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Location: Brazil Job Overview Position: Full-Time Remote Copywriter Type: Full-time, Remote Reports to: Owner and Content Strategy Director About our Client Our Client is a cutting-edge content marketing agency that builds and executes comprehensive content flywheels for businesses to maximize their discoverability across AI search engines, social platforms, and traditional search engines. They leverage proprietary AI marketing agents combined with expert human insight to create data-driven content strategies that directly appeal to target customers. Their clients range from startups to mid-sized enterprises looking to scale their content presence and dominate their semantic space. Job Summary We are seeking a skilled and innovative Copywriter to join our dynamic team. The ideal candidate will create compelling, high-performing content across multiple channels and formats, with a focus on AI-optimized content that ranks well on emerging search platforms like ChatGPT and Perplexity. You'll work closely with our AI marketing agents and content strategists to develop content that drives engagement, builds brand authority, and converts prospects into customers. Key Responsibilities Content Creation & Strategy Write high-quality blog posts, articles, and long-form content optimized for AI search engines, traditional SEO, and social discovery Develop compelling sales collateral including case studies, whitepapers, product descriptions, and sales enablement materials Create engaging social media content for LinkedIn, TikTok, and Instagram that resonates with target audiences Craft email marketing campaigns, newsletters, and nurture sequences Write scripts for short-form video content and multimedia campaigns AI-Optimized Content Development Create content specifically designed for semantic search and AI search engines Develop content that answers specific customer questions and pain points Write content that performs well in AI-powered search results on platforms like ChatGPT, Perplexity, and other emerging search technologies Collaborate with our proprietary AI system to evaluate and optimize content performance Research & Analysis Conduct competitor content analysis and market research Analyze audience personas and customer pain points to inform content strategy Stay current with AI search engine algorithms and content ranking factors Use data and analytics to iterate and improve content performance Collaboration & Process Work closely with content strategists, social media managers, and client success teams Participate in content planning and editorial calendar development Provide input on content strategy based on performance data and market insights Collaborate with design teams to ensure content aligns with visual elements Requirements Experience & Skills 3+ years of professional copywriting experience, preferably in content marketing or digital marketing agencies Strong portfolio demonstrating expertise in various content formats (blog posts, social media, sales collateral, etc.) Proven experience with SEO copywriting and content optimization Understanding of AI search engines and semantic search principles Experience with social media content creation across multiple platforms Technical Requirements Proficiency with content management systems (WordPress, HubSpot, etc.) Experience with AI writing tools and content optimization platforms Basic understanding of HTML and web publishing Familiarity with analytics tools (Google Analytics, social media analytics) Experience with project management tools (Asana, Monday.com, etc.) Core Competencies Exceptional writing, editing, and proofreading skills Strong research and analytical abilities Ability to adapt writing style for different audiences and platforms Data-driven mindset with ability to analyze content performance Creative problem-solving and strategic thinking Excellent time management and ability to meet tight deadlines Strong communication and collaboration skills Preferred Qualifications Bachelor's degree in English, Marketing, Communications, or related field Experience with B2B SaaS or technology companies Knowledge of conversion rate optimization (CRO) principles Experience with marketing automation platforms Understanding of user experience (UX) writing principles Previous experience working with AI-powered content tools Knowledge of video content creation and scriptwriting Benefits Compensation & Benefits Competitive salary commensurate with experience Remote Work Environment Fully remote position with flexible working hours Collaborative team culture with regular virtual meetings Growth Opportunities Opportunity to work with cutting-edge AI marketing technology Exposure to diverse industries and client types Professional development in emerging AI search optimization Clear career progression path within a growing agency Work Environment This is a fully remote position requiring excellent self-discipline and communication skills. You'll work with a distributed team across multiple time zones. The role requires strong internet connectivity and a dedicated workspace suitable for video calls and focused writing. Application Process To apply, please submit: Resume highlighting relevant copywriting experience Portfolio of writing samples demonstrating various content types Cover letter explaining your interest in AI-optimized content marketing

Location: Colombia Job Overview Position: Full-Time Remote Copywriter Type: Full-time, Remote Reports to: Owner and Content Strategy Director About our Client Our Client is a cutting-edge content marketing agency that builds and executes comprehensive content flywheels for businesses to maximize their discoverability across AI search engines, social platforms, and traditional search engines. They leverage proprietary AI marketing agents combined with expert human insight to create data-driven content strategies that directly appeal to target customers. Their clients range from startups to mid-sized enterprises looking to scale their content presence and dominate their semantic space. Job Summary We are seeking a skilled and innovative Copywriter to join our dynamic team. The ideal candidate will create compelling, high-performing content across multiple channels and formats, with a focus on AI-optimized content that ranks well on emerging search platforms like ChatGPT and Perplexity. You'll work closely with our AI marketing agents and content strategists to develop content that drives engagement, builds brand authority, and converts prospects into customers. Key Responsibilities Content Creation & Strategy Write high-quality blog posts, articles, and long-form content optimized for AI search engines, traditional SEO, and social discovery Develop compelling sales collateral including case studies, whitepapers, product descriptions, and sales enablement materials Create engaging social media content for LinkedIn, TikTok, and Instagram that resonates with target audiences Craft email marketing campaigns, newsletters, and nurture sequences Write scripts for short-form video content and multimedia campaigns AI-Optimized Content Development Create content specifically designed for semantic search and AI search engines Develop content that answers specific customer questions and pain points Write content that performs well in AI-powered search results on platforms like ChatGPT, Perplexity, and other emerging search technologies Collaborate with our proprietary AI system to evaluate and optimize content performance Research & Analysis Conduct competitor content analysis and market research Analyze audience personas and customer pain points to inform content strategy Stay current with AI search engine algorithms and content ranking factors Use data and analytics to iterate and improve content performance Collaboration & Process Work closely with content strategists, social media managers, and client success teams Participate in content planning and editorial calendar development Provide input on content strategy based on performance data and market insights Collaborate with design teams to ensure content aligns with visual elements Requirements Experience & Skills 3+ years of professional copywriting experience, preferably in content marketing or digital marketing agencies Strong portfolio demonstrating expertise in various content formats (blog posts, social media, sales collateral, etc.) Proven experience with SEO copywriting and content optimization Understanding of AI search engines and semantic search principles Experience with social media content creation across multiple platforms Technical Requirements Proficiency with content management systems (WordPress, HubSpot, etc.) Experience with AI writing tools and content optimization platforms Basic understanding of HTML and web publishing Familiarity with analytics tools (Google Analytics, social media analytics) Experience with project management tools (Asana, Monday.com, etc.) Core Competencies Exceptional writing, editing, and proofreading skills Strong research and analytical abilities Ability to adapt writing style for different audiences and platforms Data-driven mindset with ability to analyze content performance Creative problem-solving and strategic thinking Excellent time management and ability to meet tight deadlines Strong communication and collaboration skills Preferred Qualifications Bachelor's degree in English, Marketing, Communications, or related field Experience with B2B SaaS or technology companies Knowledge of conversion rate optimization (CRO) principles Experience with marketing automation platforms Understanding of user experience (UX) writing principles Previous experience working with AI-powered content tools Knowledge of video content creation and scriptwriting Benefits Compensation & Benefits Competitive salary commensurate with experience Remote Work Environment Fully remote position with flexible working hours Collaborative team culture with regular virtual meetings Growth Opportunities Opportunity to work with cutting-edge AI marketing technology Exposure to diverse industries and client types Professional development in emerging AI search optimization Clear career progression path within a growing agency Work Environment This is a fully remote position requiring excellent self-discipline and communication skills. You'll work with a distributed team across multiple time zones. The role requires strong internet connectivity and a dedicated workspace suitable for video calls and focused writing. Application Process To apply, please submit: Resume highlighting relevant copywriting experience Portfolio of writing samples demonstrating various content types Cover letter explaining your interest in AI-optimized content marketing

Location: Mexico Job Overview Position: Full-Time Remote Copywriter Type: Full-time, Remote Reports to: Owner and Content Strategy Director About our Client Our Client is a cutting-edge content marketing agency that builds and executes comprehensive content flywheels for businesses to maximize their discoverability across AI search engines, social platforms, and traditional search engines. They leverage proprietary AI marketing agents combined with expert human insight to create data-driven content strategies that directly appeal to target customers. Their clients range from startups to mid-sized enterprises looking to scale their content presence and dominate their semantic space. Job Summary We are seeking a skilled and innovative Copywriter to join our dynamic team. The ideal candidate will create compelling, high-performing content across multiple channels and formats, with a focus on AI-optimized content that ranks well on emerging search platforms like ChatGPT and Perplexity. You'll work closely with our AI marketing agents and content strategists to develop content that drives engagement, builds brand authority, and converts prospects into customers. Key Responsibilities Content Creation & Strategy Write high-quality blog posts, articles, and long-form content optimized for AI search engines, traditional SEO, and social discovery Develop compelling sales collateral including case studies, whitepapers, product descriptions, and sales enablement materials Create engaging social media content for LinkedIn, TikTok, and Instagram that resonates with target audiences Craft email marketing campaigns, newsletters, and nurture sequences Write scripts for short-form video content and multimedia campaigns AI-Optimized Content Development Create content specifically designed for semantic search and AI search engines Develop content that answers specific customer questions and pain points Write content that performs well in AI-powered search results on platforms like ChatGPT, Perplexity, and other emerging search technologies Collaborate with our proprietary AI system to evaluate and optimize content performance Research & Analysis Conduct competitor content analysis and market research Analyze audience personas and customer pain points to inform content strategy Stay current with AI search engine algorithms and content ranking factors Use data and analytics to iterate and improve content performance Collaboration & Process Work closely with content strategists, social media managers, and client success teams Participate in content planning and editorial calendar development Provide input on content strategy based on performance data and market insights Collaborate with design teams to ensure content aligns with visual elements Requirements Experience & Skills 3+ years of professional copywriting experience, preferably in content marketing or digital marketing agencies Strong portfolio demonstrating expertise in various content formats (blog posts, social media, sales collateral, etc.) Proven experience with SEO copywriting and content optimization Understanding of AI search engines and semantic search principles Experience with social media content creation across multiple platforms Technical Requirements Proficiency with content management systems (WordPress, HubSpot, etc.) Experience with AI writing tools and content optimization platforms Basic understanding of HTML and web publishing Familiarity with analytics tools (Google Analytics, social media analytics) Experience with project management tools (Asana, Monday.com, etc.) Core Competencies Exceptional writing, editing, and proofreading skills Strong research and analytical abilities Ability to adapt writing style for different audiences and platforms Data-driven mindset with ability to analyze content performance Creative problem-solving and strategic thinking Excellent time management and ability to meet tight deadlines Strong communication and collaboration skills Preferred Qualifications Bachelor's degree in English, Marketing, Communications, or related field Experience with B2B SaaS or technology companies Knowledge of conversion rate optimization (CRO) principles Experience with marketing automation platforms Understanding of user experience (UX) writing principles Previous experience working with AI-powered content tools Knowledge of video content creation and scriptwriting Benefits Compensation & Benefits Competitive salary commensurate with experience Remote Work Environment Fully remote position with flexible working hours Collaborative team culture with regular virtual meetings Growth Opportunities Opportunity to work with cutting-edge AI marketing technology Exposure to diverse industries and client types Professional development in emerging AI search optimization Clear career progression path within a growing agency Work Environment This is a fully remote position requiring excellent self-discipline and communication skills. You'll work with a distributed team across multiple time zones. The role requires strong internet connectivity and a dedicated workspace suitable for video calls and focused writing. Application Process To apply, please submit: Resume highlighting relevant copywriting experience Portfolio of writing samples demonstrating various content types Cover letter explaining your interest in AI-optimized content marketing

Location: Argentina Job Overview Position: Full-Time Remote Copywriter Type: Full-time, Remote Reports to: Owner and Content Strategy Director About our Client Our Client is a cutting-edge content marketing agency that builds and executes comprehensive content flywheels for businesses to maximize their discoverability across AI search engines, social platforms, and traditional search engines. They leverage proprietary AI marketing agents combined with expert human insight to create data-driven content strategies that directly appeal to target customers. Their clients range from startups to mid-sized enterprises looking to scale their content presence and dominate their semantic space. Job Summary We are seeking a skilled and innovative Copywriter to join our dynamic team. The ideal candidate will create compelling, high-performing content across multiple channels and formats, with a focus on AI-optimized content that ranks well on emerging search platforms like ChatGPT and Perplexity. You'll work closely with our AI marketing agents and content strategists to develop content that drives engagement, builds brand authority, and converts prospects into customers. Key Responsibilities Content Creation & Strategy Write high-quality blog posts, articles, and long-form content optimized for AI search engines, traditional SEO, and social discovery Develop compelling sales collateral including case studies, whitepapers, product descriptions, and sales enablement materials Create engaging social media content for LinkedIn, TikTok, and Instagram that resonates with target audiences Craft email marketing campaigns, newsletters, and nurture sequences Write scripts for short-form video content and multimedia campaigns AI-Optimized Content Development Create content specifically designed for semantic search and AI search engines Develop content that answers specific customer questions and pain points Write content that performs well in AI-powered search results on platforms like ChatGPT, Perplexity, and other emerging search technologies Collaborate with our proprietary AI system to evaluate and optimize content performance Research & Analysis Conduct competitor content analysis and market research Analyze audience personas and customer pain points to inform content strategy Stay current with AI search engine algorithms and content ranking factors Use data and analytics to iterate and improve content performance Collaboration & Process Work closely with content strategists, social media managers, and client success teams Participate in content planning and editorial calendar development Provide input on content strategy based on performance data and market insights Collaborate with design teams to ensure content aligns with visual elements Requirements Experience & Skills 3+ years of professional copywriting experience, preferably in content marketing or digital marketing agencies Strong portfolio demonstrating expertise in various content formats (blog posts, social media, sales collateral, etc.) Proven experience with SEO copywriting and content optimization Understanding of AI search engines and semantic search principles Experience with social media content creation across multiple platforms Technical Requirements Proficiency with content management systems (WordPress, HubSpot, etc.) Experience with AI writing tools and content optimization platforms Basic understanding of HTML and web publishing Familiarity with analytics tools (Google Analytics, social media analytics) Experience with project management tools (Asana, Monday.com, etc.) Core Competencies Exceptional writing, editing, and proofreading skills Strong research and analytical abilities Ability to adapt writing style for different audiences and platforms Data-driven mindset with ability to analyze content performance Creative problem-solving and strategic thinking Excellent time management and ability to meet tight deadlines Strong communication and collaboration skills Preferred Qualifications Bachelor's degree in English, Marketing, Communications, or related field Experience with B2B SaaS or technology companies Knowledge of conversion rate optimization (CRO) principles Experience with marketing automation platforms Understanding of user experience (UX) writing principles Previous experience working with AI-powered content tools Knowledge of video content creation and scriptwriting Benefits Compensation & Benefits Competitive salary commensurate with experience Remote Work Environment Fully remote position with flexible working hours Collaborative team culture with regular virtual meetings Growth Opportunities Opportunity to work with cutting-edge AI marketing technology Exposure to diverse industries and client types Professional development in emerging AI search optimization Clear career progression path within a growing agency Work Environment This is a fully remote position requiring excellent self-discipline and communication skills. You'll work with a distributed team across multiple time zones. The role requires strong internet connectivity and a dedicated workspace suitable for video calls and focused writing. Application Process To apply, please submit: Resume highlighting relevant copywriting experience Portfolio of writing samples demonstrating various content types Cover letter explaining your interest in AI-optimized content marketing

Location: Eastern U.S. At Reltio®, an SAP Company, we believe data should fuel your success in the enterprise AI era. Our  Context Intelligence Platform turns fragmented data into a trusted, connected context so AI agents and systems can act with expert-level judgement at enterprise scale. Reltio’s cloud-native SaaS platform harmonizes, unifies, and governs data across sources and formats—including unstructured data—in real time, turning them into data assets that can be mobilized in milliseconds to any application, user, or AI agent. Trusted by more than 200 of the world’s largest brands across industries such as life sciences, financial services, healthcare, and technology, we fuel frictionless operations and help enterprises accelerate  innovation and reduce risk. At Reltio, our values guide everything we do. With an unyielding commitment to prioritizing our “Customer First”, we strive to ensure their success. We embrace our differences and are “Better Together” as One Reltio. We are always looking to “Simplify and Share” our knowledge when we collaborate to remove obstacles for each other. We hold ourselves accountable for our actions and outcomes and strive for excellence. We “Own It”. Every day, we innovate and evolve, so that today is “Always Better Than Yesterday”. If you share and embody these values, we invite you to join our team at Reltio and contribute to our mission of excellence. Reltio has earned numerous awards and industry and analyst recognition for our technology, our culture and our people. Reltio was founded on a distributed workforce and offers flexible work arrangements to help our people manage their personal and professional lives. If you’re ready to work on unrivaled technology where your desire to be part of a collaborative team is met with a laser-focused mission to enable digital transformation with connected data, let’s talk! Job Summary: The Associate Customer Engineer provides expert technical support to high-value customers, and partners resolving complex issues and proactively ensuring system health. They also play a key role in mentoring customer engineers and sharing knowledge to enhance overall customer satisfaction and product improvement. Job Duties and Responsibilities: Handle highly complex technical problems for our customers that include technical configuration, workflow compilation, lambda code debug, integration and JSON knowledge. Primarily aligned for concierge and premier success plans customers. Resolve customer technical issues through diligent research, reproduction, and troubleshooting. Provide alternate solutions and exercise independent judgment in developing methods, techniques, and evaluation criteria that lead to prompt resolution of issues. Provide high-quality customer engineering assistance that results in high customer satisfaction. Serve as a subject matter expert in multiple product features for supporting, enhancing, and fixing solutions that support a rapidly growing business at a massive scale. Attend meetings with clients to analyze, troubleshoot, and diagnose problems Resolve customer issues and ensure appropriate ticket investigation and resolution quality. Share and develop best practices with team members to enhance the quality and efficiency of technical support and contribute to the knowledge base. Participate in rapid response teams that include engineering and DevOps to be the face of the customer in communications and feedback Actively monitor tenant-level alerting tools and participate in collaborative communications for escalation prevention. Provide input on product and service-related enhancement requests back to Engineering, Product Management, Sales, and Marketing teams. that will improve our customers' successful use of our products and drive adoption. Understand and keep up-to-date on the latest product functionality, its dependencies, the underlying architecture, and its operational impact. Participate in a 24/7 on-call rotation, providing after-hours support for critical issues. Enhance the quality and efficiency of technical support and contribute to the knowledge base. Proactively communicate to avoid escalations and negative customer satisfaction. Author technical documents on common issues and solutions to build the knowledge base and participate in communities. Support weekend shifts on a rotational/as-needed basis if requested. Other duties and responsibilities as assigned. Skills You Must Have: Bachelor's degree in Computer Science or equivalent field of study. Programming (Python, Java) and solid understanding of cloud technologies. Have completed two or more Internships during the undergraduate or graduate studies. Motivated to learn and adopt new technologies demonstrated by having taken certifications Troubleshooting and debugging skills demonstrated by curiosity in determining solutions and workarounds for problems in hand. Problem solving and analytical skills. Skills That Are Nice to Have: MS in computer science or equivalent experience preferred. Experience with NoSQL databases (Cassandra, Elastic Search, DynamoDB preferred), and distributed indexes is a plus. Object oriented programming and designs, Data Structures and Algorithms Experience in data management, master data management, analytics, and big data platforms and technologies. At Reltio, we carefully consider a wide range of compensation factors to determine your personal top of market. We rely on market indicators to determine compensation and your specific job family, background, skills, and experience to get it right. These considerations can cause your compensation to vary and will also be dependent on your location. Overall Market Range $61,000 — $138,000 USD Reltio is proud to be an equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. Reltio is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities.

Location: Hong Kong, Hong Kong SAR; Singapore, Singapore OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa About OKX At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity The Trading Service team is the backbone of our exchange's industry-leading trading product, which is utilized by millions of users. We are responsible for the core order and position management systems, enabling a full spectrum of trading products, including manual, automatic, and social trading, as well as brokerage services. Our platform supports diverse financial instruments such as spot, margin, futures, options, and perpetuals. Join our elite Trading Service team as a Senior Staff Software Engineer, where you will be a pivotal technical leader shaping the future of our ultra-low latency, high-throughput trading platform. This is a highly impactful individual contributor role for an exceptional engineer with a deep passion for financial markets and cutting-edge technology. You will own and drive the architectural direction for critical system components, solve the most complex technical challenges across multiple teams, and significantly influence our engineering practices and technical roadmap. Your work will directly empower millions of users and underpin the efficiency of our industry-leading exchange. What You’ll Be Doing Define and own the long-term technical architecture and strategy for core trading platform components, ensuring alignment with business goals and operational excellence Spearhead the design and implementation of highly challenging, ambiguous, and cross-cutting technical projects that span multiple engineering teams Identify and eliminate critical performance bottlenecks across the entire trading architecture, implementing advanced low-latency and high-throughput solutions in Java Serve as a definitive technical authority and subject matter expert in core trading systems and Java performance; provide technical guidance, code reviews, and mentorship to senior and mid-level engineers Stay abreast of industry trends, research emerging technologies (e.g., new concurrency models, hardware acceleration), and propose innovative solutions to enhance the platform's competitive edge Design highly resilient, fault-tolerant systems and drive best practices in monitoring, alerting, incident response, and post-mortem analysis for mission-critical trading infrastructure Collaborate extensively with Stakeholders to translate strategic business needs into highly efficient and scalable technical solutions; influence product roadmaps from a technical feasibility and architectural sustainability perspective Evangelize and enforce high standards in software engineering design, coding, testing, and deployment practices across multiple teams What We Look For In You Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field (or a strong STEM education background) Expert-level proficiency in modern C++, with deep knowledge of memory management, lock-free concurrency, template metaprogramming, and compiler-level performance tuning 10+ years of extensive professional experience designing, building, and operating high-performance, ultra-low latency distributed systems in Java Expert-level proficiency in Java for performance-critical applications, including profound knowledge of JVM internals, garbage collection tuning, and advanced concurrency patterns Proven experience as a technical leader or architect for major system components, demonstrating the ability to drive technical direction, with exceptional expertise in message-oriented middleware Deep understanding of network protocols, OS-level optimizations (Linux), hardware considerations, database technologies (SQL and NoSQL), and strong track record of driving DevOps practices, CI/CD, and monitoring Nice to Haves PhD in Computer Science, Electrical Engineering, Physics, Mathematics, or a related quantitative discipline Direct experience leading the architecture or core development of matching engines, market data processing systems, or complex algorithmic trading strategies in an HFT environment In-depth knowledge of FIX Protocol and other relevant financial industry messaging standards Experience with hardware-level optimizations, FPGA/ASIC acceleration, or specialized networking components Active contributions to significant open-source projects, academic publications, or industry conferences in low-latency computing or FinTech Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! #LI-ML1 #LI-ONSITE Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Location: New York City DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk. Headquartered in Chicago with offices throughout the U.S., Canada, Europe, and Asia, we trade a variety of asset classes including Fixed Income, ETFs, Equities, FX, Commodities and Energy across all major global markets. We have also leveraged our expertise and technology to expand into three non-traditional strategies: real estate, venture capital and cryptoassets. We operate with respect, curiosity and open minds. The people who thrive here share our belief that it’s not just what we do that matters–it's how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. About the Team We are a fast-moving and progressively-thinking team that intimately collaborates with traders and quantitative researchers to implement, refine and deploy alpha signals, evaluate and maintain trading tools, improve our research pipeline, while ensuring that our code bases remain nimble, maintainable and extensible. We embed deeply with our customers to solve high-impact, complex problems. We move quickly when we prototype, and we tread lightly when we ship to production. We operate at the intersection of ensuring customer success and creating quality products that stand the test of time. About the Role As a Research Engineer , you will be an integral member of a systematic trading team comprised of experienced technologists, quantitative researchers, and traders. You will: Work directly with researchers to implement research studies, simulate trading strategies, and develop algorithms to compete in financial markets. Embed with trading desks, work intimately with traders and portfolio managers, learn about their problem spaces, extract domain models, and build ergonomic, performant and extendable engineering solutions Collaborate with other engineering teams to accelerate the research lifecycle from strategy prototype to production deployment Evaluate new technology and improve our technology stack on a continuous basis What you bring to the team: Bachelor’s degree in Computer Science, Computer Engineering, or related field A minimum of 2+ years’ experience using Python in a production setting A strong understanding of quantitative finance and mathematics Experience with linux-based, large-scale, concurrent, high-throughput, low-latency software systems A track record of working directly with end customers, scoping and delivering production systems in fast-moving and ambiguous environments Exceptional interpersonal skills - you communicate clearly with stakeholders as well as other engineers, fostering a collaborative, supportive working environment. Experience with low-level systems programming languages (C/C++, Rust, Zig) is a plus Experience with functional programming is a plus The annual base salary range for this position is $175,000 to $225,000, depending on the candidate’s experience, qualifications, and relevant skill set. The position is also eligible for an annual discretionary bonus.  In addition, DRW offers a comprehensive suite of employee benefits including group medical, pharmacy, dental and vision insurance, 401k (with discretionary employer match), short and long-term disability, life and AD&D insurance, health savings accounts, and flexible spending accounts. For more information about DRW's processing activities and our use of job applicants' data, please view our Privacy Notice at https://drw.com/privacy-notice . California residents, please review the California Privacy Notice for information about certain legal rights at https://drw.com/california-privacy-notice . #LI-BL1

Location: San Francisco, CA | New York City, NY | Seattle, WA About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the Role As a TPU Performance Engineer, you'll be responsible for identifying and addressing performance issues across many different ML systems, including research, training, and inference. A significant portion of this work will involve designing and optimizing kernels for the TPU. You will also provide feedback to researchers about how model changes impact performance. Strong candidates will have a track record of solving large-scale systems problems and low-level optimization. You may be a good fit if you: Have significant experience optimizing ML systems for TPUs, GPUs, or other accelerators Are results-oriented, with a bias towards flexibility and impact Pick up slack, even if it goes outside your job description Enjoy pair programming (we love to pair!) Want to learn more about machine learning research Care about the societal impacts of your work Strong candidates may also have experience with: High performance, large-scale ML systems Designing and implementing kernels for TPUs or other ML accelerators Understanding accelerators at a deep level, e.g. a background in computer architecture ML framework internals Language modeling with transformers Representative projects: Implement low-latency, high-throughput sampling for large language models Adapt existing models for low-precision inference Build quantitative models of system performance Design and implement custom collective communication algorithms Debug kernel performance at the assembly level The annual compensation range for this role is listed below. For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role. Annual Salary: $280,000 — $850,000 USD Logistics Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices. Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this. For roles performing work in California: We will consider for employment all qualified applicants, including those with arrest or conviction records or criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the San Francisco Fair Chance Ordinance, the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act. We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed.  Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work. We think AI systems like the ones we're building have enormous social and ethical implications. We think this makes representation even more important, and we strive to include a range of diverse perspectives on our team. Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you from @anthropic.com email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links—visit anthropic.com/careers directly for confirmed position openings. How we're different We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts. And we value impact — advancing our long-term goals of steerable, trustworthy AI — rather than work on smaller and more specific puzzles. We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science. We're an extremely collaborative group, and we host frequent research discussions to ensure that we are pursuing the highest-impact work at any given time. As such, we greatly value communication skills. The easiest way to understand our research directions is to read our recent research. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences. Come work with us! Anthropic is a public benefit corporation headquartered in San Francisco. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space in which to collaborate with colleagues. Guidance on Candidates' AI Usage: Learn about our policy for using AI in our application process.

Location: Abu Dhabi, United Arab Emirates; Luxembourg; Berlin, Germany; Bratislava, Slovakia; Bucuresti, Romania; Budapest, Hungary; Dresden, Germany; Dubai, United Arab Emirates; Düsseldorf, Germany; Erevan, Armenia; London, United Kingdom; Frankfurt, Germany; Hamburg, Germany; Hannover, Germany; Krakow, Poland; Kyiv, Ukraine; Leverkusen, Germany; Leipzig, Germany; Manchester, United Kingdom; Poland; Praha, Czechia; Skopje, North Macedonia; Sofia, Bulgaria; Stuttgart, Germany; Tallinn, Estonia; Tashkent, Uzbekistan; Tbilisi, Georgia; Warsaw, Poland Workplace: remote TechBiz Global is a leading recruitment and software development company. Our diverse, globally distributed team provides IT recruitment, outstaffing, outsourcing, software development, and different consulting services with a primary focus on making our partners achieve their business goals successfully. With headquarters in Germany we have successful clients all over the world. We can understand your unique needs. Our team has hands-on experience with the challenges that come with rapid growth and the IT sector. That’s why all of our offerings are built with a tech mindset. We are looking for a Head of HFT for our client in a remote set up role. Requirements 1. 3+ years of hands-on experience in high-frequency or algorithmic trading. 2. Proven track record of working with top-tier trading firms , proprietary trading desks, or hedge funds. 3. Experience leading or contributing to successful HFT strategies and systems. 4. Deep understanding of low-latency systems , high-throughput data processing, and network optimization. 5. Fluent in English (written and spoken). What You’ll Do Lead the design, development, and optimization of high-frequency trading strategies. Build and manage a high-performing HFT team, including quants and engineers. Collaborate with leadership to align trading strategy with overall business goals. Analyze and act on large data sets in real-time to identify profitable opportunities. Maintain and continuously improve latency-sensitive infrastructure. Ensure robust risk management protocols and compliance with relevant regulations. Drive innovation and research in algorithmic trading within the Web3 and crypto space.

Location: Singapore, Singapore OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity The Middle Exchange Platform team develops the core modules of the exchange, including the matching engine, real-time market data streaming, and market data analysis. It is the backbone of our industry-leading trading product, used by millions of users. We are seeking highly motivated Java/C++ Engineers to join our cutting-edge team. In this role, you will design, develop, and optimize our systems, which are critical components of our technology stack. We leverage AI technologies to enhance efficiency and performance, offering a unique opportunity for individuals who are eager to learn and grow in a fast-paced, innovative environment. Candidates with prior experience in large internet companies will excel in this role, as they will bring valuable insights into building and maintaining high-performance, distributed systems. If you are passionate about solving complex problems, improving system performance, and exploring new technologies, this is the role for you! What You’ll Be Doing System Design and Development : Build and maintain high-performance systems with a focus on reliability, scalability, and low latency. Troubleshooting and Debugging : Diagnose and resolve complex system issues, including debugging at the assembly language level when necessary. Use advanced troubleshooting tools and methodologies to ensure system stability and performance. Collaborative Innovation : Work closely with cross-functional teams to design and implement new features and improve existing systems. Actively contribute to brainstorming and exploring new technologies, including AI-driven innovations. Maintain High Standards : Write clean, efficient, and maintainable code. Conduct comprehensive code reviews, performance testing, and quality assurance to ensure robust and reliable systems. AI-Driven Optimization : Leverage AI tools and techniques to analyze, optimize, and improve system performance and operational efficiency. Experiment with and implement AI-driven solutions to enhance troubleshooting and automation. What We Look For In You Strong Programming Skills : Expertise in Java or C++, with a solid understanding of object-oriented programming, concurrency, and system-level programming. Experience in High-Performance Systems : Proven ability to develop and optimize low-latency, high-throughput systems. Expertise in performance tuning, memory management, and concurrency optimization. Exceptional Troubleshooting Skills : Proficient in diagnosing and resolving complex system issues using tools such as profilers, debuggers, and log analyzers. Ability to perform low-level debugging, including assembly language debugging when needed. Solid Fundamentals : Solid STEM (Science/Technology/Engineering/Mathematics) education background. Strong knowledge of data structures, algorithms, system design, and network protocols. Nice to Haves Experience in large internet companies, with a background in developing and maintaining high-availability, high-performance systems, and hands-on experience in supporting large-scale peak traffic scenarios. Familiarity with low-latency systems, real-time applications, or high-frequency trading platforms. Knowledge of message-oriented middleware, or asynchronous programming paradigms. Familiarity with DevOps practices and tools, such as CI/CD pipelines, containerization (Docker/Kubernetes), or cloud platforms. Proficiency in speaking, reading and writing in both English and Mandarin to collaborate effectively with global and cross-functional team members. Experience with AI technologies to improve efficiency. Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! #LI-ML1 #LI-ONSITE Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Location: Lagos, Nigeria; Russia We are looking for a Data Science Manager with a strong background in managing data-driven solutions to lead a high-performing DS team within the banking sector. This role combines ML expertise, team leadership, and cross-functional communication, with a focus on scorecard development, model performance, and portfolio risk monitoring. Responsibilities Advanced ML-modeling and data-exploration: ensembles and AI-algorithms, AI-initiatives management, external AI-services integration. Focus on models and solutions for: credit, fraud, marketing, collection and contact strategies, text, speech and behavioral analytics, dynamic pricing and limits. Stakeholders' expectations management: communication with risk (portfolio) team, collection team, other business units on score-modelling and backlog prioritization, task clarification. DS-team management: recruitment, training, performance improvement, scrum-servicing, task-management. Improvement DS-team communication with consumers and business needs understanding. Environment, process and tools management: git, Jira board, Confluence content, Agile rituals. ML-data management: colabration with DWH-team; data-availability, reliability and quality assessment; new/existent data-sources integrations support and management, data-flow stability control, feature-store administation. ML-model lifecycle management: from business needs identification to "sell", deployment and production-test stage. ML-models stability monitoring and quality control, reassessment and proactive quality improvement (re-calibration/ re-building). Knowledge management: Maintain up-to-date project documentation, implement standards, control discipline and maintain actuality for confluence descriptions, feature-store meta-data, git documentation, internal experience sharing and handover, new methodologies and tools review and implementation. Requirements Demonstrated experience working in fintech or banking, especially within emerging markets. Hands-on experience developing ML scoring models for text, speech, behavioral analytics, and dynamic modeling in card businesses. Strong programming skills in Python and SQL for data analysis, modeling, and automation. Proven experience with machine learning techniques, including: Regression, classification, ranking, boosting Graph-based models, neural networks, NLP, and large language models (LLMs) Solid understanding and practical implementation of AI concepts and systems. Familiarity with MLOps, including data pipelines, model deployment, and productionizing machine learning solutions. Experience with cloud computing platforms, especially AWS (highly preferred). Proficiency with BI and data visualization tools such as PowerBI, Excel, Tableau, or Grafana. Prior exposure to risk management or analytics, particularly within the cards or payments space. Strong grasp of Agile and Scrum methodologies in a data or engineering environment. Excellent communication and presentation skills, with the ability to simplify complex data concepts for both technical and non-technical audiences. Fluent in spoken English.

Location: Tbilisi, Georgia; Limassol, Cyprus Workplace: hybrid TradingView is the world’s largest financial analysis platform with more than 100M users across 180+ countries. We build tools that help traders and investors make informed decisions — from advanced charting and market data to collaboration and publishing features. Our products are used daily by millions of individuals and trusted by companies like Revolut, Binance, and CME Group. We’re continuing to grow and scale our platform, and we’re looking for people who care about product quality, take ownership of their work, and want to build systems used by a global audience. About the team We’re looking for iOS developers to join our mobile product direction. Within the direction, there are several product teams responsible for different parts of the application, including subscriptions and monetization, data-driven screens and charts, integrations with external services, and key user-facing sections. The work involves complex product logic, a large number of application states, and careful UI implementation. Responsibilities Develop and maintain iOS code in Swift with a focus on quality and architecture Build complex screens and interface behavior using UIKit, SwiftUI, and CoreAnimation Work with application architecture using VIPER and MVVM Handle asynchronous logic and multithreading with GCD and Swift Concurrency Optimize performance and investigate complex stability issues Integrate with backend APIs and ensure correct client-side behavior Collaborate with product, design, and QA throughout the development process Participate in code reviews and share expertise with the team What makes you the perfect fit 4+ years of experience in iOS application development Strong knowledge of Swift and hands-on experience with UIKit and SwiftUI Experience building complex screens and maintaining a stable user experience across devices Experience optimizing application performance for speed and efficiency Good understanding of Clean Architecture and experience with VIPER and MVVM Experience working with multithreading using GCD and Swift Concurrency Strong understanding of iOS platform design principles and interface guidelines Experience working with CoreAnimation Will be a plus Understanding of algorithms and data structures Experience in finance or trading domain Familiarity with TradingView as a product What are ready to offer you Flexible working hours and a hybrid work format Well-equipped offices for focused and collaborative work A global, distributed team of 500+ professionals Learning, mentorship, and long-term career growth Relocation support and private health insurance Performance-based bonuses TradingView Premium access Regular team events and company-wide meetups Join the TradingView team and help us build a product used by millions of traders and investors worldwide. We look forward to hearing from you!

Location: Belgrade; London; Berlin Perplexity is looking for a highly skilled Senior or Expert Systems Engineer to join our Search Core team. This role is critical to building next-generation search products and technologies. You will help drive key decisions around the architecture, design, and implementation of foundational components in our technical stack. Responsibilities - Design and build core search engine components, including indexing pipelines, retrieval algorithms, and ranking systems that operate at the scale of billions of pages - Develop streaming and batch data processing systems for search index construction in a high-load environment - Push the limits of hardware performance through low-level optimizations and systems-level tuning - Tackle challenges in multithreading, concurrency, and system-level optimization Qualifications - 3+ years of hands-on experience in systems programming (Rust, C++, C, or similar) - Ownership of full project lifecycle — you don't just write a fast inner loop, you care about how the system is built, deployed, operated, and scaled in production - Knowledge of Python or other scripting languages - Passion for writing clean, efficient, and scalable systems-level code - Strong knowledge of algorithms and data structures, and the ability to apply them effectively - Deep understanding of multithreading, including various approaches, challenges, and trade-offs - Experience building high-load, distributed, and hardware-adjacent services - Solid understanding of Linux internals (syscalls, networking stack, memory model, kernel tuning) - Familiarity with low-level optimization techniques (memory management, cache efficiency, SIMD, profiling) Preferred Qualifications - Experience developing core components of search engines, databases, or information retrieval systems - Understanding of search fundamentals: indexing, query parsing, ranking, and relevance - Experience with trading systems or other latency-sensitive real-time systems - Familiarity with cloud services, Kubernetes, and AWS infrastructure

Location: Belgrade; London; Berlin Perplexity is looking for a highly skilled Senior or Expert Systems Engineer to join our Search Core team. This role is critical to building next-generation search products and technologies. You will help drive key decisions around the architecture, design, and implementation of foundational components in our technical stack. Responsibilities - Design and build core search engine components, including indexing pipelines, retrieval algorithms, and ranking systems that operate at the scale of billions of pages - Develop streaming and batch data processing systems for search index construction in a high-load environment - Push the limits of hardware performance through low-level optimizations and systems-level tuning - Tackle challenges in multithreading, concurrency, and system-level optimization Qualifications - 3+ years of hands-on experience in systems programming (Rust, C++, C, or similar) - Ownership of full project lifecycle — you don't just write a fast inner loop, you care about how the system is built, deployed, operated, and scaled in production - Knowledge of Python or other scripting languages - Passion for writing clean, efficient, and scalable systems-level code - Strong knowledge of algorithms and data structures, and the ability to apply them effectively - Deep understanding of multithreading, including various approaches, challenges, and trade-offs - Experience building high-load, distributed, and hardware-adjacent services - Solid understanding of Linux internals (syscalls, networking stack, memory model, kernel tuning) - Familiarity with low-level optimization techniques (memory management, cache efficiency, SIMD, profiling) Preferred Qualifications - Experience developing core components of search engines, databases, or information retrieval systems - Understanding of search fundamentals: indexing, query parsing, ranking, and relevance - Experience with trading systems or other latency-sensitive real-time systems - Familiarity with cloud services, Kubernetes, and AWS infrastructure

Location: ES - Barcelona, Spain Scopely is seeking a highly motivated Senior/Software Engineer to join our Playgami team in Barcelona on a hybrid basis! At Scopely, we care deeply about what we do and want to encourage play every day - whether in our work environments alongside our talented colleagues or through our deep connections with our communities of players. We are a global team of game lovers who are developing, publishing, and innovating the mobile games industry, connecting millions of people worldwide daily. Playgami is building the best SaaS gaming platform ever! The team strives to build the world’s best products for game production, operation, and insights. Powering many award-winning, loved-by-millions franchise games over mobile, web, and PC. What You’ll Do Design, architect, and help implement features to run world-class games at scale Take ownership for the quality of what the team creates, helping to establish good practices Deliver code and supporting documentation of the highest quality through good design, attention to detail, and system testing on a timely basis Ensure our systems perform, and are reliable, scalable, and secure Work in an agile environment where your opinions matter Team up with skilled colleagues who are committed to delivering the best products possible Share knowledge and help colleagues both inside and outside of your team What We’re Looking For Team player with good communication skills, someone who is easy to work with Strong computer science and engineering fundamentals (data structures, concurrency, design patterns, algorithms) High-quality and maintainable code writing Mastery of Java, C#, or another OO language, including experience with asynchronous, multi-threaded, parallel programming paradigms Always looking further to keep improving your skills Product Engineering Mindset You are not senior? Go for it and apply, we are seeking talented and driven engineers at all levels, from junior on up! Bonus Points Hands-on experience with cloud computing (AWS, GCP...) You do not fear acronyms like TDD, CI, CD Experience with low-latency, high-volume distributed systems and Big Data computing technologies Web development on a modern framework such as React or Angular At Scopely, we create games for everyone - and want to ensure that the people behind our games reflect that!   We are committed to creating a diverse, supportive work environment where everyone is treated with respect. We are committed to providing equal employment opportunities and welcome individuals from all backgrounds to join us & embrace the adventure! About Scopely Scopely is a leading video game and global interactive entertainment company, home to many of the world’s most beloved and enduring experiences, including two of the most successful mobile games of all-time “MONOPOLY GO!” and “Pokémon GO,” along with “Stumble Guys,” “Star Trek™ Fleet Command,” “MARVEL Strike Force,” “WWE Champions,” the Scrabble® franchise, “Yahtzee® With Buddies,” and many others. Across mobile, web, PC, and console, Scopely creates, develops, publishes, and live-operates one of the most diversified and award-winning portfolios in the games industry — bringing hundreds of millions of players together through a shared love of play. Founded in 2011, Scopely is powered by its exceptional team — including thousands of world-class gamemakers around the globe, a distinctive tenet-driven culture, and its proprietary technology platform, Playgami. Together, these strengths have fueled Scopely’s position as the #1 mobile games company in the U.S. and #2 globally, generating more than $10 billion in lifetime revenue. Whether building global sensations like “MONOPOLY GO!” from the ground up, or expanding through strategic acquisitions, including the FoxNext, GSN, and Scopely Explore games businesses — Scopely consistently delivers experiences players love today and return to for years to come. Recognized multiple times as one of the "100 Most Influential Companies in the World" by TIME magazine and one of Fast Company's "World's Most Innovative Companies" and “Best Workplaces for Innovators,” Scopely believes that video games can be a force for good — creating meaningful connections, vibrant communities, and making life better through play. Scopely has global operations and partners across four continents in more than a dozen countries worldwide. For more information, visit: https://www.scopely.com/ . Notice to Candidates: Scopely will never request payment or financial information during the application or hiring process. Please apply only through our official website and verify that all Talent Partner communications come from an email address ending in @ scopely.com . Should you have any questions or encounter any fraudulent requests/emails/websites, please immediately contact recruiting@scopely.com. Our job applicant privacy policies are available here: California Privacy Notice and EEA/UK Privacy Notice . Employment at Scopely is based solely on a person's merit and qualifications. Scopely does not discriminate against any employee or applicant because of race, creed, color, religion, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition (including breastfeeding), or any other basis protected by law. We also consider qualified applicants with arrest or conviction records, consistent with applicable federal, state and local law.

Location: US / Remote Workplace: remote About the Company Founded in 2018 by professors of Yale University and Columbia University, CertiK is a pioneer in blockchain security, utilizing best-in-class AI technology to secure and monitor blockchain protocols and smart contracts. CertiK’s mission is to secure the cyber world. Starting with blockchain, CertiK applies cutting-edge innovations from academia into enterprise, enabling mission-critical applications to be built with security and correctness. CertiK is one of the fastest growing and most trusted companies in blockchain security and has become a true market leader. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Yearn, and Chiliz. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance. About the Position The primary responsibility of this role is contributing to CertiK’s security-related services at the intersection of cybersecurity and blockchain. CertiK’s offerings include security consulting, security reviews, and security auditing of smart contracts and blockchains, alongside penetration testing and various verification processes. As a Security Engineer at CertiK,
, You’ll discover and analyze security vulnerabilities in blockchain smart contracts, summarize attacked vulnerabilities, and design feature code analysis tools. You’ll also stay up-to-date with analysis tools and new technology trends to further strengthen CertiK’s security offerings and expand our services. Responsibilities Participate in blockchain smart contract audits, identifying, analyzing, and addressing security vulnerabilities. Help evaluate and define attack models for blockchain security. Summarize and extract key characteristics from exploited code to build and maintain tools for feature code analysis. Research and work with different analysis tools, continually learning and adapting to emerging technologies in the space. Requirements A bachelor’s degree (or higher) in full-time education, preferably in a science or engineering field, plus 3+ years of work experience. Familiarity with fundamental information security concepts. Proficiency in at least one of the following languages: Solidity, Go, Rust, C++, Python, or Node.js, along with a solid grasp of common algorithms. A demonstrated ability to function in an English working environment with strong English reading and writing skills. A passion for blockchain technology and a drive to learn and adapt to new technologies. Bonus Points Experience working with production pipelines—maintaining or developing them. Familiarity with static code analysis (e.g., Syntax Analysis, Semantic Analysis, Taint analysis). Exposure to popular blockchain-related platforms and technologies (e.g., Ethereum, Hyperledger, Cosmos). Prior knowledge of blockchain smart contracts, security audits, and associated best practices. Hands-on blockchain experience such as evaluating risks for blockchain projects or analyzing on-chain security events. Target annual salary for this role performed is $90,000 - $150,000 if based in the US. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. CertiK accepts applications for this position on an ongoing basis.   CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.   In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.   CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.   CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf   All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Location: European Union; Ukraine Workplace: Remote About the Role We’re looking for a Senior Game Developer to bring fresh ideas, strong technical expertise, and a passion for building high-quality games. This role is ideal for someone who enjoys working close to the engine, developing new features, and continuously improving performance and scalability. You’ll be part of a team that values ownership, creativity, and speed, where your work directly shapes the player experience. If you’re driven by building engaging products, enjoy solving technical challenges, and want to push the boundaries of what great game development looks like, we’d love to hear from you. Key Responsibilities - Develop and optimise game features with a strong focus on performance (FPS, CPU usage) - Work closely with the game engine, contributing to its evolution and improvements - Propose and implement efficient algorithms and technical solutions - Design and write unit tests to ensure code quality and stability - Build tools and scripts to improve development efficiency - Collaborate with a team of developers, contributing to a culture of openness and agility - Actively participate in the Engineering Community, sharing knowledge and ideas Requirements - 4+ years of experience in JavaScript UI client development in a commercial environment - Strong expertise in TypeScript and modern JavaScript (ES6+) - Solid understanding of Canvas/WebGL rendering cycles - Deep understanding of the Event Loop and synchronous vs asynchronous approaches - Experience in cross-browser development - Strong knowledge of OOP principles and game programming patterns - Experience with Git - Strong communication skills and a collaborative mindset - Product-first approach with a proactive attitude - Self-sufficient, results-driven, and eager to learn Nice to Have - Understanding of performance optimisation, memory management, and threading - Experience in game development - Familiarity with Spine animations and TexturePacker - Experience with GitHub Actions and CI/CD processes - Experience with unit testing frameworks - Familiarity with Jira and Confluence - Basic knowledge of Vue - Experience in full-stack development - Understanding of Scrum workflows What We Offer - Competitive Salary - Quarterly Bonuses - Unlimited Paid Time Off - Unlimited Paid Sick Leave - Remote & Flexible Working - Private Medical Insurance - Financial Support for Life Events - Professional Development Budget - International Exposure - Regular Company Events *Benefits may vary depending on location and contractual agreement Recruitment Process 1. HR Interview (30-45 min) 2. Technical interview with live coding (up to 90 min) 3. Final Interview with C-level (60 min) By submitting your application, you acknowledge that your personal data will be processed in accordance with our Privacy Policy https://playson.com/privacy.

Location: Malmö About Neo4j: Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise-ready knowledge graphs for accurate, explainable, and governed AI; the most comprehensive, trusted, and easy-to-deploy graph capabilities across any environment and data source; and an unmatched ecosystem trusted by 84 of the Fortune 100 and supported by the world’s largest graph community. Intelligence that works. Results that matter. Built to work everywhere and integrate with everything across every cloud for dynamic, personalized, and autonomous AI systems. We deliver quicker results, contextual knowledge, and solutions that impact customers and employees across the business. Our Vision: At Neo4j, we have always strived to help the world make sense of data. As business, society and knowledge become increasingly connected, our technology promotes innovation by helping organizations to find and understand data relationships. We created, drive and lead the graph database category, and we’re disrupting how organizations leverage their data to innovate and stay competitive. The Role: Are you at the end of your studies and want to immerse yourself in graph technology? We are now looking for students who want to do their Master’s Thesis alongside us at Neo4j! As part of Neo4j engineering in Malmö, you will work with a diverse team of talented colleagues worldwide. You will receive advice and continuous support from us - we are experts in graph technology and positioned to help you perform to the best of your ability. Past Thesis Topics: Multi-Stage Dashboard Generation over Graph Databases with LLMs This thesis investigates natural language–driven dashboard generation over graph databases, with a focus on maintaining alignment between user intent and generated outputs. While prior work in natural language to visualization has improved single-chart generation, producing coherent multi-view dashboards remains challenging, particularly for graph-structured data where relationships and query constraints are central. To address this, the work frames dashboard generation as a multi-stage workflow rather than a single-step task. A pipeline is designed that separates intent interpretation, schema grounding, planning, query generation, and validation, with selective human-in-the-loop clarification. The proposed approach is implemented for a Neo4j database and evaluated against a baseline generation method through a comparative dashboard study and an interactive workflow study. Results suggest that the proposed workflow improves perceived dashboard quality and user experience, particularly in coherence, usability, and intent alignment. The findings indicate that structuring generation as an inspectable and iterative process is a promising direction for dashboard generation. Force Directed Drawing Algorithms and Parameter Optimisation: Through my thesis I have implemented and compared some different graph drawing algorithms in addition to some methods to speed up the slow parts of these algorithms. These algorithms were then used to test what to the best of my knowledge is a novel approach to select parameter values for graph drawing algorithms. For this, I use methods similar to those used in Machine Learning to select parameter values and measure the utility of any set of parameters by creating my own utility function. I created this function by looking at objective measures of drawing quality that are commonly known, such as the number of edge crossings, along with the time it took to draw a given graph. The resulting method for parameter optimisation could find significant increases in the speed of graph drawing for several of my implemented drawing algorithms without compromising drawing quality. Furthermore, the approach is not specific to any parameter set, and can with some modification be applied to any graph drawing algorithm dependent on some constants. Modeling Profiling Data in a Graph Database for Performance Analysis: Benchmarking is an important part of the development process for any mission-critical application. By inspecting profiling data, developers can identify bottlenecks and performance regressions before they reach the customers. Neo4j runs an extensive benchmarking suite on its database, resulting in a huge collection of profiling data collected each week. These profiles are commonly visualized individually as flame graphs which are inspected manually. Finding patterns and differences among multiple profiles is difficult to do manually, due to the size and complexity of the data. We propose a framework for identifying bottlenecks and regressions by modeling the profiling data as call-stack trees in a graph database. We demonstrate the usefulness of the framework for cross-profile analysis such as time series analysis and aggregation-based methods. We conclude that there is much potential in this approach and our thesis can be used as a decision basis for organizations wanting to implement a similar framework. Using a graph database to model profiling data has many advantages and is suitable for the tree-like structure of the data. It makes the data more accessible and facilitates flexible querying in which the user can ask questions about the data and perform non-trivial aggregation. It has already aided Neo4j in the process of pinpointing the cause of some performance issues. The main disadvantage is the complexity involved in importing large quantities of data. Navigating Failures in Distributed Systems: A Comparative Study of Failure Detection Algorithms: Failure detection algorithms are used to identify unhealthy nodes in distributed systems. The goal of this study was to improve Neo4j’s use of failure detection algorithms by exploring two paths: either optimising their existing Lighthouse algorithm or by implementing a new algorithm. Existing algorithms were surveyed and the SWIM algorithm was implemented. A baseline was established and evaluated against parameter-optimized versions of SWIM and Lighthouse in a simulated network. The results show that Baseline is scalable and reliable but slow, Lighthouse is fast but less accurate, and SWIM is moderately fast and the least accurate but generates the least network load. In conclusion, the chosen parameters of a failure detector are to a great extent more important than the algorithm itself. Furthermore, to successfully optimise parameters it is crucial to have a scalable simulator and precise system requirements to manage the trade-off between speed, accuracy, and network load. Cache replacement policies and their impact on graph database operations: In this master thesis project, the page caching strategy of the Neo4j database is researched and attempted to be improved. Focusing on the eviction protocol of the page cache, several different algorithms are evaluated in both experimental prototyping using Python, and in the Neo4j database kernel. Using the measurements of the prototypes and the results of the Neo4j benchmarks conclude that the current page replacement policy is hard to beat with a different strategy. However, modifying the current page replacement policy by using a global instead of thread-local data structure and tuning parameters increased the hit rate and throughput. Furthermore, the measurements on the different implementations showed that the hit rate can be increased at the cost of some overhead, but implementing a complicated algorithm quickly increases the overhead and might decrease the throughput enough to make the algorithm ineffective. Randomly generating execution plans for bug detection in Neo4j: In recent years, Graph Database Management Systems(GDBMS) has increased in popularity for many use cases. One of the most popular GDBMS is Neo4j, which uses Cypher as a query language. With the increasing use of GDBMS in many business-critical applications, the need to test Neo4j and its competitors has become critical. One common practice for identifying bugs in a database system is using randomly generated tests, known as fuzz testing. Previously, this has been done by randomly generating queries, and several tools are currently available for this purpose. When executing a Cypher query, the query goes through several processing steps to ensure a correct result returns quickly. One of the intermediate structures used in the query processing is the execution plan, which details how the runtime should solve the query. In this thesis, we propose a novel approach to fuzz testing GDBMS by randomly generating execution plans. Our tool utilizes differential testing between different Neo4j runtimes, which allows for identifying incorrect results returned from one or more of the runtimes. These types of bugs are known as logic bugs. We can also identify situations when the Neo4j runtimes throw unexpected exceptions. The testing suite identified 20 bugs within the Neo4j, of which 11 were logic bugs. This approach to fuzz testing has proven helpful in identifying errors within the Neo4j runtimes, which previously received insufficient coverage by fuzz testing using queries. Other database management systems that utilize execution plans can benefit from the approach proposed by this thesis. The main drawbacks of this new approach are that it is not easily portable between different GDBMS and requires access to the query processing source code. We tackle challenges in: Concurrency and parallelism Distributed systems and fault tolerance Language design and type systems Performance tuning and benchmarking Cloud architecture and service design Site Reliability Engineering and cloud automation Continuous Integration and Continuous Delivery Graph algorithms and machine learning Does this topic sound interesting? Please apply! If you are applying as a group, please apply separately and indicate who you are applying together with in your Cover Letter. Project start Jan/Feb 2027 Why Join Neo4j? Neo4j is, without question, the most popular graph intelligence platform in the world. We have customers in every industry globally, and our products are a proven product/market fit. Joining our team is an opportunity to shape the future of data and analytics. Below are just a few exciting facts about Neo4j. Neo4j is one of the fastest-scaling technology companies in this industry. It recently surpassed $200M in annual recurring revenue (ARR), doubling its ARR over the past three years. Raised the biggest funding round in database history ($325M Series F). Backed by world-class investors like Eurazeo, GV (formerly Google Ventures), and Inovia Capital, Neo4j has raised over $600M in funding and is currently valued at over $2Bn. 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