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P.I. Works is the first company in the world to automate the management of a commercial 5G network. Our automated network management products and services empower Mobile Operators to accelerate network transformation and to drive network quality and efficiency on the path to 5G. These solutions have been deployed across 84 mobile network operators in 58 countries. We are looking for a 5G ZTE Engineer (both remote and onsite positions are available) to join our team. Job Responsibilities: Perform network optimization and network audit to meet customer requirements, Provide 5G deployment and optimization strategy support (Layer management and traffic steering strategy, NSA/SA, spectrum strategy, site densification, network sharing, TDD RN optimization, DSS, network slicing, spectral efficiency) for customers, Focus on executing audit and optimization of services, where you will be accountable for part of the solution and of the service process, Keep time, performance and quality according to company requirements and customer contracts, Provide an optimization solution for NR & LTE and trace the solution to collaborate with operators to implement it, Design and plan wireless site for network with simulation tool (added advantage), New feature testing, technical discussion, and integration troubleshooting support. Job Requirements 10+ years of experience in radio planning & optimization, Minimum 3 years of experience on 5G ZTE and 5 years of 4G, Hands on ZTE vendor algorithm & tools, NetNumen, UME, NetMax, NGI, Capability of KPIs analysis and optimization, Complaints handling, drive test log files analysis, Familiar with radio planning tool and optimization tools, able to use the tools to work in high efficiency way.

P.I. Works is the first company in the world to automate the management of a commercial 5G network. Our automated network management products and services empower Mobile Operators to accelerate network transformation and to drive network quality and efficiency on the path to 5G. These solutions have been deployed across 84 mobile network operators in 58 countries. We are looking for a 5G Huawei Engineer (both remote and onsite positions are available) to join our team. Job Responsibilities: Perform network optimization and network audit to meet customer requirements. Provide 5G deployment and optimization strategy support (Layer management and traffic steering strategy, NSA/SA, spectrum strategy, site densification, network sharing, TDD RN optimization, DSS, network slicing, spectral efficiency) for customers, Focus on executing audit and optimization of services, where you will be accountable for part of the solution and of the service process, Keep time, performance and quality according to company requirements and customer contracts, Provide an optimization solution for NR & LTE and trace the solution to collaborate with operators to implement it, Design and plan wireless site for network with simulation tool (added advantage), New feature testing, technical discussion, and integration troubleshooting support. Job Requirements 10+ years of experience in radio planning & optimization, Minimum 3 years of experience on 5G HUAWEI and 5 years of 4G, Hands on HUAWEI vendor algorithm & tools, iMaster, PRS, MAE, FMA, Capability of KPIs analysis and optimization, Complaints handling, drive test log files analysis, Familiar with radio planning tool and optimization tools, able to use the tools to work in high efficiency way.

Location: São Paulo, Brazil Workplace: remote At TechBiz Global , we are providing recruitment service to our TOP clients from our portfolio. We are currently looking for a skilled Sales executive to join one of our clients' teams. We are seeking a candidate with strong experience in financial services, wealth management, or fintech sales to build and grow the client base among HNWI and ultra-HNWI investors in São Paulo. The role involves business development, client relationship management, and execution of high-touch sales strategies to introduce client’s proprietary algorithmic trading models as premium investment solutions. Key Responsibilities Develop and execute a sales strategy to acquire and manage HNWI clients, family offices, and boutique wealth managers in São Paulo and broader Brazil. Promote client’s AI-driven algorithmic trading products as differentiated solutions for portfolio diversification, alpha generation, and risk management. Build and maintain long-term relationships with clients, ensuring high levels of satisfaction and retention. Conduct client presentations, portfolio demonstrations, and educational sessions to articulate the value of algorithmic trading. Collaborate with the marketing and product teams to customize offerings and improve client acquisition campaigns. Stay informed on local financial regulations, market trends, and competitive landscape to identify opportunities. Manage the end-to-end sales cycle, from lead generation to onboarding and after-sales client support. Meet and exceed quarterly revenue and client acquisition targets. Bachelor’s degree in Business, Finance, Economics, or related field (MBA/CFA a plus). 5+ years of experience in sales within private banking, wealth management, asset management, or fintech. Strong network and relationships with HNWI / family offices / investment advisors in São Paulo. Proven track record of meeting or exceeding sales targets in high-value financial products. Excellent presentation, negotiation, and relationship management skills. Knowledge of algorithmic trading, hedge funds, structured products, or alternative investments strongly preferred. Bilingual: Portuguese (native) and English (fluent). Spanish is a plus.

Location: Paris; London; New York; Toronto; Montreal Workplace: Remote WHO ARE WE? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! Role Overview: The integration team is responsible for developing and scaling machine learning algorithms and infrastructure for LLM post-training, with a focus on large-scale, distributed RL methods. We strive for excellence in both engineering and science by meticulously designing experiments and design docs. While tasks are assigned according to everyone’s expertise, there is a global team effort to write production code and support the team research efforts, depending on individual interests and organizational needs. In particular, this role aims to enhance the global quality of the post-training codebase by implementing new tools to ease and support research, optimizing post-training algorithms, and scaling distributed RL to unprecedented levels. Please Note: We have offices in London, Paris, Toronto, San Francisco, New York but we are also remote-friendly! Applicants for this role may work anywhere between UTC−06:00 and UTC+01:00. Key Responsibilities: - Design and write high-performing and scalable software for training models. - Develop new tools to support and accelerate research and LLM training. - Coordinate with other engineering teams (Infrastructure, Efficiency, Serving) and the scientific teams (Agent, Multimodal, Multilingual, etc.) to create a strong and integrated post-training ecosystem. - Craft and implement techniques to improve performance and speed up our training cycles, both on SFT, offline preference, and the RL regime. - Research, implement, and experiment with ideas on our cluster and data infrastructure. - Collaborate, Collaborate, and Collaborate with other scientists, engineers, and teams! Qualifications: - Extremely strong software engineering skills. - Value test-driven development methods, clean code, and strive to reduce technical debts at all levels. - Proficiency in Python and related ML frameworks such as JAX, Pytorch and/or XLA/MLIR. - Experience using and debugging large-scale distributed training strategies (memory/speed profiling). - [Bonus] Experience with distributed training infrastructures (Kubernetes) and associated frameworks (Ray). - [Bonus] Hands-on experience with the post-training phase of model training, with a strong emphasis on scalability and performance. - [Bonus] Experience in ML, LLM and RL academic research. This role is perfect for you if you: - Have a deep passion for quality work. - Enjoy tuning and optimising large LLM models. - Comfortable working with people with different levels of software engineering skills, from beginner to more advanced. - Comfortable diving into complex ML codebases to identify and resolve issues, ensuring the smooth operation of our systems. - Thrive in a fast-paced, technically challenging environment, where you can contribute your innovative ideas and solutions. Working Location: This role can be based remotely or from one of our office locations listed on the job description - there is no minimum in-office qualification requirement. We care most about hiring exceptional people regardless of locations, though please check the location listed on the posting for guidance around the core time zone or working hours alignment expected for the role. FULL-TIME EMPLOYEES AT COHERE ENJOY THESE PERKS: - A weekly lunch stipend of $75/£75 or equivalent in your local currency for lunch. - Full health and dental benefits, including a separate budget for mental health. - RRSP matching, 401K, Pension Scheme. - 100% Parental Leave top-up for up to 6 months, for either parent. - Annual enrichment benefits: Arts & culture, fitness/wellness, quality time, and a workspace improvement credit. Education & learning stipend for conferences, courses, and coaching. - 6 weeks of paid vacation (30 working days!) - Budget for traveling to other offices if you are remote, plus an annual company offsite. HOW AND WHERE WE WORK: - Cohere is remote-friendly, but we also have offices in Toronto, London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul with more opening soon. - For those in the office: a daily lunch program, plenty of snacks, and regular community and social events. - For those not near an office: a co-working benefit so you can work alongside others in your city. - Everyone receives a $500 home office stipend to set up your workspace properly. If any of the above doesn’t line up exactly with your experience, we still encourage you to apply. We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities. Should you require any accommodations during the recruitment process, please submit an Accommodations Request Form https://docs.google.com/forms/d/12a6IrLdF3kI2nonKSr4tiFuz18rLQbaeYV-JM9L4o9Q/edit, and we will work together to meet your needs. We may use AI-enabled tools to screen and assess applicants against the criteria for this position. This helps our recruiters identify potentially qualified candidates, but it doesn't limit the applications our recruiters may review or consider. Beware of Scams: Cohere will never ask for payment or third-party services (e.g., CV writing) as part of our hiring process. All legitimate roles are listed on the Cohere careers page and LinkedIn only, with all communications from Cohere employees coming from an @cohere.com or @cw.cohere email alias. If jobs are viewed on other sites then please verify these through our official careers https://cohere.com/careers page.

Location: Riyadh, Saudi Arabia Join Müller's Solutions as an AI / Computer Vision Engineer and be part of a dynamic team that is transforming industries through advanced technology. In this role, you will design, develop, and implement computer vision and AI models that address complex challenges and drive innovation in our products and services. Key Responsibilities: Develop and deploy state-of-the-art computer vision algorithms for various applications. Collaborate with product teams to understand requirements and translate them into technical specifications. Analyze large datasets to extract insights and improve model performance. Test and validate AI solutions to ensure high accuracy and reliability. Participate in code reviews and contribute to best practices in software development. Keep abreast of the latest advancements in AI and computer vision and integrate relevant technologies into existing systems. Research and present findings on new methodologies and approaches in the field. Requirements Qualifications: Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related field. Proven experience in AI and computer vision technologies, including deep learning frameworks (e.g., TensorFlow, PyTorch). Strong programming skills in Python and familiarity with OpenCV. Experience with data handling, preprocessing, and training machine learning models. Solid understanding of algorithms and data structures. Familiarity with cloud computing platforms and tools. Exceptional problem-solving skills and the ability to work in a collaborative environment. Strong communication skills to effectively convey complex ideas to both technical and non-technical stakeholders. Benefits Why Join Us: Opportunity to work with a talented and passionate team. Competitive salary and benefits package. Exciting projects and innovative work environment.

Location: Belgrade; London; Berlin We are seeking an experienced Backend Software Engineer to join our Crawler team. In this role, you will design, develop, and operate systems that ingest, process, and manage web-scale data in support of our next generation of advanced search technologies. This is a critical, high-impact engineering position, requiring expertise across both backend and frontend components of our data acquisition stack. Responsibilities - Take ownership of and lead projects focused on developing large-scale web crawlers, ingestion pipelines, and data processing systems. - Build, maintain, and optimize core backend and frontend components for crawler services, including storage, retrieval, and UI dashboards for data management. - Collaborate closely with Search and Infrastructure teams to ensure the reliable, high-quality ingestion and processing of billions of web pages. - Architect and implement fullstack features and scalable distributed systems that handle high-load and real-time data operations. - Rapidly iterate, experiment with novel approaches, and continuously enhance system performance, usability, and reliability. Qualifications - Minimum of 5 years of software development experience, with strong knowledge of data structures and algorithms in at least one of the following languages: Python, C++, Rust, or Go. - Experience with large-scale web crawlers is highly desirable. - Proven experience building, deploying, and optimizing high-load, distributed, and hardware-adjacent services. - Deep understanding of cloud infrastructure, with hands-on experience in Kubernetes (K8s) and AWS. - Demonstrated passion for writing clean, efficient, and scalable systems.

Location: Remote-Friendly (Travel-Required) | San Francisco, CA | Seattle, WA | New York City, NY 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. Anthropic is at the forefront of AI research, dedicated to developing safe, ethical, and powerful artificial intelligence. Our mission is to ensure that transformative AI systems are aligned with human interests. We are seeking a Research Engineer to join our Pre-training team, responsible for developing the next generation of large language models. In this role, you will work at the intersection of cutting-edge research and practical engineering, contributing to the development of safe, steerable, and trustworthy AI systems. Key Responsibilities: Conduct research and implement solutions in areas such as model architecture, algorithms, data processing, and optimizer development Independently lead small research projects while collaborating with team members on larger initiatives Design, run, and analyze scientific experiments to advance our understanding of large language models Optimize and scale our training infrastructure to improve efficiency and reliability Develop and improve dev tooling to enhance team productivity Contribute to the entire stack, from low-level optimizations to high-level model design Qualifications: Advanced degree (MS or PhD) in Computer Science, Machine Learning, or a related field Strong software engineering skills with a proven track record of building complex systems Expertise in Python and experience with deep learning frameworks (PyTorch preferred) Familiarity with large-scale machine learning, particularly in the context of language models Ability to balance research goals with practical engineering constraints Strong problem-solving skills and a results-oriented mindset Excellent communication skills and ability to work in a collaborative environment Care about the societal impacts of your work Preferred Experience: Work on high-performance, large-scale ML systems Familiarity with GPUs, Kubernetes, and OS internals Experience with language modeling using transformer architectures Knowledge of reinforcement learning techniques Background in large-scale ETL processes You'll thrive in this role if you: Have significant software engineering experience Are results-oriented with a bias towards flexibility and impact Willingly take on tasks outside your job description to support the team Enjoy pair programming and collaborative work Are eager to learn more about machine learning research Are enthusiastic to work at an organization that functions as a single, cohesive team pursuing large-scale AI research projects Are working to align state of the art models with human values and preferences, understand and interpret deep neural networks, or develop new models to support these areas of research View research and engineering as two sides of the same coin, and seek to understand all aspects of our research program as well as possible, to maximize the impact of your insights Have ambitious goals for AI safety and general progress in the next few years, and you’re working to create the best outcomes over the long-term. Sample Projects: Optimizing the throughput of novel attention mechanisms Comparing compute efficiency of different Transformer variants Preparing large-scale datasets for efficient model consumption Scaling distributed training jobs to thousands of GPUs Designing fault tolerance strategies for our training infrastructure Creating interactive visualizations of model internals, such as attention patterns At Anthropic, we are committed to fostering a diverse and inclusive workplace. We strongly encourage applications from candidates of all backgrounds, including those from underrepresented groups in tech. If you're excited about pushing the boundaries of AI while prioritizing safety and ethics, we want to hear from you! 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: $350,000 — $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. 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: 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: 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: 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. 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: Dublin, IE 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: Our Inference team is responsible for building and maintaining the critical systems that serve Claude to millions of users worldwide. We bring Claude to life by serving our models via the industry's largest compute-agnostic inference deployments.  We are responsible for the entire stack from intelligent request routing to fleet-wide orchestration across diverse AI accelerators. The team has a dual mandate: maximizing compute efficiency to serve our explosive customer growth, while enabling breakthrough research by giving our scientists the high-performance inference infrastructure they need to develop next-generation models. We tackle complex, distributed systems challenges across multiple accelerator families and emerging AI hardware running in multiple cloud platforms. Strong candidates may also have experience with: High-performance, large-scale distributed systems Implementing and deploying machine learning systems at scale Load balancing, request routing, or traffic management systems LLM inference optimization, batching, and caching strategies Kubernetes and cloud infrastructure (AWS, GCP) Python or Rust You may be a good fit if you: Have significant software engineering experience, particularly with distributed systems Are results-oriented, with a bias towards flexibility and impact Pick up slack, even if it goes outside your job description Want to learn more about machine learning systems and infrastructure Thrive in environments where technical excellence directly drives both business results and research breakthroughs Care about the societal impacts of your work Representative projects across the org: Designing intelligent routing algorithms that optimize request distribution across thousands of accelerators Autoscaling our compute fleet to dynamically match supply with demand across production, research, and experimental workloads Building production-grade deployment pipelines for releasing new models to millions of users Integrating new AI accelerator platforms to maintain our hardware-agnostic competitive advantage Contributing to new inference features (e.g., structured sampling, prompt caching) Supporting inference for new model architectures Analyzing observability data to tune performance based on real-world production workloads Managing multi-region deployments and geographic routing for global customers Deadline to apply: None. Applications will be reviewed on a rolling basis. 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: €235.000 — €295.000 EUR 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. 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: 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: 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: 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.