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Location: San Francisco, CA • New York, NY • United States Figma is growing our team of passionate creatives and builders on a mission to make design accessible to all. Figma’s platform helps teams bring ideas to life—whether you're brainstorming, creating a prototype, translating designs into code, or iterating with AI. From idea to product, Figma empowers teams to streamline workflows, move faster, and work together in real time from anywhere in the world. If you're excited to shape the future of design and collaboration, join us! Figma is seeking a versatile and experienced Machine Learning / AI Engineer to join our growing AI team, working at the intersection of applied machine learning, infrastructure, and product innovation. Whether you’re building intelligent search systems, crafting scalable data pipelines, or enhancing AI-powered creativity tools, your work will drive user productivity, shape new product experiences, and advance the state of AI at Figma. You’ll collaborate closely with engineers, researchers, designers, and product managers across multiple teams to deliver high-quality ML-driven features and infrastructure. This is a high-impact, cross-functional role where you’ll shape both foundational systems and user-facing capabilities. This is a full time role that can be held from one of our US hubs or remotely in the United States. What you’ll do at Figma: Design, build, and productionize ML models for Search, Discovery, Ranking, Retrieval-Augmented Generation (RAG), and generative AI features. Build and maintain scalable data pipelines to collect high-quality training and evaluation datasets, including annotation systems and human-in-the-loop workflows. Collaborate with AI researchers to iterate on datasets, evaluation metrics, and model architectures to improve quality and relevance. Work with product engineers to define and deliver impactful AI features across Figma’s platform. Partner with infrastructure engineers to develop and optimize systems for training, inference, monitoring, and deployment. Explore new ideas at the edge of what’s technically possible and help shape the long-term AI vision at Figma. We’d love to hear from you If you have: 5+ years of industry experience in software engineering, with 3+ years focused on applied machine learning or AI. Strong experience with end-to-end ML model development, including training, evaluation, deployment, and monitoring. Proficiency in Python and familiarity with ML libraries like PyTorch, TensorFlow, Scikit-learn, Spark MLlib, or XGBoost. Experience designing and building scalable data and annotation pipelines, as well as evaluation systems for AI model quality. Experience mentoring or leading others and contributing to a culture of technical excellence and innovation. While not required, It’s an added plus if you also have: Familiarity with search relevance, ranking, NLP, or RAG systems. Experience with AI infrastructure and MLOps, including observability, CI/CD, and automation for ML workflows. Experience working on creative or design-focused ML applications. Knowledge of additional languages such as C++ or Go is a plus, but not required. A product mindset with the ability to tie technical work to user outcomes and business impact. Strong collaboration and communication skills, especially when working across functions (engineering, product, research). At Figma, one of our values is Grow as you go. We believe in hiring smart, curious people who are excited to learn and develop their skills. If you’re excited about this role but your past experience doesn’t align perfectly with the points outlined in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Pay Transparency Disclosure Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. Figma offers equity to employees, as well as a competitive package of additional benefits, including health, dental, and vision coverage; retirement benefits with company contributions; parental leave and reproductive or family planning support; mental health and wellness benefits; and paid time off. Figma provides paid sick leave, holidays, and other leave benefits in compliance with applicable federal, state, and local laws, including the requirements of the Washington Minimum Wage Act and related regulations. Exempt employees are eligible for employer‑provided paid flexible PTO in addition to flexible paid sick leave. PTO is subject to manager approval. Additional benefits may include company recharge days, cell phone and home internet reimbursements, and a number of lifestyle spending accounts. Figma also offers sales incentive compensation for most sales roles and an annual bonus plan for eligible non-sales roles. All compensation and benefits are subject to applicable plan terms and may be modified by Figma at any time, consistent with applicable law. Annual Base Salary Range: $153,000 — $376,000 USD At Figma we celebrate and support our differences. We know employing a team rich in diverse thoughts, experiences, and opinions allows our employees, our product and our community to flourish. Figma is an equal opportunity workplace - we are dedicated to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity/expression, veteran status , or any other characteristic protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to accommodations-ext@figma.com . These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. Examples of accommodations include but are not limited to: Holding interviews in an accessible location Enabling closed captioning on video conferencing Ensuring all written communication be compatible with screen readers Changing the mode or format of interviews To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates keep their cameras on during video interviews. Additionally, if hired you will be required to attend in person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with Figma's Candidate Privacy Notice . Application limits: To help candidates focus on the opportunities most relevant to their skills and experience, Figma limits the number and frequency of applications. These limits apply to all roles: Candidates may submit up to 5 applications during any rolling 30-day period. Candidates may not reapply to the same role while an application is active or within 90 days of receiving a rejection. Once the applicable days has passed, candidates are welcome to apply again.

Location: San Francisco, CA • New York, NY • United States Figma is growing our team of passionate creatives and builders on a mission to make design accessible to all. Figma’s platform helps teams bring ideas to life—whether you're brainstorming, creating a prototype, translating designs into code, or iterating with AI. From idea to product, Figma empowers teams to streamline workflows, move faster, and work together in real time from anywhere in the world. If you're excited to shape the future of design and collaboration, join us! At Figma, infrastructure is at the heart of everything we build. As a Software Engineer on our Infrastructure team, you’ll help design, build, and operate the systems that power our real-time collaborative design tools used by millions of people worldwide. We’re scaling fast, and we’re looking for experienced distributed systems engineers across a variety of teams. Whether you’re passionate about storage, compute orchestration, developer tooling, networking, or real-time data systems, this role offers an opportunity to shape the technical foundation of one of the most beloved design platforms in the world. This is a full time role that can be held from one of our US hubs or remotely in the United States. What you’ll do at Figma: Design, build, and maintain scalable and reliable infrastructure systems that support product innovation and user collaboration at scale Architect and evolve distributed systems including storage platforms, streaming infrastructure, and compute orchestration Improve developer experience by building internal platforms, CI/CD systems, build tools, and APIs Collaborate across product and infrastructure teams to design secure, maintainable, and performant systems Participate in shaping platform strategy, roadmaps, and engineering best practices across the organization Debug and resolve complex production issues that span services and layers of the stack Mentor engineers and foster a culture of collaboration, inclusivity, and technical excellence We’d love to hear from you if you have: 5+ years of Software Engineering experience, specifically in backend or infrastructure engineering Deep understanding of distributed systems concepts such as sharding, replication, consistency, and eventual convergence Experience with cloud-native environments (AWS, GCP, or Azure), infrastructure-as-code, and container orchestration Proficiency in languages such as Go, TypeScript, Python, Rust, or Ruby Strong system design skills and a track record of architecting resilient production systems Excellent communication skills, with experience collaborating across teams and mentoring others While it’s not required, it’s an added plus if you also have: Experience scaling storage platforms (e.g., Postgres, Redis, S3, DynamoDB) or operating streaming systems like Kafka Background in traffic management, DDoS mitigation, or service mesh technologies (e.g., Envoy, Istio) A history of developing complex, realtime distributed systems at scale A passion for building developer productivity tools, including development environments, CI/CD pipelines, and build systems Experience with evolving large-scale, shared developer platforms to improve reliability and developer velocity Strong problem-solving skills and a bias for action—especially when tackling high-impact, gritty challenges Experience using AI-assisted development tools (e.g., GitHub Copilot, ChatGPT, Claude) to write, debug, and optimize code At Figma, one of our values is Grow as you go. We believe in hiring smart, curious people who are excited to learn and develop their skills. If you’re excited about this role but your past experience doesn’t align perfectly with the points outlined in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Pay Transparency Disclosure Job level and actual compensation will be decided based on factors including, but not limited to, individual qualifications objectively assessed during the interview process (including skills and prior relevant experience, potential impact, and scope of role), market demands, and specific work location. Figma offers equity to employees, as well as a competitive package of additional benefits, including health, dental, and vision coverage; retirement benefits with company contributions; parental leave and reproductive or family planning support; mental health and wellness benefits; and paid time off. Figma provides paid sick leave, holidays, and other leave benefits in compliance with applicable federal, state, and local laws, including the requirements of the Washington Minimum Wage Act and related regulations. Exempt employees are eligible for employer‑provided paid flexible PTO in addition to flexible paid sick leave. PTO is subject to manager approval. Additional benefits may include company recharge days, cell phone and home internet reimbursements, and a number of lifestyle spending accounts. Figma also offers sales incentive compensation for most sales roles and an annual bonus plan for eligible non-sales roles. All compensation and benefits are subject to applicable plan terms and may be modified by Figma at any time, consistent with applicable law. Annual Base Salary Range: $153,000 — $376,000 USD At Figma we celebrate and support our differences. We know employing a team rich in diverse thoughts, experiences, and opinions allows our employees, our product and our community to flourish. Figma is an equal opportunity workplace - we are dedicated to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity/expression, veteran status , or any other characteristic protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to accommodations-ext@figma.com . These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. Examples of accommodations include but are not limited to: Holding interviews in an accessible location Enabling closed captioning on video conferencing Ensuring all written communication be compatible with screen readers Changing the mode or format of interviews To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates keep their cameras on during video interviews. Additionally, if hired you will be required to attend in person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with Figma's Candidate Privacy Notice . Application limits: To help candidates focus on the opportunities most relevant to their skills and experience, Figma limits the number and frequency of applications. These limits apply to all roles: Candidates may submit up to 5 applications during any rolling 30-day period. Candidates may not reapply to the same role while an application is active or within 90 days of receiving a rejection. Once the applicable days has passed, candidates are welcome to apply again.

Location: Malta At Betsson Group, we're building the best native mobile experience in the iGaming industry — and we want you to be a key part of it. We’re looking for a QA Engineer (Mobile) to join our Mobile Apps team and play a central role in ensuring our apps are smooth, stable, and delightful to use. You’ll work in a collaborative, agile environment where ownership, innovation, and quality are at the heart of everything we do. What You’ll Be Doing Perform both manual and automated testing across iOS and Android platforms. Collaborate closely with developers, designers, product owners, and fellow QA engineers to deliver high-quality features. Define and refine test strategies for new functionality and release cycles. Investigate, reproduce, and track bugs using Jira or similar tools. Develop and maintain automation tests using Appium and Java. Validate app interactions with backend services via REST APIs . Participate in Agile ceremonies, ensuring quality is embedded from the start. Contribute to continuous improvement of QA processes and mobile test frameworks. Great if you have ISTQB or equivalent certification. Experience in iGaming. What We’re Looking For Bachelor’s degree in Computer Science, Engineering , or a related field. 5+ years of QA experience , with at least 3 years focused on mobile testing . Solid experience with iOS and Android platforms , their guidelines, and best practices. Strong hands-on experience with Appium and Java . Familiarity with REST API testing and backend integration flows. Experience with CI/CD tools like Git, Jenkins, Bitrise, or similar. ISTQB certification or equivalent QA training. Background in iGaming or fast-paced, high-scale environments is a big plus. Proactive, detail-oriented, and a clear communicator in English . What we offer Much like a rollercoaster, life at Betsson Group is fast-paced, full of twists and turns, and always exciting. With more than 2,800 colleagues representing over 75 nationalities across a global network of offices - including 1,500 at our operational headquarters in Malta - every day brings new challenges and opportunities to grow. It may not be for the faint-hearted, but if you thrive on innovation, enjoy pushing boundaries and want to be part of a diverse, international team, then you’ll fit right in at Betsson. Challenge Accepted? If you are interested to learn more, please apply with your CV in English. By submitting your application, you understand that your personal data will be processed as set out in our Privacy Policy

Location: Limassol, Cyprus Are you looking for the next professional opportunity, that will challenge you and advance your career? Join our team now! Tickmill is looking to hire a Backend Developer (.NET) to join our rapidly expanding team. Join a high-caliber team and contribute to its success with your passion, hard-work and positive attitude. About Tickmill Founded in 2014, Tickmill has grown into a global financial services group of 300+ people, with regulated entities across major jurisdictions and a client base built on trust in active trading, spanning CFDs, Futures and Options. That foundation: capital, licensing, infrastructure and an established international client base ,is what makes the next stage possible: building genuinely new product lines in Stocks, ETFs, Investing, Wealth and Prediction Markets, aimed at a much larger consumer audience than our existing trading business alone. What does the role look like? The Backend Developer (.NET) will have the opportunity to: Design, develop and support backend services with a focus on integrations with other systems, services. Support and improve our quality processes by developing automated unit tests and performing code reviews. Collaborate with internal/external teams throughout the integration process. Identify, correct bottlenecks and fix bugs. Help maintain code quality, organization, and automatization. Stay up to date with new technology trends, applications, and protocols. What do you need to succeed in this role? Degree in Computer Science, Engineering, or a related field. Good understanding of object-oriented programming and design patterns. 3+ years of software development experience, ideally in C#. Ability to assess, troubleshoot and debug integration issues. Good understanding of code versioning tools. Excellent analytical, and problem-solving skills. Proficient in English language with excellent written and verbal communication skills. It will be considered as a plus if you have: Experience working in cloud infrastructures like AWS or Azure. Understanding of CI/CD, unit testing, integration testing. Experience with Relational Database Management Systems. Experience within the financial markets Industry on a similar IT field. By joining us, you can expect: A Unique Opportunity for a career in a global, fast-growing company. Attractive remuneration package based on qualifications and experience (including 13th salary and Discretionary Bonuses to reward exceptional performance). Opportunities to learn and grow through our “ Employee Training & Development program”. Medical Insurance Cover , which includes Outpatient, Inpatient, and Dental Care. Multiple events to bond with the team and the group through Quarterly/Semestrial Team Activities for all the Company. Participation in our welfare investment and savings plan through our Provident Fund Scheme. Birthday and Loyalty benefits . Collaboration with SportBenefit. What to expect from our recruitment process: First interview with hiring managers or an HR call Task Assessment Technical Interview or home assignment Final interview with top management Make your next Career step and apply NOW! * Due to the great number of applications, we receive for each of our open vacancies, we are unable to respond on an individual basis.

Location: Riyadh, Saudi Arabia Müller's Solutions is on the lookout for a skilled PAG Developer to join our dynamic team. As a PAG Developer, you will be responsible for developing and maintaining high-performance applications, focusing on ensuring robust and efficient backend solutions. You will work alongside other developers and stakeholders to translate requirements into innovative solutions that meet business needs. Key Responsibilities: Design, develop, and sustain applications utilizing PAG (Programming Application Generation) methodologies and frameworks. Work collaboratively with project managers and team members to collect requirements and comprehend business logic. Create efficient, reusable, and scalable code while adhering to industry best practices and coding standards. Perform comprehensive testing and debugging of applications to guarantee high-quality results. Integrate applications with diverse data sources and third-party services. Keep abreast of the latest trends, technologies, and coding practices in the industry. Engage in code reviews to uphold high-quality code standards and foster knowledge sharing among team members. Provide continuous support and maintenance for existing applications. Design and develop Pega applications using Pega PRPC. Implement business process flows, case management, and decision rules. Integrate Pega applications with external systems using REST/SOAP APIs. Configure user interfaces, reports, and data models within the Pega platform. Ensure adherence to best practices regarding coding, performance optimization, and system architecture. Collaborate with QA and fellow developers to deliver a quality solution. Requirements Requirements: Bachelor's degree in Computer Science, Software Engineering, or a related discipline. At least 3 years of demonstrated experience as a Developer, with a preference for expertise in PAG technologies. Proficient programming skills in languages relevant to PAG development. Experience in database management and optimization, particularly with SQL databases. Knowledge of web development technologies and frameworks, such as HTML, CSS, and JavaScript. Familiarity with software development methodologies, including Agile and Scrum practices. Exceptional problem-solving skills and critical thinking abilities. Effective communication and teamwork skills for productive collaboration with cross-functional teams. Hands-on experience with Pega PRPC, Pega BPM, and case management processes. Understanding of Pega integration tools such as SOAP, REST, JMS, etc. Familiarity with Pega Designer Studio, including decision rules and data modeling techniques. Strong capabilities in debugging and troubleshooting. Pega CSA (Certified System Architect) certification is often required; CSSA (Senior System Architect) certification is a plus. Preferred Qualifications: Experience with cloud services and deployment strategies. Familiarity with CI/CD tools and automated testing frameworks. Knowledge of best practices in application security and performance optimization. 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: 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 We are looking for a Senior Staff Engineer/Engineering Director who will be responsible for the design, deployment, optimisation, and full lifecycle management of enterprise-level cloud database platforms. Lead the implementation of multi-cloud architectures for Alibaba Cloud and AWS databases, ensuring high availability, high performance, and cost optimization. What You'll Be Doing Database Architecture Design & Optimization Design, deploy, and optimize cloud databases on Alibaba Cloud (RDS, PolarDB, Redis, MongoDB) and AWS (RDS, Aurora, ElastiCache, DynamoDB). Select appropriate database types (relational/NoSQL/NewSQL) and service models (managed services vs. self-built clusters) based on business requirements. Operations & Monitoring Implement high availability (HA) and disaster recovery (DR) solutions, such as Alibaba Cloud cross-zone deployments, AWS Multi-AZ, and cross-region replication. Monitor database performance and health using cloud-native tools (Alibaba Cloud CloudMonitor, AWS CloudWatch) and third-party tools (Prometheus, Grafana). Performance Tuning & Incident Resolution Analyze slow queries, lock conflicts, and resource bottlenecks (CPU/IO/memory), optimizing SQL statements and index designs. Rapidly resolve production database incidents (e.g., replication lag, connection pool exhaustion, storage scaling). Security & Compliance Manage database access controls via Alibaba Cloud RAM policies and AWS IAM roles to ensure data security. Perform regular database upgrades and audit log analysis to comply with GDPR, Multi-Tier Cloud Security Certification (MLPS), and other regulations. Automation & Cost Management Automate database deployment and operations using Terraform, Ansible, or cloud-native tools (Alibaba Cloud ROS, AWS CloudFormation). Optimize cloud costs via auto-scaling, reserved instances, and storage tiering (e.g., AWS S3 Glacier). Cross-Team Collaboration Support development teams in database design reviews, SQL code standardization, and DevOps processes (e.g., database change management in CI/CD). Team Management Manage a team of DBAs to ensure timely completion of projects and efficient resolution of incidents. What We Look For In You Technical Skills Expertise in database services of at least one major public cloud (Alibaba Cloud or AWS), with familiarity in the other. In-depth understanding of core principles of mainstream databases (MySQL, PostgreSQL, Redis) and advanced SQL optimization/troubleshooting skills. Experience with database migration tools (AWS DMS, Alibaba Cloud DTS) and cross-cloud synchronization solutions. Experience Requirements 5+ years of DBA experience, including at least 2 years managing public cloud databases. Hands-on experience with large-scale (TB-level) databases, sharding, and read/write splitting. Experience leading cloud database migrations, DR drills, or hybrid cloud projects is preferred. Soft Skills Strong documentation skills for creating SOPs and contingency plans. Excellent communication skills to coordinate development, operations, and business teams. Certifications & Education Alibaba Cloud ACP/ACE (Database) or AWS Certified Database – Specialty certifications preferred. Bachelor’s degree or higher in Computer Science, Software Engineering, or related fields. 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! 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 Workplace: OnSite ABOUT US Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do. Sierra was co-founded by Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/ who first met while working together at Google over 20 years ago. Bret currently serves as Chairman of the Board of Open AI. Previously, he was co-CEO of Salesforce and CTO of Facebook. Clay spent 18 years at Google, where he most recently led Google Labs. SECURITY ENGINEER Security Engineering builds the foundations that let Sierra deliver powerful AI agents while protecting customer data and trust. We partner across product and platform to make security, privacy, and safety core product capabilities and secure defaults. WHAT YOU’LL DO Our work spans several security domains. You’ll go deep where your strengths and interests are strongest, with opportunities to explore new areas alongside the team. Build the Foundations of Trust. Design and ship systems and controls that make Sierra secure by default — spanning product security, infrastructure security, enterprise security, identity, and detection and response. You’ll work across all layers of our platform to identify risk, strengthen architectures, and build durable defenses. Own Cross-Cutting Systems. Partner with product, platform, and infrastructure team to threat model designs, review code and architectures, and implement and evolve Sierra’s security primitives. You’ll make pragmatic design trade-offs between usability, performance, reliability, and security. Find and Reduce Real Risk. Identify vulnerabilities, investigate suspicious behavior, and improve detections and response workflows across applications, cloud infrastructure, identity, endpoints, and internal systems. Turn what you learn into systemic fixes and controls that prevent entire classes of issues. Automate and Scale Security Workflows. Create developer-friendly tooling to reduce risk and friction — whether through automating security checks in CI/CD, building secure paved paths, improving vulnerability discovery, or instrumenting high-signal detection and response.     WHAT YOU’LL BRING Deep Security Expertise. Strong security fundamentals and depth in at least one domain, such as product security, platform or cloud security, enterprise security, identity, detection and response, or offensive security. You can apply that expertise across unfamiliar systems and emerging threats. Product and Platform Mindset. You care about building secure, scalable systems that enable, not block, innovation. You work closely with teams across Sierra to make trade-offs clear and help them move quickly without sacrificing trust. Software Engineering and Systems Thinking. You’re comfortable reading and writing code, understanding how production systems fit together, and building pragmatic software solutions to security problems. You can reason about system design and contribute to APIs, services, and security controls, with an eye toward reliability and maintainability. Curiosity and Ownership. You take ambiguous, cross-cutting problems from first principles to production and go deep when needed: threat modeling a distributed system, tracing an authorization decision across services, or following an investigation from weak signal to root cause. You define the problem, align partners, build the solution, and own it in production.     EVEN BETTER IF… - You’ve worked across more than one of product security, infrastructure security, enterprise security, detection and response, or offensive security. - You’ve built security frameworks, platforms, or solutions that engineers and responders rely on to prevent, detect, investigate, and remediate security issues at scale. - You have exposure to AI systems or care about designing secure-by-default LLM applications and agentic systems. - You think like an attacker — you naturally ask “what could go wrong?” when reviewing designs or investigating systems. You’ve found or fixed real security issues in production. - You thrive in 0→1 environments, where foundational systems have to balance speed, reliability, and trust. OUR VALUES - Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work. - Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it. - Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve. - Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time. - Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements. WHAT WE OFFER We want our benefits to reflect our values and offer the following to full-time employees: - Flexible (unlimited) paid time off - Medical, dental, and vision benefits for you and your family - Life insurance and disability benefits - Retirement plan dependent on country of employment - Parental leave - Fertility and family building benefits - Lunch, as well as delicious snacks and coffee to keep you energized when working onsite - Discretionary benefit stipend giving people the ability to spend where it matters most - Free alphorn lessons These benefits are further detailed in Sierra's policies, may vary by region and employment type, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies. BE YOU, WITH US We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply through the link on this page even if your experience doesn't precisely match the job description. Sierra is a proud equal opportunity employer. All qualified applicants will receive consideration for employment without regard to any characteristic protected by applicable federal, state or local laws, including veteran status and disability status. Hiring decisions are made by people, based on merit. If you need a reasonable accommodation for a disability, a religious practice, pregnancy or any related condition at any point in the application or interview process, contact us at accommodations@sierra.ai. Requests are handled confidentially and do not affect your candidacy. We will consider qualified applicants with arrest and conviction records in accordance with applicable fair chance laws.

Location: Remote About GiveDirectly What if the most effective way to fight poverty was also the simplest: give people money and trust them to decide what they need? Since 2011, GiveDirectly has proven that idea at scale. We’ve delivered more than $1B in cash directly to 2+ million people living in poverty and crisis across 15 countries, and rigorous research shows the results: healthier kids, stronger businesses, sturdier homes, and more resilient families and local economies. Cash is now widely recognized as one of the most scalable, cost-effective, and dignified forms of aid. Our ambition goes beyond our own programs. We want cash to become the benchmark for aid, much as the index fund became the benchmark for investing, so that every aid dollar is held to one question: is this doing more good than giving the money directly to people living in poverty? We’re growing fast, and this is a rare and important moment to join. We expect to hit $1B in revenue in 2026 with significant growth forecast for 2027. At the same time we are building a new technology stack and operating model designed for a roughly 10x change in scale, and we are actively pursuing partnerships with major funders to move even more money in bigger ways, to people who need it. We are known for our extensive integration of technology into field processes; our quantitative approach to performance measurement; and our commitment to rigorous, independent, experimental evaluation of our impact, with multiple Randomized Control Trials completed and others in progress. How we work Our team spans 20+ countries and 69 languages. Our culture is candid, analytical, and non-hierarchical. We expect high ownership and give people real responsibility early. Our values are central to how we hire, work, and grow, and they are deliberately opinionated: Recipients first. Recipients’ preferences come before those of donors or ourselves. Team next. We optimize for organizational success, not individual success. Be proactively candid. We say what we believe and share information openly. Create positive energy. We aim to be a source of energy for colleagues, not a drain. Think rigorously; act quickly. We reason from first principles, then act rather than debate. Know yourself and grow. We own our imperfections and seek feedback to grow. Accept reality. Propose solutions. We focus on what can change and bring solutions, not just problems. Be productively ambitious. We take risks for step-change impact, not incremental progress. If they describe how you like to work and they energize you, this could be a great fit. Want to learn more? Read and listen: We are one of Time100’s Most Influential Companies of 2026, and our work has been covered by The Economist , NPR , TED , and The Washington Post . We're now preparing to deliver billions of dollars a year to people in extreme poverty, if funding allows. Read our CEO's essay on what that will take. You must be based in one of the countries on this list and must overlap with East Africa Time and US Eastern Time (8am-6pm) by at least 3 hours. As an example, 6PM East Africa Time is 11AM US Eastern time in the summer and 10AM in the winter. In practice, if you are in the Eastern US timezone, that means being regularly available for 8AM meetings and some 7AM ones. We know people have commitments like school drop-offs, so you’re encouraged to set a schedule that works for you—as long as there’s sufficient overlap with the team. We are unable to sponsor or take over sponsorship of employment Visas in the U.S. or U.K. at this time. About this role Technology plays a central role in how GiveDirectly delivers cash—whether that’s identifying recipients in hard-to-reach places, sending payments quickly after disasters, or powering the platforms our donors use to give. We’re hiring a Senior Software Engineer to help build the systems behind this work. Our engineering team still operates like a startup within GiveDirectly—lean, fast-moving, and high-autonomy. You’ll lean into product thinking, help shape the roadmap, and collaborate closely across disciplines to solve real-world problems. The specific team you’ll join is still being finalized—it could be: Our Programs Engineering team (getting cash in the hands of people experiencing extreme poverty), Our Fundraising Engineering team (raising more money for recipients), or Our International Rapid Response team (getting cash to disaster-affected communities within 5 days of a crisis—anywhere in the world) No matter the team, you’ll play a central role in scaling our impact: getting more money, to more people, more efficiently. This is a hands-on role with real ownership. You’ll help shape architecture, ship production-ready code, and work side-by-side with teammates across product, data, and operations. We’re looking for someone excited to wear multiple hats, move quickly, and define what great engineering looks like in a mission-driven org Level: Senior Software Engineer Travel Requirement: Must be able to travel ~1-2 times per year to one of our countries of operation for team retreats or field visits. What you’ll do: Design and build scalable, reliable systems that power our core operations—whether that’s donor platforms, systems that deliver payments directly to recipients, or crisis response tools reaching hundreds of thousands of people globally. Own end-to-end development of new features and services, from architecture through deployment and monitoring. Improve our developer workflows by strengthening CI/CD pipelines, reducing manual steps, and increasing test coverage. Collaborate with cross-functional teams (product, ops, data) to understand real-world needs and ship tools that directly support program delivery in the field. Debug and resolve production issues across our stack, with a focus on root cause analysis and long-term fixes. Advocate for sustainable engineering practices, including testing, documentation, and monitoring Help shape our tech roadmap with an eye toward scale, maintainability, and recipient experience What you’ll bring: Exceptional alignment with GiveDirectly Values and active demonstration of our core competencies: emotional intelligence, problem solving, project management, follow-through, and fostering inclusivity. We welcome and strongly encourage applications from candidates who have personal or professional experience in the low-income and/or historically marginalized communities that we serve. Language Requirement: English 4+ years of industry experience creating production-caliber software and systems Experience with backend architecture: databases, cloud services, APIs Experience building infrastructure to deploy software Experience with strongly-typed, object-oriented programming such as Java, C#, Go, etc. and scripting languages such as Python, Ruby, etc. High degree of ownership and autonomy - you proactively advocate for ways to improve systems and constantly leave our codebase in a better state than you found it Strong analytical skills and communication - able to break down complex problems, describe technical trade-offs, and collaborate with cross-functional partners (e.g. technical program managers, product managers) Bonus: Experience using Python and AWS in a production environment Bonus: experience with payments/financial software and/or experience with microservice/serverless architecture Compensation At GiveDirectly, we strive to pay our employees generously and equitably. We use an accredited third party salary aggregator to calculate what we believe to be competitive pay based on role, location, and cost of living. We also have a no negotiation policy to ensure we are paying staff equitably across roles. Read more about our compensation philosophy here . Unless otherwise noted, the benefits stipend may be used to cover benefits or taken as additional taxable income. United States Base Salary: $181,130 Bonus at Target Performance: 15% (~$27,170, with potential for upside. For reference, with the organization's current performance multiplier, this amount would be ~$31,789 in 2025) Estimated Total Compensation at Target: $208,300+ Annual Benefits Stipend: $21,393 United Kingdom Base Salary: £124,370 Bonus at Target Performance: 15% (~£18,656, with potential for upside. For reference, with the organization's current performance multiplier, this amount would be ~£21,827 in 2025) Estimated Total Compensation at Target: £143,026+ Annual Benefits Stipend: £2,760 Kenya Base Salary: $112,350 Bonus at Target Performance: 15% (~$16,853, with potential for upside. For reference, with the organization's current performance multiplier, this amount would be ~$19,717 in 2025) Estimated Total Compensation at Target: $129,203+ Annual Benefits Stipend: $8,453 This role is fully remote, so if you are not based in the US, UK or Kenya, we will share an estimated salary benchmark for the country you are based in during the hiring process. Why work at GiveDirectly? At GiveDirectly, we work to ensure that you have everything you need to excel in your role and on your team, including: A positive and supportive team with opportunities for advancement A demonstrated commitment to helping all staff develop and grow A competitive salary, including bonus A robust health benefits plan (exact details will vary by country) Unlimited PTO (that we encourage staff to take!) Desk allowance and flexible work location About this specific hiring process Take-home coding assignment Live Coding (60 mins) Systems Design (60 mins) Project Deep Dive + Behavioral (60 mins) *It’s possible that there will be adjustments to this interview process. Any changes will be communicated to you during the process. #LI-REMOTE Working at GiveDirectly GiveDirectly is an Equal Opportunity Employer. All qualified applicants are considered for employment without regard to the person’s race, color, religion, national origin, sex, sexual orientation, age, marital status, veteran status, disability, or any other characteristic protected by applicable law. Flagging for US applicants: We invite you to " Know Your Rights " as an applicant. Commitment to Safeguarding As a global organization working with communities to eliminate extreme poverty, GiveDirectly takes the safeguarding of its recipients, staff, and partners seriously. To that end, GiveDirectly is a member of the Misconduct Disclosure Scheme , and will systematically check with previous employers about any abuse or misconduct related matters involving potential new hires. We may also employ other robust pre-hire screens, including in-depth reference checks, criminal background checks, and sanctions screens. These efforts help us continue to build and maintain trust with the communities we work with, and prevent abuse to our recipients and staff. **GD is committed to observing all local, national and international laws that protect people and basic human rights of all. GD is committed to a policy of “zero tolerance when it comes to preventing,  reporting, or responding to any form of abuse or  exploitation.” and expects anyone who works for GD to uphold the protection and safeguarding of our recipients as a priority.** Reasonable Accommodations We are committed to fostering an inclusive and accessible work environment. If you require any accommodations during the application or interview process, or to perform the essential functions of the role, please email us at careers@givedirectly.org with the email subject “Accommodation Needed”. We will work with you to ensure reasonable accommodations are made to support your needs. Want to put your best foot forward on your GiveDirectly application? Take a look at our Candidate Application Prep Guide !

Location: United States Workplace: Remote Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry. At Blockstream, we’re building solutions on Bitcoin that will disrupt the existing financial system. We imagine a world where individuals and businesses can easily access a global, permissionless system to secure their money, use it every day, and invest it or put it to work. In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer-2 projects like Liquid and Core Lightning, to end-user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future. Blockstream is looking for Software Engineers to work on our enterprise custody solution. You’ll design and maintain scalable end-to-end systems that serve APIs and SDKs, and work on everything from database architecture to cloud-based deployments.  What You’ll Be Doing (Responsibilities): - Design, develop, and maintain scalable end-to-end systems that serve APIs and SDKs. - Full stack software development, from database architecture to cloud-based deployment. - Optimize system performance and security to support high-availability applications. - Collaborate with cross-functional teams, including front-end developers, product managers, and hardware engineers to deliver seamless solutions. - Implement best practices in software development, including CI/CD, automated testing, and code reviews. - Research and integrate emerging technologies to enhance security and system efficiency. - Troubleshoot and resolve complex software issues in a fast-paced development environment. - Mentor junior developers and contribute to team knowledge-sharing efforts. What We Look For In You (Required Qualifications): - 5+ years of experience in full-stack software development, with a focus on backend engineering. - Proficiency in backend technologies such as C++, Python, Rust, Node.js. - Strong experience in designing and building RESTful APIs and SDKs. - Hands-on experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). - Deep understanding of database technologies, including SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). - Familiarity with authentication and security best practices, including OAuth, JWT, encryption, and access control. - Experience with CI/CD pipelines, automated testing, and DevOps tools. - Strong problem-solving skills and ability to work independently or as part of a team. - Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders. Nice To Haves (Preferred Qualifications): - Experience with Bitcoin, blockchain technology, or cryptography. - Open-source software development experience. - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience). - Experience with system/software architecture.   🔒 Stay Safe from Job Scams All official Blockstream communication will come from an @blockstream.com email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact us at hr@blockstream.com. Learn more about avoiding job scams here https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first.

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: Munich, Germany Our client is a leading consulting firm specializing in digital strategy and transaction advisory. Known for its innovative approach and collaborative culture, the company works closely with top-tier private equity firms and businesses across various industries. With offices in Munich, Berlin, Hamburg, and London, our client is dedicated to driving digital transformation and delivering high-impact solutions that shape the future of the digital landscape. What is looked for: Driving the business development and sales strategy for their Advanced Data Analytics team, identifying new business opportunities and build long-term customer relationships. Representing the company as a thought leader for Data & AI at conferences, events and panels, expanding their network and positioning their analytics services in the market. Developing and presenting customised data-driven strategies that help companies achieve their business goals with advanced analytics and AI. Being responsible for sales success, market positioning and scaling, including pitching, strategic customer acquisition and development of new service offerings. Co-leading a team of high potentials, actively driving their development and ensure the continuous expansion of their analytics expertise. Supporting targeted recruiting activities in close cooperation with the People & Culture team, to attract top talent for the Advanced Data Analytics team. Working closely with internal and external stakeholders, developing strategic partnerships and ensure that their solutions deliver real business value. Requirements Holding a university degree with excellent grades in computer science, business, economics, math or any other analytical science discipline (Master's degree, MBA or PhD of advantage). Having at least 5 years of professional experience in data science, business analytics, data technology consulting, product management or development in these areas. Having proven experience in team coordination and team leadership. Having experience in web, marketing and sales analytics as well as strong knowledge of the respective data sources such as Google Analytics and other Google Tools, Salesforce, MS Dynamics, Hubspot etc. Showing expertise with Tableau, Power BI and/ or other market-leading analytics software as well as strong Excel and analytical skills. Bringing expertise on typical analytics tech stacks, languages, and frameworks (e.g., Python, R, SQL, Scikit-Learn, JupyterLab) - knowledge on typical software development workflows (e.g., Git, Jira, Confluence, CI/CD) and basic cloud experience (AWS, Azure, GCP) are of advantage. Having a profound customer focus and being a strong team player with the willingness to work hands-on. Standing out for your excellent verbal and written communication skills. Being fluent in English. Benefits Impactful Collaboration : Actively shaping the digital future in a highly motivated & smart team in direct cooperation with the founders & their partners, creating real added value by linking strategy and implementation. Rewarding Career Growth & Opportunities: Benefiting from attractive salary packages, participation in sales success and exclusive investment opportunities. In addition, they promote their top talents through the 'Digital Leaders of Tomorrow' program and thus offer you further exciting benefits. Development-focused Philosophy: From day one, you will be supported on your journey through a wide range of development opportunities, quickly take on responsibility and have the opportunity to shape your individual career as a digital leader! Collaborative Workplace: Being immersed in a diverse and family-friendly environment with a strong team spirit, benefitting from a flexible and hybrid working model in one of their offices in Munich, Berlin, Hamburg and London. View into the future: Working at the cutting edge and gain valuable insights and practical experience with a focus on digital business models and data-driven value creation in eight forward-looking industries. Supportive of Well-being: Enjoying regular team events and joint sports sessions, taking advantage of a company pension scheme, an exclusive Wellpass membership as well as mobility and meal allowances and a wide range of other company benefits.

Location: Athens; Limassol; Nicosia; Thessaloniki; Fully Remote - in other eligible locations Workplace: hybrid The Role: You will join a team working with cutting-edge technologies and striving to utilise cloud services to the maximum. Your role will be to provide the necessary infrastructure using Terraform, develop CI/CD pipelines in GitLab or Jenkins, and create automations to support the development teams. Additionally, you will ensure that the underlying infrastructure runs smoothly, and the systems and tools work as expected. You'll be responsible for helping developers with troubleshooting and providing consultation in case of alerts.   As a senior engineer, you will also take ownership of specific domains or projects within the business, leading technical direction and ensuring alignment with strategic goals. You will play a key role in mentoring and overseeing other engineers, fostering collaboration, sharing best practices, and helping to drive continuous improvement across the team. The main responsibilities of the position include: Collaborate with the development teams to plan, deploy and administer applications running on AWS and Kubernetes Maintain the AWS infrastructure using Infrastructure as Code principles and Terraform Initiate and drive the adoption of technologies and use of good patterns for development and operations Mentoring and overseeing other engineers Lead and manage specific technical domains or projects, ensuring architectural consistency, scalability, and alignment with business objectives Oversee and improve engineering processes and practices, identifying opportunities for automation, optimization, and enhanced system reliability Implement and oversee cloud migration projects Provide guidance for re-platform and re-factor of current cloud infrastructure Communicate to the senior leadership, the cloud migration projects progress Preserve business continuity 24/7 with minimum downtime and financial impact Investigate and perform regular assessments of cloud deployments in compliance with the company’s standards and best practices Ensure the Company’s deployment standards and pillars are followed in cloud solutions and resources Stay up to date with the latest tools and trends in the industry Follow and provide training regarding new and current technologies and services used Main requirements: BSc/MSc in Computer Science, or a similar discipline Overall knowledge of solution design and deployment projects Experience with Docker Experience in or knowledge of CI/CD with GitLab and/or Jenkins Experience in AWS technologies, services and ecosystem Experience with Kubernetes Knowledge of Infrastructure as Code (IaC) concepts and tools, preferably Terraform Experience with versioning tools such as Git Distinctive organisation and documentation skills Excellent time management skills Essential Linux and Windows admin, networking and scripting skills Benefit from: Attractive remuneration package plus performance-based reward Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You Show Your Skills – Online Technical Challenge Let’s Connect – Intro Chat with Talent Acquisition Deep Dive – First Interview with Your Future Team Final Connection – Final Interview All applications will be treated with strict confidentiality!   By submitting this application, I confirm that I have read and agree to the terms of the Privacy and Data Protection Notice and the Confidentiality Undertaking.

Location: Belgrade; London; Berlin Perplexity is looking for an Infrastructure Engineer to own and improve the backend systems behind our latency-sensitive search stack. You’ll work across high-QPS Rust and Go services, distributed retrieval systems, cloud infrastructure, observability, and deployment tooling. This role combines infrastructure expertise with software engineering. You’ll take systems from design through production operation and use AI-native tools where they meaningfully improve engineering and operational workflows Responsibilities - Build and operate scalable, low-latency infrastructure for search serving and retrieval. - Design and improve distributed backend systems that handle high request volumes. - Debug and optimize Linux systems, containers, networking, and production services. - Improve reliability through observability, capacity planning, performance profiling, and incident response. - Design, deploy, and operate cloud-native systems, primarily on AWS and Kubernetes. - Build internal tools and automation for development, testing, debugging, and infrastructure operations. - Improve CI/CD pipelines, release processes, and production rollout safety. - Contribute directly to product codebases across Rust, Go, and other systems languages. - Own systems end to end, from architecture and implementation to deployment and production operation. Requirements - Strong experience with cloud infrastructure, distributed systems, and automation. - Deep understanding of Linux internals, performance analysis, and production debugging. - Experience building or operating latency-sensitive, high-throughput backend systems. - Experience with containers, orchestration, observability, and infrastructure as code. - Experience building or maintaining CI/CD systems and release tooling. - Fluency in at least one systems language, such as Rust, Go, C++, or Java. - Comfort working across infrastructure and application-level code. - Strong ownership and the ability to operate effectively in a fast-moving environment. Nice To Have - Experience with search, retrieval, ranking, or other large-scale data-serving systems. - Experience operating Rust services in production. - Experience with AWS, Kubernetes, and modern observability systems. - Experience with profiling, capacity planning, and performance optimization. - Experience building AI-assisted developer or operational tooling.

Location: Belgrade; London; Berlin Perplexity is looking for an Infrastructure Engineer to own and improve the backend systems behind our latency-sensitive search stack. You’ll work across high-QPS Rust and Go services, distributed retrieval systems, cloud infrastructure, observability, and deployment tooling. This role combines infrastructure expertise with software engineering. You’ll take systems from design through production operation and use AI-native tools where they meaningfully improve engineering and operational workflows Responsibilities - Build and operate scalable, low-latency infrastructure for search serving and retrieval. - Design and improve distributed backend systems that handle high request volumes. - Debug and optimize Linux systems, containers, networking, and production services. - Improve reliability through observability, capacity planning, performance profiling, and incident response. - Design, deploy, and operate cloud-native systems, primarily on AWS and Kubernetes. - Build internal tools and automation for development, testing, debugging, and infrastructure operations. - Improve CI/CD pipelines, release processes, and production rollout safety. - Contribute directly to product codebases across Rust, Go, and other systems languages. - Own systems end to end, from architecture and implementation to deployment and production operation. Requirements - Strong experience with cloud infrastructure, distributed systems, and automation. - Deep understanding of Linux internals, performance analysis, and production debugging. - Experience building or operating latency-sensitive, high-throughput backend systems. - Experience with containers, orchestration, observability, and infrastructure as code. - Experience building or maintaining CI/CD systems and release tooling. - Fluency in at least one systems language, such as Rust, Go, C++, or Java. - Comfort working across infrastructure and application-level code. - Strong ownership and the ability to operate effectively in a fast-moving environment. Nice To Have - Experience with search, retrieval, ranking, or other large-scale data-serving systems. - Experience operating Rust services in production. - Experience with AWS, Kubernetes, and modern observability systems. - Experience with profiling, capacity planning, and performance optimization. - Experience building AI-assisted developer or operational tooling.

Location: Limassol; Fully Remote - in other eligible locations Workplace: hybrid The Role:  As part of the QA team, you will work in cross-functional, innovative, agile tech teams to ensure quality is maintained consistently throughout the development process. You will be involved in front-end, back-end, and end-to-end testing, with fantastic opportunities for learning and development. The main responsibilities of the position include: Write and execute test cases based on business requirements Document and evaluate test results Enhance software delivery and quality throughout the entire software development cycle Participate on regression and verification testing Investigate, report, track and verify bugs and improvements Main requirements: BSc/MSc in Computer science 2+ years of experience in manual testing of software products Strong knowledge in software methodologies and techniques Experience in databases, CI/CD and task management tools Strong organisational skills Committed to excellence, continuous improvement, and achieving the best results Very good written and verbal communication skills in English The following will be considered an advantage: Web and mobile testing experience Good understanding of the Forex and trading industries Experience in scripting languages Experience with automated testing Familiar with different API protocols and technologies Benefit from: Attractive remuneration package plus performance related reward Intellectually stimulating work environment Continuous personal development and international training opportunities All applications will be treated with strict confidentiality!   By submitting this application, I confirm that I have read and agree to the terms of the Privacy and Data Protection Notice and the Confidentiality Undertaking.

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: Remote Workplace: Remote Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers who were passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly became one of the industry's leading technology powerhouses. Blockstream is transforming traditional financial systems by equipping enterprises and consumers with Bitcoin-based solutions that enhance efficiency, security, and scalability. Our vision is to empower the world with tools that strengthen financial security, streamline everyday use, and unlock new opportunities for growth.  In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer-2 projects like Liquid and Core Lightning, to end-user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future. As a QA Engineer, you will be responsible for designing, implementing, and executing test strategies to ensure the stability and performance of our Bitcoin and blockchain-based applications. You will work closely with developers, product managers, and devops engineers to identify issues early, automate testing processes, and maintain high-quality standards for our products. What You Will Be Doing (Responsibilities): - Develop and execute: test plans, test cases, and test scripts for blockchain-based applications and APIs. - Design, implement, and maintain automated testing frameworks for functional, performance, and security testing. - Conduct manual and automate testing of transactions, wallets, payment systems, and decentralized applications. - Identity, document, and track defects using bug-tracking tools (e.g. Jira, GitHub). - Collaborate with developers to conduct feature reviews and ensure testability of new features. - Perform security testing to detect vulnerabilities in products. - Work closely with DevOps to integrate testing into CI/CD pipelines, and optimize test execution in cloud-based environments. - Conduct regression testing and maintain a robust suite of automated tests to prevent system failures. - Research and implement test practices for blockchain and fintech QA methodologies. What We Look For In You (Required Qualifications): - 2+ years in software quality assurance; preferably in fintech, blockchain, or security-focused industries. - Proficiency in automation testing frameworks. - Strong understanding of Bitcoin and blockchain technology. - Experience with API testing tools. - Knowledge of scripting languages. - Understanding of security testing methodologies, including penetration testing and vulnerability assessments. - Experience with performance testing tools. - Strong analytical and problem-solving skills. - Ability to work in a fast-paced, remote-first, and collaborative environment. - Excellent communication and documentation skills.   🔒 Stay Safe from Job Scams All official Blockstream communication will come from an @blockstream.com email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact us at hr@blockstream.com. Learn more about avoiding job scams here https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first.

Location: Remote - Europe About Nebius: Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI. Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D. Application Security The team is responsible for the security of Nebius's main public offerings : Compute, VPC, Managed K8s, Marketplace, Managed Soperator, and others. This includes building out the Secure SDLC , threat modeling, and vulnerability management platforms. The Role We are looking for an Senior/Staff Application Security Engineer who will ensure the security of our software by identifying and mitigating vulnerabilities, implementing best security practices, and collaborating with development teams. The ideal candidate will have a strong background in secure coding, threat modeling and building Secure SDLC. What you will do Build and maintain Application Security Posture Management (ASPM) at the Company scale. Automate and support SAST, SCA tools, etc as part of CI/CD pipelines. Improving SAST, secrets detection rules. Keeping false positive rate low. Identify, analyze, and remediate application security vulnerabilities. Collaborate with development teams to integrate security best practices into the software development lifecycle (SDLC). Develop and maintain secure coding guidelines for development teams. Conduct, run threat modeling and risk assessments for new and existing applications. Provide development teams with instruments that facilitate security-related work like threat modelling, vulnerability detection, etc. Stay updated on the latest security threats, vulnerabilities, and mitigation techniques. Serve as an application security subject matter expert to other teams. What we look for 6+ years of experience in application security. Strong knowledge of common application security risks (e.g. OWASP Top 10) and how to mitigate them. Experience with secure coding practices in languages such as Python, Go, Java, or JavaScript. Proficiency in a common programming language (such as Go or Python) with a willingness to learn Go, if necessary. Hands-on experience with security testing tools (Burp Suite, ZAP, Semgrep, etc.). Understanding of authentication protocols like SAML or OIDC. Experience in conducting threat-modeling sessions. Bonus points Confidence in presenting your ideas and opinions in a manner that can be challenged, while responding well to feedback. Experience in designing, building, and maintaining security automation. Experience in translating compliance and regulation requirements into technical specifications. Experience in exploiting vulnerabilities in web applications, Linux kernels, containers, and networks. Security certifications such as OSCP or OSWE. Hiring process Recruiter's chat (30mins) Live-coding interview (60mins) to asses basic coding skills Security interview (60mins) to asses domain expertise Security System Design interview (90mins) to assess practical experience (Optional) Technical deep dive (90mins) to present a complex and impact project. Final interview to close the hiring process (45mins) #LI-CP1 Benefits & Perks: Competitive compensation Career growth and learning opportunities Flexibility and ownership Collaborative and innovative culture Opportunity to work on impactful AI projects International environment and talented teams What's it like to work at Nebius: Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI Equal Opportunity Statement: Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law. Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire. If you need accommodations during the application process, please let us know.