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Location: Nicosia; Limassol Workplace: hybrid The Role: You will contribute to the implementation and maintenance of the organisation's information security program, to ensure that people and information assets are adequately protected. You will also be responsible for assessing and assuring the information security of third-party suppliers and ensuring compliance with the company’s security standards. The main responsibilities of the position include: Identifying and addressing security violations and inefficiencies with systems and applications Conduct due diligence of third-party service providers’ security controls, posture and products, and ensure compliance with Company policies and security posture Perform security assessments on third-party software and service provides such as cloud services, technology vendors, or any other services outsources to a 3rd party to identify potential risk Monitoring and seeking assurance on the level of compliance of third-party service providers to ensure the secure supply chains of information systems, identify any information security risks, and improve their information security standards and controls Work with Legal to ensure third party contracts and service agreements contain adequate information security contractual provisions to protect information and information processing services Make recommendations for improving controls and practices to reduce risks related to information security Initiating and promoting activities to foster information security awareness within the company Main requirements: BSc/MSc in Information Security or any other related field Minimum 1-2 years' experience in information security or a similar role Experience in Information Security Governance and demonstrated ability to develop policies and procedures Skilled across various areas of Information Security such as operations, physical, network, system and application security Possess knowledge and understanding of common security frameworks and standards, such as: ISO27001, NIST CSF, NIST 800-53 etc CompTIA Security+, ISC2 CC, EC-Council CEH – or a relevant certification in matters of cybersecurity and/or ICT will be considered an advantage Familiar with the European General Data Protection Regulation (GDPR) and Digital Operational Resilience Act (DORA) Regulation Strong interpersonal, organizational and team working skills Excellent written and oral communication skills, in both English and Greek language Ability to work as part of a team Benefit from: Attractive remuneration package plus performance related reward Private health insurance Corporate pension fund Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You 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 Policy and the Confidentiality Undertaking.

Location: Nicosia Workplace: hybrid The Role:  We are looking for passionate and self-motivated professionals to join our Back office team. The successful candidates will have the opportunity to monitor, manage and execute client funding requests. The main responsibilities of the position include: Process deposits, withdrawals and refunds based on established policies and procedures Ensure compliance with the company’s anti-money laundering procedures Internally assist all departments with any issues related to client funds Provide suggestions on system enhancements Perform other ad hoc tasks, as requested Main requirements: Degree in finance, economics or accounting Experience in a similar position would be considered as an advantage Excellent verbal and written communication skills in Chinese and English Ability to work on shift rotation is a must Efficient and detail-oriented Computer and numerically literate Valid work permit required Benefit from: Attractive remuneration package Private health insurance Corporate pension fund Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You Let’s Connect – Intro Chat with Talent Acquisition 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 Policy and the Confidentiality Undertaking.

Location: Kuala Lumpur, Malaysia 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 this Job You will be expected to show a high level of technical knowledge and professionalism at all times when responding to queries from international legal authorities, law firms and relevant third parties within a stipulated time-frame. What You’ll Be Doing Attending to inquiries from legal authorities and legal representatives from all around the world while maintaining delivery of a high quality service level. Liaising with internal stakeholders such as compliance, risk and customer service teams ensuring all queries are dealt with in a professional manner and escalating where appropriate. Maintaining a working knowledge of company products to effectively communicate with external stakeholders. Creating and maintaining strong relationships with company partners and external stakeholders. Escalate any queries or unresolved issues to Supervisors and as advised by the operations management, which cannot be completed within the agreed procedures. Support the enhancement of our Legal Response function. Manage or participate in specific projects which may arise from time to time. What We Look For In You A degree in law / compliance or any related field which demonstrates critical thinking. Excellent communication and writing skills, and are detailed-oriented. Literate in Chinese (read and write) as this role caters to the China market. Ability to work independently and as part of a team. Comfortable working in a fast-paced, dynamic environment with changing priorities. Strong people skills: Ability to navigate difficult situations and stay calm under pressure. Solutions mindset: passionate to find the right solution and resolve the issue. Excellent time management: ability to multi-task to solve issues while managing time. Quick learner: ability to ramp up quickly and act on feedback constructively. Willingly to work on a rotational shift to support 24x7 operations . Why Join Us? Competitive remuneration package (Basic Salary + Shift Allowance + KPI Allowance + Yearly Bonus) Meal allowance Transportation allowance (T&C apply) Monthly team building RM 3,500 training & wellness benefits per annum Convenient workplace (5 minutes walk from MRT TRX) Insurance coverage for employees & dependants Excellent prospects for growth and promotion Employee engagement, recognition and appreciation program Multinational working environment: Advance your career by interacting with individuals from various backgrounds, cultures, and nations #LI-Onsite #LI-JC3 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: Athens; Limassol; Nicosia; Thessaloniki; Fully Remote - in other eligible locations Workplace: hybrid The Role: As our new Senior PHP Developer, you will join an amazing team who is dedicated to taking the next step in software engineering. You will make key decisions on software processes, and use Kubernetes and Terraform on PHP, Go, React & Angular on AWS. The team will keep you up-to-date with the latest technology stacks and processes and help you see challenging projects from beginning to end. The main responsibilities of the position include: Design and implement new features/projects Maintain and refactor existing web applications such as the company's website, registration forms, Members Area and internal web services Research and integrate new web technologies Write tests that run continuously on our CI server to ensure code quality, maintain high test coverage, and uphold the company’s engineering standards Address and resolve support tickets for issues arising within the projects you work on Main requirements: BSc/MSc in information technology or any other relevant degree At least 3 years of experience in a similar position Very good knowledge of PHP 8+, MySQL, Redis, Git Very good understanding of object-oriented programming principles Experience in creating and consuming web services Experience with modern PHP frameworks Experience in writing tests with PHPUnit Ability to research and adapt new technologies that add value to the team Strong organisational skills with the ability to prioritise Problem solving and analytical skills Ability to work independently and integrate well within a team The following will be considered an advantage: Experience in Symfony framework Experience in the development of REST APIs Experience in software development practices like design patterns, SOLID principles, DRY Very good understanding of security practices (OWASP) Experience with cloud providers (e.g. AWS) Experience in database query optimization Experience in creating composer packages Benefit from: Attractive remuneration package 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 Bring It to Life – Role-Specific Take-Home Task 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 Policy and the Confidentiality Undertaking.

Location: Limassol; Nicosia; Athens; Thessaloniki; Fully Remote - in other eligible locations Workplace: hybrid The Role: Our team is expanding and we are hiring several high caliber SDET (Software Development Engineer in Test) - Python to join our fast-growing team. You will work with world class specialists in a friendly, supportive and open-minded environment on challenging goals that will help you to grow professionally and achieve new technical levels. This role will focus on improving and monitoring product quality via test automation framework development and test coverage extension for functional and performance suits. You will work with the most valuable part of the product - a Forex brokerage core. If you enjoy working with pure API, Python, cutting-edge technologies, Kafka and AWS, this role is for you. The main responsibilities of the position include: Work in close cooperation with the development team to enhance software delivery and quality throughout the entire software development cycle Understand and translate high level business requirements to technical requirements Advise on efficient performance testing strategies for enhancing delivery and quality throughout the full software development cycle Develop formal test procedures and test plans from internal product design documentation as well as from external certification requirements Design, develop and modify functional and performance automation tests Design and implement test automation framework, required libraries and auto-tests Develop emulators for mobile testing Build CI/CD pipelines and integrate automation scripts into CI tools Manage any issues that may arise and drive resolutions throughout the testing process Share technical expertise with the rest of the QA team Actively participate in the Software Development Life Cycle and Software Testing Life Cycle Main requirements: BSc/MSc in Computer Science, Software Engineering or similar Minimum 2 years of comprehensive experience in quality assurance Minimum 2 years of practical experience in Python development Strong hands-on experience in designing and developing automated tests using Python Strong technical background Experience in testing REST API Confident knowledge of Git Experience in agile software development methodologies and testing procedures Strong interpersonal skills Very good written and verbal skills in English The following will be considered an advantage: Experience with testing framework development Experience with asynchronous and multithreading programming Experience in testing web sockets Experience with Docker Experience with  Grafana Experience in performance testing Experience in the Finance/Forex domain Benefit from: Attractive remuneration package plus performance related reward Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You 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 Policy and the Confidentiality Undertaking.

Location: Limassol; Nicosia Workplace: hybrid The Role:  We are seeking a talented and data-driven Senior Performance Marketing Executive to join our team in a rapidly growing, fast-paced, and agile environment. In this role, you will be responsible for planning, executing, and optimizing performance marketing campaigns to drive specific actions and achieve our business objectives. Your expertise in digital marketing, analytics and optimization techniques will play a critical role in achieving our marketing objectives and maximizing return on investment (ROI). The main responsibilities of the position include: Develop and execute performance marketing strategies to meet predefined goals Conduct thorough audience research and segmentation to identify target demographics, interests, and behaviours for effective campaign targeting Prepare comprehensive reports and performance summaries to communicate campaign outcomes, insights, and recommendations to stakeholders Optimize campaign performance through continuous monitoring, data analysis, and strategic adjustments to maximize key performance indicators (KPIs) Manage advertising budgets and make data-driven decisions to allocate budget across campaigns based on performance analysis and ROI Stay up to date with industry trends, emerging technologies, and best practices in performance marketing to continuously improve campaign strategies and techniques Conduct competitor analysis to understand the strengths, weaknesses, and strategies of our key competitors Collaborate with internal and external stakeholders to ensure the successful execution of marketing campaigns Main requirements: BSc/MSc in Mathematics, Statistics, Marketing, or a related field At least 4 years of experience in a similar position In-depth knowledge of digital advertising platforms and tools, such as Google Ads, META ads, X ads , Tik Tok ads, Google Analytics 4, Data Studio and other relevant platforms Experience in programmatic ads will be a plus Advanced Microsoft Excel skills Strong analytical skills and ability to interpret data to make informed decisions and optimize campaign performance Self-motivated and results-oriented mindset Eagerness to learn new tools and technologies Highly organized and be able to adapt quickly to changing priorities and thrive in a fast-paced, dynamic environment by managing multiple projects simultaneously Excellent oral and written communication skills in English Benefit from: Attractive remuneration package plus performance related reward Private health insurance Corporate pension fund Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You Let’s Connect – Intro Chat with Talent Acquisition Test your edge – Aptitude Assessment Deep Dive – First Interview with Your Future Team Bring It to Life – Role-Specific Take-Home Task Test your edge – Personality Assessment 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 Policy and the Confidentiality Undertaking.

Location: Limassol; Nicosia; Athens; Thessaloniki; Fully Remote - in other eligible locations Workplace: hybrid The Role:  As our Senior Platform Engineer, you will join a team who strive to push cloud services to the maximum limit every day using cutting-edge technologies. If you are a highly self-motivated professional who embraces DevOps culture, has experience with AWS services and technologies and is passionate about learning, automating, innovating and working in a highly collaborative environment, we'd like to hear from you! The main responsibilities of the position include: Initiate and actively drive the adoption of good patterns, structures and use of technologies for development and operations Investigate and identify practices and work that can benefit from automation Monitor and suggest improvements to the existing CI/CD process to increase speed, safety and reliability Implement and coordinate implementation with the parties involved Develop and maintain existing /GitLab CI pipeline libraries Assist developers with setting up CI/CD for their projects and provide support for any issues that may arise Stay up to date with the latest tools and trends in the industry Provide senior-level, best practice recommendations and implementations to our Windows, Linux and Kubernetes hosting environments Function as a mentor to junior team members, providing technical guidance and recommending continued learning opportunities to help them develop Educate fellow team members as well as Application Development Teams about the platforms used-for and hosted-by our team. Key tools and concepts in this space are: Gitlab, Docker, AWS, Terraform, Istio Service Mesh,  Kubernetes , Kafka, ELK Work with our Security team to remediate high-risk vulnerabilities and ensure the security of our environments are being scrutinised as appropriate for their use case Offer services related to the above tasks and projects to any of the Companies of the Group as instructed by the Line Manager Main requirements: University degree in Computer Science, Engineering, or a similar discipline 7+ years’ experience within the following areas: Cloud ( AWS), Release Pipeline Management, Windows Server Administration, Linux Administration, Certificate Management, PowerShell scripting, Bash/python scripting, Configuration Management and IAC (Ansible/Terraform), DNS, Networking Enterprise-level Kubernetes experience Solid Linux administration skills Commitment to continuous improvement, with a focus on observability, modern application architecture styles, blue-green / canary deployments, CI/CD pipeline management Ability to self-motivate, study, and stay on-top of emerging technologies and trends, while meeting business deadlines Experience with tools including: Istio, Prometheus, Grafana, ELK, MSK, New Relic The following will be considered an advantage: Familiarity with database concepts Working experience with at least one cloud provider (preferably AWS) Experience with Apache Kafka configuration and troubleshooting Experience with ELK configuration and troubleshooting Scripting skills (Bash, PowerShell, Python, Go, etc.) 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 Policy and the Confidentiality Undertaking.

Location: Athens; Thessaloniki Workplace: onsite The Role:    As a Junior Systems Monitoring Officer working within our team, you will be responsible for managing a variety of risks for the company, relating to our systems and the various products we offer to our clients and partners. Using in-house tools and reports, you will monitor and evaluate client behaviour, analyse and evaluate the products we offer, and take initiative to help improve on the current tools, reports and procedures used and followed by the department. The main responsibilities of the position include: Monitor the system used by the department and analyse various reports Conduct reviews and investigations of client activity Monitor and ensure swift actions are being taken to manage a range of risks Identify, examine, and report any suspicious activities related to the violation of the Terms and Conditions or the company Work with other departments to perform daily duties and to achieve common goals Stay up to date with market and economic developments Main requirements: BSc/MSc in Mathematics, Statistics, Economics, or any other relevant field (first or upper second-class honours) Strong analytical skills Organised and methodical personality, high attention to detail Excellent oral and written communication skills in English Excellent working knowledge of Microsoft Office tools Ability to work on a well-structured, rotating shift schedule, including weekends Benefit from: Attractive remuneration package Private health insurance Corporate pension fund Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You Let’s Connect – Intro Chat with Talent Acquisition Deep Dive – First Interview with Your Future Team Test your edge – Aptitude Assessment 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 Policy and the Confidentiality Undertaking.

Location: Limassol Workplace: onsite The Role:    We are looking for an energetic and self-motivated professional to join and enhance our Dealer team. After undergoing extensive training to comprehend the operations of the company and the department, you will be expected to effectively monitor and maintain our trading systems and tools, spot issues in real time and take corrective actions in a timely manner. High attention to detail and the ability to work efficiently under pressure are a must for this role. Due to the dynamic nature of our industry, it is also crucial to be able to continuously adapt and evolve.  This is an opportunity to thrive and grow in a professional and fun environment. The main responsibilities of the position include: Monitor and maintain the department's trading systems & tools Monitor and hedge company-level exposures according to established rules and guidelines Work closely with other departments to ensure trading systems are fully operational and handle related issues in a timely fashion Keep abreast of market and economic developments Main requirements: BSc/MSc in Mathematics, Statistics, Economics, or any other relevant field (first or upper second-class honours) CySEC certification is a plus Strong analytical skills Organised and methodical personality, high attention to detail Excellent oral and written communication skills in English Excellent working knowledge of Microsoft Office tools Ability to work on a well-structured, rotating shift schedule, including weekends Benefit from: Attractive remuneration package plus performance related reward Private health insurance Corporate pension fund Intellectually stimulating work environment Continuous personal development and international training opportunities The Hiring Experience: What Awaits You Let’s Connect – Intro Chat with Talent Acquisition Deep Dive – First Interview with Your Future Team Test your edge – Aptitude Assessment 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 Policy and the Confidentiality Undertaking.

Location: Limassol; Athens; Nicosia; Thessaloniki; Fully Remote - in other eligible locations Workplace: hybrid The Role: This is a great opportunity for you to work in a technology driven environment in close collaboration with skilled and passionate professionals, who utilize the best practices and cutting-edge technologies. You will be working on challenging projects that involve multithreading and high performance, security and scalable microservices. You will get every chance to share your opinions and grow professionally. Our technical stack includes, but is not limited to; AWS Cloud Services, Terraform, REST API and gRPC The main responsibilities of the position include: Write clean, simple, maintainable and testable code Design, implement and maintain cloud-based services and APIs Monitor, troubleshoot and debug applications Participate and run code reviews Follow emerging technologies and frameworks Main requirements: BSc/MSc in Computer Science, Engineering, or any other relevant degree In-depth experience with Go. Experience in other programming languages is considered a plus In-depth experience with REST service designs Experience with monitoring, logging and tracing systems Experience with GenAi will be considered as a plus Proven experience using SQL and NoSQL databases Very good knowledge of programming best practices and design patterns Experience using systems and tools for automating deployment, scaling, and management of containerized applications for production service deployments Good understanding of algorithmic complexity, data structures and multi-threading concepts Knowledge of AWS Cloud Services is considered a plus A keen interest in benchmarking and optimization Contributions in open source projects are considered a plus Strong teamwork skills with a problem-solving attitude and interest in personal development Benefit from: Attractive remuneration package Intellectually stimulating work environment Continuous personal development and international training opportunities Attractive relocation package and support for a smooth relocation for you and your family The Hiring Experience: What Awaits You Show Your Skills – Online Technical Challenge Let’s Connect – Intro Chat with Talent Acquisition Bring It to Life – Role-Specific Take-Home Task 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 Policy and the Confidentiality Undertaking.

Location: Athens; Limassol; Nicosia; Thessaloniki; Fully Remote - in other eligible locations Workplace: hybrid The Role:  You will join a team working with Observability, Escalations, Post-mortems, Correction of Errors, and other practices that will contribute to the company's goal of cloud resiliency. You will be responsible for driving processes around reliability, best practices, cultural change, and enforcement of these practices. The main responsibilities of the position include: Honor and practice the Resiliency pillar of the Well Architected Framework in all tasks and responsibilities Conduct Chaos Engineering experiments and relevant exercises to improve resiliency and fault-tolerance Research workloads for migrating to the cloud with minimal disruption and impact Monitor cloud migration projects to ensure seamless transitions Design, consult, re-platform, and re-factor the observability of current cloud infrastructure Coordinate with other IT departments and teams regarding observability for both individual and organizational needs Regularly assess cloud deployments for compliance with the company’s standards and best practices Investigate and correct areas where observability is lagging Stay up to date and provide training on new and current technologies, services, tools, methodologies, and practices Occasionally participate in service capacity planning, software performance analysis, and system tuning Mentor colleagues in technical skills and knowledge Analyze, oversee, and remediate the company’s resiliency Participate in on-call support 24/7 based on a rotation schedule Main requirements: BSc/MSc degree in Computer Science or related field 5+ years of cloud services experience, with at least 3 years on AWS cloud 3+ years of experience in SRE or a similar role Experience with monitoring, APM, logging, and notification tools Familiarity with incident, problem and change management procedures and practices Advanced knowledge of SRE practices and methods Understanding and practice of Service Levels Strong troubleshooting skills and the ability to mentor others Extensive experience with Kubernetes and related technologies, services, and ecosystem Advanced knowledge of CI/CD, Infrastructure as Code (IaC) concepts and tools, especially HCL Terraform and AWS CloudFormation Experience with versioning tools like Git Strong organizational and documentation skills Exceptional time management and research abilities Advanced Linux, networking, and scripting skills The following will be considered an advantage: Experience with platforms like Kafka (MSK) Experience with RDBMSs, particularly Postgres and MySQL Knowledge of scripting languages such as Python or Go Benefit from: Attractive remuneration package and perks 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 Policy and the Confidentiality Undertaking.

Location: Remote - Worldwide About us OpenZeppelin is the security standard onchain finance is built on. Founded in 2015, our mission is to accelerate the world's transition to an open financial system, built on open standards and secured by rigorous research. Our open-source Contract Libraries have facilitated over $35 trillion in onchain value and are used by 10 of the top 10 tokenized money market funds and 9 of the top 10 stablecoins by market cap. We combine AI-native security tooling with deep research and a decade of audit expertise to support leading institutions and crypto-native teams shaping the next generation of digital assets like DTCC, Fidelity, Coinbase, Uniswap, Aave, the Ethereum Foundation, and many more across the full secure development lifecycle. Please note: Always refer to OpenZeppelin's official job page for the most accurate information about our open roles, as we have seen multiple third party job sites posting inaccurate information. The Security Services Team OpenZeppelin's Security Services team is responsible for the security of the world's leading web3 protocols and top financial institutions building onchain. Our researchers partner with client teams across the full lifecycle of a protocol: working on architecture and design before any code is written, co-creating novel mechanisms and primitives with engineering teams, conducting deep audits of pre-launch codebases, and providing continuous coverage as production systems evolve. Our clients range from emerging projects shipping their first contracts to global financial institutions running production onchain systems at scale. What you'll be doing Review smart contracts for top decentralized applications, blockchain infrastructure and financial institutions before they launch. Find vulnerabilities, prioritize them, and present findings to the client. Drive audits independently from start to finish, with AI as your primary collaborator. When useful, partner with another researcher to attack the code together and pressure-test findings. Partner with client teams during the design phase of new protocols, analyzing architecture, trust assumptions, and operational constraints before any code is written (Design Reviews, Applied Research engagements). Use AI efficiently throughout the audit process, and build skills, agents, and workflows that compound across the team. Conduct open-ended research into cutting-edge blockchain technologies, vulnerability classes, and emerging attack vectors, and contribute findings back to OpenZeppelin's internal knowledge base and to the broader ecosystem. You have Hands-on and practical experience in one or more of the following: software development, cybersecurity, applied mathematics, distributed systems, cryptography, cryptoeconomics or game theory, or DeFi mechanisms. Experience designing and developing smart contracts, not only auditing them. Strong working knowledge of Solidity and the broader Ethereum / EVM ecosystem (common libraries, frameworks, smart contract patterns). Modern AI tooling is central to how you work, not a novelty. You use it daily to expand audit coverage, reason about complex systems, and produce high-quality outputs faster. You evaluate AI-generated code with a critical eye. Comfort building and extending your own tooling (skills, agents, prompts, scripts, or full workflows) that the rest of the team can adopt and build on. An advanced English level and strong communication skills (oral and written). Nice to have Experience with non-EVM ecosystems and languages, such as Canton, Move (Sui, Aptos), Golang (Cosmos SDK), Cairo (Starknet), Rust-based blockchains (Solana, Stellar), or ZK circuits and cryptography-heavy systems. Experience with risk assessment work in the crypto industry (smart contract risk assessment, threat modeling). Working hand-in-hand with protocol teams on co-creative engagements, helping design, specify, and implement smart contracts alongside the research. Web2 security expertise (penetration testing, web application security, infrastructure security, or appsec). Experience with formal verification, invariant testing, or advanced fuzzing tools (Echidna, Foundry, Halmos, Certora). A track record in audit contests (Code4rena, Sherlock, Cantina) or bug bounty platforms (Immunefi, HackerOne). Public security research output, such as published findings, blog posts, conference talks, or contributions to open-source security tooling. Logistics Our interview process takes place on Google Meet and tends to consist of the following stages: Recruiter call (30 minutes) Manager interview (60 minutes) Technical interview (60 minutes) Paid work trial (paid code review assessment) Reference checks Please let us know if you require any accommodations for the interview process, and we’ll do our best to provide assistance. Benefits Meet your teammates at company gatherings around the world 😎 Enjoy the flexibility of fully remote work 🌎 Take the time you need with flexible time off 🏝 Grow your family with 8 weeks of paid leave for primary caregivers, 4 weeks for secondary caregivers, and a one-time $3,600 baby bonus 💙 Build your ideal home office with up to $500 in equipment support 🪑 Stay covered with medical insurance 🏥 Keep growing with learning and development opportunities 🧠 Get a monthly stipend for your preferred co-working space 💻 At OpenZeppelin , we are an equal opportunity employer and we value different perspectives. We are committed to building a diverse workforce. This includes but is not limited to gender, race, sexual orientation, religion, national origin and other characteristics that make each one of us unique. In this uniqueness, we find the most value. Come join us! Use of AI as part of the recruiting process As part of OpenZeppelin’s recruitment process, we may use automated tools, including artificial intelligence, to assist in reviewing applications and assessing candidate qualifications. These tools are used to support our People team by identifying relevant skills and experience, and are not used to make decisions solely by automated means. All hiring decisions involve human review. Any personal data provided as part of your application will be processed in accordance with OpenZeppelin’s Data Privacy Notice . If you have questions about this recruitment process or would like to request human review of your application, please contact us at talent@openzeppelin.com.

Location: Anywhere Senior Build Systems Engineer Remote - Anywhere (American timezones preferred) About Brave Brave is on a mission to protect the human right to privacy online. We’ve built a free web browser that blocks creepy ads and trackers by default, a private search engine with a truly independent index, a browser-native crypto wallet, and a private ad network (opt-in!) that directly rewards you for your attention. And we’re just getting started. Already over 128 million people have switched to Brave for a faster, more private web. Millions more switch every month. The internet is a sea of ads, hackers, and echo chambers. Big Tech makes huge profits off our data, and tells us what’s true and what’s not. Brave is fighting back. Join us! Summary As a colleague (in a team of 8 seniors, each with 15-25+ years of experience) your work will be around reducing toil and building and supporting the automation and processes that enable us to reach 200 million users. We have hundreds of builds running every day for over 1000 GitHub repositories (many open source) with languages like C++, Rust, Go, Python, JavaScript/TypeScript, Ruby, Kotlin, Bash/Shell, HCL and many more. We ship fast and on multiple desktop and mobile platforms, architectures and distribution channels. Multiple CI systems and acceleration/optimization techniques are used to build the right thing and the thing right. Our processes are light and we have no mandatory weekly meetings, 0 on-call, no need to be in an office (unless you really want to) and no strict core hours. Work is autonomous (collaborative at times), asynchronous, flexible. Requirements 10+ years of experience with automation and CI, build and release engineering, testing and reporting tools, code signing, app stores and distribution, packaging (for mobile or desktop apps) extensive and diverse operating system + architecture experience (Android, iOS, Linux, macOS, Windows + x86/x64/arm64) AWS + Terraform any combination of Bash/Shell, Python, Kotlin, Groovy AI-positive but able to code and review generated code privacy and security product mindset, interface with multiple teams, see things end to end, lead on best practices Nice to haves TeamCity (Kotlin DSL), Jenkins (Jenkins Job Builder) browser or Chromium knowledge gn, ninja, siso, reclient, Remote Execution API, EngFlow, ccache/sccache, custom builds systems Gerrit automated testing at scale performance testing and tuning security and quality scanning, SAST/DAST Working at Brave Industry-leader in privacy, with a research and engineering team that’s innovating everyday to keep people safer online and beat Big Tech Highly competitive salaries & benefits, and generous home-office stipends Fully remote team, though we have offices and gatherings in a few locations around the world Welcoming, humble, ridiculously smart teammates, and a truly flat org structure Opportunity to get in early at a hyper-growth company, and revolutionize the web Oh, and did we mention Brendan, our CEO & co-founder, invented JavaScript? Fully remote or hybrid position. No visa sponsorship provided. Check us out brave.com