Senior Staff Engineer, Payment
Who We Are
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
What You'll Be Doing
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Design and build the core. Develop high-scale, 24/7 APIs and distributed payment services across multiple cloud providers, using Java and Spring Boot as the primary stack. Own systems end to end - from design doc through production ownership.
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Expand our global reach. Help integrate and scale new payment channels and methods across markets, each with its own technical, operational, and reliability characteristics.
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Protect user assets. Build for correctness first: consistency, idempotency, reconciliation, failure recovery, and the operational tooling that lets us stand behind every transaction.
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Set the technical bar. Participate actively in design and code reviews, giving and receiving direct, constructive feedback. Help evolve the standards a growing team builds on.
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Solve the hard problems. Investigate complex distributed-systems challenges and drive them to resolution rather than handing them off.
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Partner across functions. Work with product, design, and partner teams across regions to turn ambiguous requirements into shipped systems, and to unblock dependencies before they become delays.
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Grow the team's capability. Mentor engineers and share what you learn. Seniority here is measured in leverage, not just output.
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Stay curious. Keep pace with a fast-moving industry and bring the good ideas back.
What you'll take away from this role
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Deep, practical fluency across a wide range of global payment methods and channels - knowledge that is genuinely hard to acquire anywhere else
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Experience designing and operating systems entrusted with substantial user assets, where correctness and recoverability are non-negotiable
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A track record of shipping in a regulated, high-stakes domain at real scale
What We Look For In You
- 8+ years of backend software development experience, with a proven track record of building and operating high-availability, large-scale applications.
- Strong engineering fundamentals - data structures, algorithms, concurrency, and software design patterns - and the judgment to know when to reach for which.
- Ownership instinct. You take responsibility for outcomes, not just tickets. When something's broken or unclear, you move toward it.
- Ability to drive cross-team collaboration, managing complex dependencies and competing requirements without losing momentum.
- Excellent problem-solving skills, and comfort operating with autonomy in a fast-paced environment.
- Strong written and verbal communication. You can explain a complex technical trade-off to an engineer and to a non-technical stakeholder, and land it with both.
- Genuine interest in crypto or fintech, and in building things that make money move better.
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Competitive total compensation package
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L&D programs and Education subsidy for employees' growth and development
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Various team building programs and company events
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Wellness and meal allowances
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Comprehensive healthcare schemes for employees and dependants
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More that we love to tell you along the process!
About OKX
OKX is a leading global Web3 technology company and cryptocurrency exchange, dedicated to building the future of decentralized finance and digital asset ownership. With a robust presence and growing operations across Colombia, Argentina, and Mexico, we provide a secure, innovative, and user-friendly platform for millions worldwide to trade, invest, and explore the vast potential of the blockchain ecosystem. We're at the forefront of developing cutting-edge solutions, from advanced trading tools and DeFi protocols to immersive metaverse experiences and NFT marketplaces, all powered by our unwavering commitment to security and transparency. Our culture at OKX is driven by innovation, collaboration, and a passion for pushing the boundaries of what's possible in Web3. We foster an environment where bright minds are empowered to contribute to a decentralized future, thrive on challenging projects, and grow alongside pioneering technology. We value diversity of thought, encourage continuous learning, and believe in building a team that is as global and interconnected as the blockchain itself. Joining OKX means being part of a dynamic, fast-paced team that is shaping the next generation of the internet. If you're a blockchain professional eager to make a tangible impact and contribute to a truly global platform, OKX offers unparalleled opportunities. We're seeking visionary talent in LATAM to join our mission of making crypto and Web3 accessible to everyone, everywhere. Come build with us and play a pivotal role in accelerating the adoption of decentralized technologies, empowering individuals, and revolutionizing financial systems around the world.
Ready to Apply?
To submit your application for this position, please visit OKX's official website and follow their application process.