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◆ 7/10
cryptofintechpaymentsweb3
About this role
Join OKX as a Senior Staff Engineer in Payments, where you'll design and build high-scale APIs and distributed payment services, ensuring user asset protection and driving cross-team collaboration.
Description
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.Responsibilities
What You’ll Be Doing
- 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.
- Expand our global reach. Help integrate and scale new payment channels and methods across markets, each with its own technical, operational, and reliability characteristics.
- Protect user assets. Build for correctness first: consistency, idempotency, reconciliation, failure recovery, and the operational tooling that lets us stand behind every transaction.
- 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.
- Solve the hard problems. Investigate complex distributed-systems challenges and drive them to resolution rather than handing them off.
- 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.
- Grow the team's capability. Mentor engineers and share what you learn. Seniority here is measured in leverage, not just output.
- Stay curious. Keep pace with a fast-moving industry and bring the good ideas back.
Requirements
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.
Conditions & Benefits
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!
Job Details
Market range (est.)$120k–$245k
LocationOffice
AI Score★★★★★★★☆☆☆ 7/10
Riskhigh-risk
PostedOct 7, 2026 (5d ago)
Tags & Skills
cryptofintechpaymentsweb3Otheroffice
Tech Stack
JavaSpring Boot