Senior Software Engineer, OKX
Payment
$178.9-268.3k
+ Competitive total compensation package
Cryptocurrency trading app
Be an early applicant
Cryptocurrency trading app
1001+ employees
Be an early applicant
$178.9-268.3k
+ Competitive total compensation package
1001+ employees
Company mission
To take care of our team, promote and advance crypto globally, and empower every individual in the world.
Role
Who you are
- 5+ 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
What the job involves
- We're looking for a Senior Software Engineer to join our Payments Team, based in the US. Payments is where OKX meets the real financial world. Our team has built and operates the infrastructure connecting OKX to dozens of payment channels across global markets, giving users deposit and withdrawal options that are fast, convenient, and — most importantly — trustworthy. That platform moves and safeguards user assets at institutional scale, continuously, across time zones and regulatory environments
- This is not a greenfield team looking for its footing. The team is established, the platform is in production at scale, and we are actively expanding — both in scope and in headcount. That combination is rare: you get the leverage of joining a growing team where your work visibly shifts the roadmap, along with the discipline that comes from a system already trusted with real money
- It's also an unusually good place to learn. Payments is a domain that's hard to pick up from the outside — every market has its own rails, its own settlement behavior, its own failure modes, its own compliance expectations. Here you'll work across a wide range of payment methods and channels, and you'll build the judgment that comes from operating financial systems where the stakes are real: how to design for correctness when money is on the line, how to reconcile, how to recover, how to keep a platform observable enough that you find problems before your users do
- You'll work closely with product managers, designers, and partner-facing teams, and you'll set the technical bar for the engineers around you — through design docs, code reviews, and the everyday habit of doing things properly when nobody's watching
- If you like the sound of a team where the problems are genuinely hard, the standard is high, and your opinion changes the outcome, we'd like to talk
- 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
- What you'll take away from this role
- Deep, practical fluency across a wide range of global payment methods and channels — knowledge that is genuinely hard to acquire anywhere else
- Experience designing and operating systems entrusted with substantial user assets, where correctness and recoverability are non-negotiable
- A track record of shipping in a regulated, high-stakes domain at real scale
Our take
While cryptocurrency holds the promise of freedom in personal finances and the possibility of large financial rewards through trading, it can be intimidating to get started. OKX, a long-standing crypto currency exchange, exists to solve that problem, removing the knowledge barriers to cryptocurrency trading with an easy-to-use, all in one platform.
OKX is one of the larger cryptocurrency exchanges, though it is a bit smaller than the market leaders Binance and Coinbase Exchange. Where it shines is in the sheer range of its services, which are designed to be versatile enough for any user, ranging from a crypto exchange to NFT and decentralised finance investment products. With a reputation for security and reliability, it has a user base of over 50+ million active accounts in over 180 countries.
OKX is using its structural position in cryptomarkets to help support the entire sector, announcing a market recovery fund to protect crypto firms facing collapse following the FTX crisis. Additionally, it is expanding into Web3 gaming with a 2023 partnership with Thirdverse, further increasing the scope of its offering to its client base. As long as it can continue to weather the tough market conditions for cryptocurrency, it should maintain its excellent position to continue its growth.
Freddie
Company Specialist at Welcome to the Jungle
Company
Leadership
Star Xu
(Founder & CEO)Previously an Engineer at Yahoo before becoming the Chief Technology Officer at DocIn. They later founded OKX and has recently reclaimed the title of CEO
Salary benchmarks
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