Senior Software Engineer, Payment

OKX
San Jose
Workplace: OnsiteFull timeUSD 178,888 - 268,333 annuallyFunction: Software EngineeringExperience: 5+ yearsSkills: ["Ownership","Cross-team collaboration","Problem-solving","Communication","Mentorship"]

Build and operate high-scale, 24/7 payment services that connect OKX to global payment channels. Own systems end to end—from design docs through production—and focus on correctness for transactions, including idempotency, reconciliation, and failure recovery. Expand the platform by integrating new payment methods across markets, investigate distributed-systems challenges, and raise engineering standards through design and code reviews. Mentor engineers and collaborate across product, design, and partner teams.

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FursaFursa
OKX
OKX
1 day ago

Senior Software Engineer, Payment

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Source: Company careers pageValidated by: Fursa AI
Last checked: 9 hours agoStatus: Live

Job Summary

Build and operate high-scale, 24/7 payment services that connect OKX to global payment channels. Own systems end to end—from design docs through production—and focus on correctness for transactions, including idempotency, reconciliation, and failure recovery. Expand the platform by integrating new payment methods across markets, investigate distributed-systems challenges, and raise engineering standards through design and code reviews. Mentor engineers and collaborate across product, design, and partner teams.
Location: San Jose
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design and build core high-scale, 24/7 payment APIs and distributed payment services across cloud providers, owning systems end to end.
  • •Integrate and scale new payment channels and methods across global markets.
  • •Ensure transaction correctness with consistency, idempotency, reconciliation, failure recovery, and operational tooling.
  • •Set the technical bar through design docs and active participation in code reviews with constructive feedback.
  • •Mentor engineers and investigate complex distributed-systems challenges to drive them to resolution.

Pay and Benefits

Salary: USD 178,888 - 268,333 annually
Perks:Learning BudgetHealth InsuranceMeal Allowance

Key Requirements

  • •5+ years of backend software development experience building and operating high-availability, large-scale applications.
  • •Strong engineering fundamentals including data structures, algorithms, concurrency, and software design patterns.
  • •Ownership mindset with responsibility for outcomes beyond individual tickets.
  • •Ability to drive cross-team collaboration while managing complex dependencies and competing requirements.
  • •Strong written and verbal communication, able to explain technical trade-offs to technical and non-technical stakeholders.
Experience:5+ yearsCryptoFintech
Skills:OwnershipCross-team collaborationProblem-solvingCommunicationMentorship
Languages:English
Tech Stack:JavaSpring BootAPIsDistributed systems

Company Brief

OKX
Global cryptocurrency exchange and Web3 technology provider offering spot and derivatives trading, custody, wallet services, and blockchain infrastructure to retail and institutional users worldwide.
Industry: Trading Platforms
Company Size: Enterprise (1,001+ employees)
Growth: Established Company
Headquarters: Victoria, Seychelles
Founded: 2017
WebsiteLinkedIn