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OKX

Senior Engineer - Fiat Payment，Card

OKX · Hong Kong, Hong Kong SAR

Posted about 2 months ago

or apply directly on OKX's site. We never take the application ourselves.

Is this posting real?

This role has been open
53 days
OKX's roles stay open a median of 54 days
Reposted
No
Salary listed
No
8% of OKX's roles list one
Ghost-job risk at OKX
high
286 stale, 6 reposted of 343 open
Hiring momentum
411 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-26

Measured from postings appearing on and disappearing from OKX's own greenhouse board since 2026-08-03. Full hiring picture for OKX.

About this role

The Senior Engineer for the Fiat Payment Card team at OKX will focus on developing and maintaining backend microservices in Java for card issuing and transaction authorization. Responsibilities include managing complex transaction workflows, optimizing SQL databases for high-concurrency transactions, and integrating AI tools to enhance development efficiency. The role also involves delivering features that support user growth and card lifecycle management.

Our read on this posting2.0out of 5
benefits
1/5
freshness
1/5
career value
4/5
role clarity
4/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of OKX as an employer.

What you need

  • 1–3 years of backend engineering experience proficient in Java (Spring Boot)
  • Direct experience or solid understanding of distributed workflow tools like Temporal
  • Strong background in Fintech with a solid grasp of card transaction mechanics
  • Proactive in using AI development tools to boost output and maintain high code quality
  • Highly self-driven, quick learner, and excited to build secure financial products.

Nice to have

  • Experience working directly with Card Issuing processors or Payment Service Providers (PSPs)
  • Broad understanding of Web3 concepts or crypto-to-fiat conversion flows
  • Exposure to cloud-native stacks (Docker, Kubernetes, AWS/GCP)

Worth weighing

  • Focus on backend development may limit exposure to frontend technologies
  • Specific experience in Fintech and card transactions is crucial for success in this role
  • No salary or benefits information provided in the posting

Summarised from OKX's posting. Read the full original.

Listed by OKX on their greenhouse job board, last confirmed open on 2026-09-26. PitchMeAI is not the employer.

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