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OKX

Senior/Staff Java Engineer - Web3 Wallet Defi Earn

OKX · Hong Kong, Hong Kong SAR; Singapore, Singapore

Posted about 3 months ago

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

Is this posting real?

This role has been open
80 days
OKX's roles stay open a median of 81 days
Reposted
No
Salary listed
No
8% of OKX's roles list one
Ghost-job risk at OKX
high
338 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
2026-10-23

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/Staff Java Engineer will design and optimize the backend architecture for the Wallet Earn platform and the AI Agent Marketplace at OKX. Responsibilities include building risk control systems, improving protocol integration, and ensuring system stability and performance. The role requires strong Java skills and experience with distributed systems, as well as a proactive approach to problem-solving in a fast-paced environment.

Our read on this posting2.8out of 5
benefits
3/5
freshness
1/5
career value
5/5
role clarity
5/5
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

  • Solid Java fundamentals with strong command of mainstream frameworks such as Spring Boot and Spring Cloud.
  • Hands-on experience with common middleware including MySQL, Redis, MQ, and RPC.
  • Proven experience building high-concurrency, high-availability distributed systems.
  • Familiarity with the design and mechanics of major DeFi protocols (e.g., Aave, Morpho, Pendle, Pancake); understanding of smart contract fundamentals, with on-chain integration or contract development experience a plus.
  • Familiarity with mainstream wallet products and account models, and a working understanding of on-chain assets and the DeFi ecosystem.
  • Strong systems analysis and architecture design skills, ideally from large-scale consumer (To C) products or financial systems; able to independently own core-module design and drive complex projects to high-quality delivery.

Nice to have

  • Familiarity with account models, transaction mechanics, and underlying principles of major public chains such as EVM, Solana, and Tron.
  • On-chain protocol development, smart contract development, or protocol integration experience.
  • Experience building high-concurrency trading systems, core financial systems, or payment systems.
  • Understanding of on-chain risk control, KYT, and AML mechanisms.
  • Platform development experience with AI Agents, LLMs, MCP, Function Calling, A2A (Agent-to-Agent) protocols, or Workflow systems.

What you get

  • Competitive compensation and a long-term incentive plan.
  • Comprehensive insurance coverage for employees and their families.
  • An international team, an open engineering culture, and rich opportunities for technical growth.
  • Deep involvement in frontier Web3 × AI work, building next-generation open infrastructure alongside outstanding engineers.
  • Additional benefits will be detailed later in the hiring process.

Worth weighing

  • No salary listed.
  • Role involves working with emerging technologies in Web3 and AI, which may require continuous learning and adaptation.
  • Fast-paced environment may not suit everyone, especially those preferring a more structured work setting.

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

Listed by OKX on their greenhouse job board, last confirmed open on 2026-10-23. PitchMeAI is not the employer.

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