Tuyển dụng Sr Backend Engineer Blockchain, Crypto Exchange, Java tại Hồ Chí Minh

Top 3 Reasons To Join Us Directly build core product with Founder 13th-month salary & project bonuses Full tech stack & architecture control The Job

• Own a core exchange module end to end: design, code, tests, deployment, and its behaviour in production.
• Build wallet infrastructure and on-chain deposit/withdrawal flows — idempotent retries, network failure handling, safe recovery, and balance reconciliation.
• Bring the design, estimates, dependencies and technical risks for your module into the shared roadmap, and drive build-vs-integrate evaluations for third-party services, SDKs and node infrastructure in your area.
• Settle REST and WebSocket contracts with frontend, including real-time market data.
• Ship to production standards: automated tests, CI/CD, monitoring and alerting, audit logs, access control. Anything touching real assets is reviewed before release.
• Take operational ownership of what you build: lead triage on incidents in your modules, run the post-mortem, and land the fix that prevents the repeat.

Your Skills and Experience

• 5+ years backend engineering, including production ownership of at least one system that moves real money or real assets — exchange ledger, custody/wallet, payment settlement, trading backend, or equivalent. We want to hear what you personally built and ran.
• Correctness under concurrency: database transactions, idempotency, monetary precision and rounding, reconciliation, and clean recovery from partial failure.
• Strong in Go, Java or Rust — or deep Node.js/TypeScript experience with proven handling of concurrency and load. Plus SQL, Redis, a message queue, and WebSocket.
• Production operations experience: you have deployed it, monitored it, and diagnosed it under pressure.
• Solid grasp of access control, separation of duties, secure credential storage, and transaction signing.
• Reads English technical documentation; explains architecture, risk and progress clearly.

Nice to have

• Direct experience inside a live CEX — order matching, ledger, or wallet — at any scale.
• Hot/cold wallet architecture or institutional custody integration.
• TON / Jetton, or Telegram Mini App (TMA) development.
• Liquidity provider or market maker integrations.
• Load testing, disaster recovery drills, or security audit participation.

Why You'll Love Working Here

• Salary 45 – 60M
• Work directly with the founder, building the technical foundation and shaping the product from the earliest stage.
• Scope of technical decision-making on architecture, technology, and development standards agreed together with the founder.
• Supporting resources and the on-call rotation arrangement are discussed and clearly agreed before you accept the offer.
• Young, dynamic and fun working environment.
• 13th month salary, project bonus.
• Free foods and drinks at pantry.
• Social insurance and annual leave according to regulations.