£55K/yr to £75K/yr
City of London, England
Permanent, Variable

Backend Engineer - Real-Time Game Server (Mandarin Required)

Posted by Spinnr Tech LTD.

Summary:

We're hiring a Backend Engineer to join a high-performance game platform project under our Group. This role focuses on building real-time game server systems for multiplayer slot, board, and blockchain-based games.
Fluency in Mandarin is required.

**About the Company:

Spinnr Tech is recruiting on behalf of one of our group-backed gaming projects.

We are a fast-growing technology team developing high-performance backend systems that support large-scale, real-time applications in the online gaming industry. Our backend services handle millions of API requests daily, with a strong emphasis on data flow design, scalability, and stability.

**Key Responsibilities:

  • Design and develop backend systems to support real-time multiplayer game logic.
  • Build modules for slot games, board games, and blockchain-integrated games.
  • Implement full-cycle data handling: ingestion, processing, and transmission to front-end and third-party platforms.
  • Integrate fairness verification mechanisms (e.g. RNG validation, cryptographic proof).
  • Contribute to server architecture design to improve scalability and reliability.
  • Troubleshoot and resolve production issues and performance bottlenecks.
  • Collaborate with cross-functional teams (product, QA, DevOps) across the full SDLC.

**Essential Requirements:

  • 3+ years of hands-on backend development experience.
  • Proficient in Golang (preferred), or other mainstream languages such as Java / C++.
  • Familiarity with game logic, or strong interest in game systems development.
  • Practical experience in handling SQL-based databases (PostgreSQL / MySQL).
  • Comfortable working in Linux environments, with tools such as Git, Docker.
  • Experience designing and maintaining RESTful APIs.
  • Fluent in Mandarin and proficient in English (team working languages).
  • Preferably with consistent career history (not predominantly short-term roles under 1 year).

**Nice to Have:

  • Experience with game server development or multiplayer game systems.
  • Understanding of distributed architecture (CAP/BASE/ACID).
  • Familiarity with blockchain games or smart contract integrations.
  • Exposure to CI/CD pipelines and automated testing frameworks.
  • Experience working on high-concurrency backend platforms or large-scale products.
  • Game platform or SDK development experience is a strong bonus.

**Benefits:

  • Private medical insurance
  • Company pension scheme
  • Paid sick leave
  • Mental health & wellbeing support programmes
  • A fast-moving, collaborative team with flat structure
  • Opportunity to work on high-impact systems at scale

**Ready to Apply?

If you're a backend developer with real-world experience and a passion for building game systems, apply now to join our fast-growing team.

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