Job Description

Salary: $100,000 - 100,000 per year Requirements:

• Strong Java fundamentals, including a solid grasp of the JVM, multithreading, and concurrent programming
• Proficiency with WebSocket, socket.io, and similar real-time communication technologies
• Hands-on experience with Netty for high-performance, low-latency network applications
• Experience designing and developing RESTful APIs
• Familiarity with Protobuf or comparable serialization formats such as FlatBuffers or Thrift
• Strong understanding of high-concurrency and distributed system design, including load balancing and horizontal scaling
• Experience with relational databases such as MySQL or PostgreSQL, plus caching with Redis
• Familiarity with common frameworks such as Spring Boot and Netty
• Experience deploying and operating services on AWS, including EC2, ECS/EKS, RDS, ElastiCache, and S3
• Strong troubleshooting and performance tuning skills
• Fluent Mandarin Chinese
• Experience in backend development, especially game and real-time service backends, is preferred
• Experience delivering and operating at least one live game or online product end to end is preferred
• Experience supporting Unity-based games on the backend and collaborating on networking and protocol design is preferred
• Experience shipping lightweight social or instant games, such as Telegram mini-games, including bot API, authentication, and payments, is preferred
• Proven ability to build systems that support high concurrency and large volumes of simultaneous users, such as tens of thousands of CCU, is preferred
• Experience designing real-time communication architectures for latency-sensitive applications is preferred
• Experience working in cross-functional teams with client engineers, game designers, QA, and operations is preferred
• Prior experience in game backend or real-time multiplayer projects is strongly preferred
• Familiarity with Node.js for backend services or tooling is preferred
• Experience with Telegram mini-games, Mini Apps, or other instant and social platform games is preferred
• Familiarity with message queues such as Kafka or RabbitMQ is preferred
• Experience with Docker and Kubernetes is preferred
• Experience building matchmaking, leaderboards, and anti-cheat systems is preferred
• Ability to commute to Irvine, CA 92618 and relocate there before starting work

• Design and operate backend services that power our Unity-based titles and Telegram mini-games
• Build real-time communication, game state synchronization, matchmaking, and live operations capabilities
• Solve high-concurrency and low-latency challenges for live player experiences
• Collaborate closely with Unity client engineers on networking and protocol design
• Work with cross-functional partners, including client engineers, game designers, QA, and operations
• Develop and support game-specific backend systems such as matchmaking, leaderboards, and anti-cheat
• Deploy and manage services in cloud environments and support ongoing performance optimization

• API
• AWS
• Backend
• Cloud
• Docker
• EC2
• Support
• JVM
• Java
• Kafka
• Kubernetes
• Load Balancing
• MySQL
• Network
• PostgreSQL
• RabbitMQ
• Redis
• Spring
• Spring Boot
• Unity
• NodeJS
• GameDev

More:

We are building real-time multiplayer and social games, including Unity-based titles and Telegram mini-games, and our work directly supports live players. This is an in-person role based in Irvine, CA 92618. We offer a competitive salary starting from $100,000 per year along with benefits including 401(k), 401(k) matching, dental, health, vision, paid sick time, and paid time off.

last updated 32 week of 2026

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