About the Role

We're looking for a Game Backend Developer to join our team building real-time multiplayer and social games. You'll design and operate the backend services that power our Unity-based titles and Telegram mini-games — handling everything from real-time communication and game state synchronization to matchmaking and live operations. If you enjoy solving high-concurrency, lowlatency challenges and want to see your work directly impact live players, we'd love to talk.

Required Qualifications

• Solid Java fundamentals (strong understanding of JVM, multithreading, and concurrent programming)
• Proficient with WebSocket / socket.io and other real-time communication technologies
• Hands-on experience with Netty for building high-performance, low-latency network applications
• Experienced in RESTful API design and development
• Familiar with Protobuf (or other serialization protocols such as FlatBuffers / Thrift)
• Solid understanding of high-concurrency and distributed system design, including load balancing and horizontal scaling
• Experience with relational databases (MySQL / PostgreSQL) and caching (Redis)
• Familiar with common frameworks (Spring Boot, Netty, etc.)
• Experience deploying and operating services on AWS (e.g., EC2, ECS/EKS, RDS, ElastiCache, S3)
• Strong troubleshooting and performance optimization skills
• Chinese mandarin fluent.

Preferred / Nice to Have

Preferred Experience

• Solid backend development experience, with a focus on game and real-time service backends
• Experience shipping and operating at least one live game or online product end-to-end
• Experience supporting Unity-based games on the backend, collaborating closely with Unity client engineers on networking and protocol design
• Experience shipping lightweight social/instant games (e.g., Telegram mini-games), including platform integration (bot API, authentication, payments)
• Proven experience building systems that handle high concurrency and large numbers of simultaneous online users (e.g., tens of thousands of CCU)
• Hands-on experience designing real-time communication architectures for latency-sensitive applications
• Experience collaborating in cross-functional teams (client engineers, game designers, QA, operations)

Nice to Have

• Prior experience in game backend / real-time multiplayer projects is strongly preferred
• Experience working alongside Unity client teams, with a good understanding of Unity client– server communication
• Familiarity with Node.js for backend services or tooling
• Experience building Telegram mini-games / Mini Apps (or other instant/social platform games)
• Familiarity with message queues (Kafka / RabbitMQ)
• Experience with containerization and orchestration (Docker / Kubernetes)
• Experience building game-specific systems such as matchmaking, leaderboards, and anti-cheat

Pay: From $100,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid sick time
• Paid time off
• Vision insurance

Language:

• Chinese (Required)

Ability to Commute:

• Irvine, CA 92618 (Required)

Ability to Relocate:

• Irvine, CA 92618: Relocate before starting work (Required)

Work Location: In person