Java Game Server Engineer

Omnilojo; Singapore; On-site; SGD 110,000 - 180,000; Full time

Job summary

Omnilojo is seeking a Java Game Server Engineer to lead architecture and build scalable backend systems for a live game.

You will optimize performance, networking and data paths, solve complex bottlenecks, and develop internal tooling while maintaining comprehensive docs for long-term operations.

Qualifications

• BS in Computer Science or related field or equivalent experience.
• 3+ years of server-side development experience in game industry.
• Strong Java skills and understanding of JVM internals and performance tuning.
• Proficiency in Linux environments.
• Strong understanding of concurrency, multi-threading and async messaging/queues.
• Experience with socket/network programming.
• Experience with databases (Redis, MySQL, MongoDB) and performance optimization.
• Familiarity with design patterns, algorithms, and data structures.
• Proven ownership, clear communication and independent problem solving.
• Strong English communication; Mandarin helpful for cross-functional collaboration.

Responsibilities

• Lead architecture design of game server systems, including protocols and module breakdown.
• Build and maintain core server features with ongoing refactoring.
• Drive performance, networking and data optimizations for stability and scalability.
• Resolve bottlenecks and implement key framework components and core logic.
• Build internal tools to improve development and iteration efficiency.
• Write and maintain technical docs to support long-term productivity.

Skills

Java

JVM internals

Performance tuning

Concurrency

Multi-threading

Socket programming

Database optimization

Linux

English communication

Mandarin collaboration

Education

Bachelor's degree in Computer Science

Tools

Redis

MySQL

MongoDB

Job description

We're looking for a Java Game Server Engineer to help build and scale the backend for our game. You'll take ownership of core server systems, performance optimization, and technical foundations that support long-term live operations.

What You'll Do

• Lead the architecture design of game server systems, including communication protocols and module/service breakdown.
• Build and maintain core server features, with ongoing refactoring and codebase improvements.
• Drive performance, networking, and data optimizations to ensure stability, scalability, security, and efficiency.
• Solve complex technical bottlenecks and implement key framework components and core server logic.
• Build internal tools that improve development and iteration efficiency.
• Write and maintain technical documentation to support long-term team productivity.

What We're Looking For

• Bachelor's degree in Computer Science or a related field (or equivalent experience).
• 3+ years of server-side development experience in the game industry.
• Strong Java skills, with solid understanding of JVM internalsand performance tuning.
• Proficiency in Linux environments.
• Strong understanding of concurrency (multi-threading, multi-process architecture, async messaging/queues).
• Experience with socket/network programming.
• Experience with databases such as Redis, MySQL, MongoDB, including performance optimization.
• Familiarity with design patterns, algorithms, and data structures.
• Strong ownership, clear communication, and ability to solve complex problems independently.
• Strong communication skills in English, with working proficiency in Mandarin for cross functional collaboration with Mandarin-speaking stakeholders (players/regional team members).

Bonus Points

• Python scripting experience (internal tooling, automation).
• Experience building high-concurrency, high-availability distributed systems.
• Experience shipping and supporting a fully launched game.