Senior Backend Engineer

JR United Kingdom; Chelmsford; Remote; GBP 60,000 - 85,000; Full time

Job summary

A renowned AAA co-development studio is seeking a Senior Backend Game Engineer to contribute to the backend systems of their multiplayer games. In this remote position, you will utilize your expertise in C++, C#, Go, and NodeJS to enhance gameplay experiences across platforms, collaborating with top-tier teams in the industry.

Qualifications

• Proven expertise in backend programming with 5+ years of experience.
• Knowledge in C++, C#, Go, or NodeJS.
• Strong understanding of real-time networking and distributed systems.

Responsibilities

• Design and build high-performance backend systems for multiplayer gameplay.
• Develop matchmaking, lobby, authentication, and orchestration systems.
• Optimize and scale backend systems for performance and reliability.

Skills

Backend Programming

WebSockets

REST APIs

gRPC

Problem-Solving

Team Collaboration

Job description

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UK Remote | Full-Time

We’re partnering with a renowned AAA co-development studio that specialises in tackling the toughest challenges in multiplayer game development. This fully remote team, distributed globally, is known for their ability to scale player counts, maximise density, and deliver truly immersive experiences in some of the world’s most innovative online games.

Their engineers work hand-in-hand with top-tier studios across the industry, seamlessly embedding within internal teams to bring ground breaking multiplayer titles to life. With communication, transparency, and engineering excellence at their core, this team has contributed to major global releases, and they're looking to grow.

We’re now hiring a Senior Backend Game Engineer to join this elite studio. In this role, you’ll be a key contributor to the backend systems that power scalable, real-time multiplayer games enjoyed by millions.

What You’ll Do

• Design and build high-performance backend systems to support online multiplayer gameplay across various platforms.
• Develop matchmaking, lobby, authentication, and orchestration systems to provide seamless player experiences.
• Create robust backend services using technologies such as C++, C#, Go, and NodeJS.
• Work closely with gameplay, networking, and DevOps teams to integrate systems with minimal latency.
• Optimise and scale backend systems for performance, reliability, and cost-efficiency.
• Develop APIs and microservices that facilitate smooth client-server communication.
• Contribute to planning and documentation processes with accurate scoping and delivery estimates.

What We’re Looking For

• Proven expertise in backend programming and proficient in at least two of: C++, C#, Go, or NodeJS (C++ and C# preferred).
• 5+ years of professional experience in backend systems, ideally in the gaming industry.
• Deep knowledge of real-time networking: WebSockets, RPCs, REST APIs, gRPC, etc.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Strong understanding of distributed systems, data structures, and algorithms.
• Familiarity with matchmaking logic, player sessions, and cheat prevention systems.
• Hands-on with microservices, Docker/Kubernetes, and orchestration tools.
• Strong communication, problem-solving, and team collaboration skills.

Bonus Points For

• Experience with GBaaS platforms like PlayFab, AccelByte, Nakama, or Pragma.
• CI/CD and modern DevOps tools.
• Knowledge of major online platforms: Xbox Live, PSN, Steam, Nintendo.
• Understanding of Unreal Engine 5 networking and multiplayer architecture.