Senior Software Engineer – XR Runtime (C#/Unity) Location: London (3 days onsite, Kings Cross) Duration: 6 months (contract) Rate: £ 66.83p/h PAYE Hours: 40 hours/week Start Date: ASAP Join one of the most innovative companies shaping the future of augmented and virtual reality. We're seeking a Senior Software Engineer to support the development and optimization of immersive social experiences on a large-scale XR platform. If you're a generalist engineer with deep C#/Unity expertise and a passion for performance and reliability, this role is for you. What You’ll Be Doing: Enhance the runtime stability and performance of a cutting-edge VR platform. Work on Unity/C#/C++ systems, profiling and debugging complex codebases. Collaborate with global teams to ship reliable experiences in social XR. Improve internal telemetry, incident diagnostics, and CI/CD pipelines. Contribute to the core infrastructure behind multiplayer and creator tools. ✅ What We’re Looking For: Essential Skills: Strong experience with C# and Unity in a Windows development environment. Experience with C++, systems debugging, and runtime optimization. Familiarity with internal build tools (e.g., Buck, Bazel) and CI/CD systems. Prior experience in large-scale production environments. Bonus Skills: Experience with VR/AR hardware, especially Meta Quest or similar devices. Knowledge of performance and memory profiling tools. Exposure to tools like Phabricator, Sandcastle, or similar. Background in data engineering, SQL, or telemetry Work Environment: Join a highly collaborative, mission-driven team working on one of the most impactful XR platforms in the world. Office based 3 days per week in Central London. No weekend or shift work. Role does not involve direct financial data or user-sensitive data handling. ✨ Why Join: Work at the forefront of next-gen computing platforms. Make meaningful contributions to immersive, social-first XR experiences. Gain experience in a fast-moving, high-performance engineering team building real-world applications in mixed reality.