Hiring: Senior Software Engineer, Runtime Company: Roblox Location: San Mateo, CA Job Posted Time: 2026-09-11 12:09:31 Employment Type: Full-time Target Skills & Keywords : Android, C++, REST, iOS About the job Required Skills: •Own the scheduler and fiber runtime that the rest of the engine is built on, research and implement the performance work needed for 3K-player servers and genre expansion initiatives, and act as the point of contact other engine teams come to with concurrency asks. •Debug real production failures across PC, Mac, mobile, and console, and build deep intuition for how compilers, CPU architectures, and operating systems interact. Qualifications: •Strong modern C++ (C++17 or newer) in a large, complex production codebase •Deep multithreading/concurrency experience — schedulers, thread pools, lock-free programming, atomics, memory models •Comfort profiling and reasoning about performance at the OS/CPU level •Game engine or real-time systems experience •Fiber/coroutine runtimes, work-stealing or job-system schedulers •Cross-platform low-level development (Android, iOS, console) •Track record as the go-to expert other teams consult on a system Compensation: •$196,750 - $243,290 / year Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!