Roblox
Senior Software Engineer, App Performance
$196K–$242K
San Mateo, CA, United States · Senior · Full-time · Posted Nov 3, 2025
- Experience
- 3+ years writing performant C++ code.
- Visa sponsorship
- For US-based roles, the company may be unable to employ candidates whose work authorization is related to certain U.S. visa categories or support future H-1B sponsorship at this time.
About the job
Improve Roblox client performance across supported platforms by identifying bottlenecks, delivering measurable optimizations, and preventing regressions.
What you'll do
- Own client performance across platforms, improving metrics such as TTI, app size, and battery usage.
- Build benchmarking, profiling, and telemetry systems to detect regressions.
- Partner across Engineering, Product, and Design on tradeoffs, priorities, rollouts, and performance practices.
What they ask for
- 3+ years writing high-quality, performant C++ in large, complex codebases.
- Track record building reliable measurement, monitoring, or regression-prevention systems.
- Ability to navigate complex, ambiguous systems and deliver stable, production-grade software.
- Strong communication skills for discussing technical tradeoffs with engineering and cross-functional partners.
Nice to have
- Hands-on on-device profiling experience on iOS and/or Android.
Pay
$195,780 — $242,100 USD annual base salary
Tools
C++, Android, iOS, macOS, Windows, Xbox, Playstation
Model-written summary · the original posting is authoritative