Senior Cross-Platform Performance Engineer

Roblox; California (MO); On-site; USD 196,000 - 242,000; Full time

Benefits offered by this job

Equity compensation

Office-based role in San Mateo (onsite

Job summary

Roblox is seeking a Senior Software Engineer to improve performance of the Roblox client across Android, iOS, macOS, Windows, Xbox, PlayStation, and TV. You will work primarily in cross-platform C++ engine code, partnering with teams across the company to identify bottlenecks, ship measurable improvements, and prevent regressions over time.

You will own end-to-end performance, build benchmarking and telemetry systems, and collaborate with Engineering, Product, and Design to evaluate technical

Qualifications

• 3+ years of experience writing high-quality, performant C++ code in large, complex codebases.
• Proven track record of building reliable measurement, monitoring, or regression prevention systems.
• Ability to autonomously navigate complex, ambiguous systems and deliver stable, production-grade software.
• Exceptional communication skills to discuss technical trade-offs with engineering peers and cross-functional partners.

Responsibilities

• Own the end-to-end performance of the Roblox client across all platforms, moving key metrics such as TTI, app size, and battery usage.
• Build benchmarking, profiling, and telemetry systems to detect regressions and scale the application.
• Collaborate with Engineering, Product, and Design to evaluate trade-offs and execute rollout plans.

Skills

C++

Performance optimization

Telemetry systems

Job description

Roblox is seeking a Senior Software Engineer to improve performance of the Roblox client across Android, iOS, macOS, Windows, Xbox, PlayStation, and TV. You will work primarily in cross-platform C++ engine code, partnering with teams across the company to identify bottlenecks, ship measurable improvements, and prevent regressions over time.

You will own end-to-end performance, build benchmarking and telemetry systems, and collaborate with Engineering, Product, and Design to evaluate technical