Senior Software Engineer, Cross-Platform Performance

OneClick Smart Resume; San Mateo (CA); On-site; USD 196,000 - 242,000; Full time

Job summary

Roblox in San Mateo, CA seeks a Senior Software Engineer to own the end-to-end performance of the Roblox client across Android, iOS, macOS, Windows, Xbox, PlayStation and TV. You will lead performance improvements with cross-platform collaboration and deliver measurable gains in speed and efficiency.

The role focuses on building benchmarking, profiling, and telemetry systems, working with Engineering, Product, and Design to balance trade-offs and deliver rollout plans.

Qualifications

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

Responsibilities

• Own the end-to-end performance of the Roblox client across all platforms directly moving the needle on key metrics: TTI, app size, battery usage and more.
• Build the benchmarking, profiling, and telemetry systems required to catch regressions early and continue scaling our application even further.
• Collaborate closely with stakeholders across Engineering, Product, and Design to evaluate technical tradeoffs, align on company-wide priorities, and execute smooth rollout plans.
• Drive deep technical impact by diving into complex, unfamiliar codebases, taking ambitious projects from greenfield MVP to production-grade, and mentoring peers on performance best practices.

Skills

C++

Performance profiling

Telemetry

Communication

Job description

Roblox in San Mateo, CA seeks a Senior Software Engineer to own the end-to-end performance of the Roblox client across Android, iOS, macOS, Windows, Xbox, PlayStation and TV. You will lead performance improvements with cross-platform collaboration and deliver measurable gains in speed and efficiency.

The role focuses on building benchmarking, profiling, and telemetry systems, working with Engineering, Product, and Design to balance trade-offs and deliver rollout plans.