Senior Software Engineer, App Performance

San Mateo, CAFull-time$196k2026-07-15 → 2026-11-11

Hybrid · United StatesNo visa sponsorship

Core

Improving end-to-end performance of the Roblox client across multiple platforms to optimize speed, responsiveness, efficiency, and stability for 150M+ daily users.

Role type

Senior Software Engineer (App Performance)

Builds

Roblox client application on Android, iOS, macOS, Windows, Xbox, PlayStation, and TV

Domain

Gaming / Real-time 3D Engine

Required skills

C++ (high-performance, large codebases), benchmarking, profiling, telemetry systems, regression prevention, cross-platform optimization

Preferred skills

on-device profiling (iOS/Android), greenfield MVP to production delivery

Technologies

C++, Android, iOS, macOS, Windows, Xbox, PlayStation, TV

Responsibilities

Own end-to-end performance metrics (TTI, app size, battery usage); Build benchmarking, profiling, and telemetry systems; Collaborate with stakeholders to evaluate technical tradeoffs; Drive deep technical impact in complex codebases; Mentor peers on performance best practices

Seniority

Senior, hands-on IC

About Roblox

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.