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# Senior Software Engineer (C++)

- **Company:** Roblox
- **Location:** Canada, KY, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Profiling, Roblox
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_2e6eb4ea40ad60ac930b99aa5011f3a9

## About the Role

* 3+ years of experience writing high-quality, performant C++ code in large, complex codebases
 * A proven track record of building reliable measurement, monitoring, or regression prevention systems.
 * The 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., * Hands-on experience with on-device profiling (iOS and/or Android) to find and measure optimization opportunities.

## Description

* Own the end-to-end performance of the Roblox client across all platforms directly moving the needle on our 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.