Principal Software Engineering, Roblox
App Performance (C++)
$295.3-345k
More information about location
3+ days a week in office (San Mateo, CA)
Online gaming & entertainment platform
Be an early applicant
Online gaming & entertainment platform
1001+ employees
Be an early applicant
$295.3-345k
More information about location
3+ days a week in office (San Mateo, CA)
1001+ employees
Company mission
To connect a billion people with optimism and civility.
Role
Who you are
- 10+ years of experience: working in C++ with a track record of writing high-quality, performant code in large and complex codebases
- Comfort with ambiguity: able to dive into unfamiliar codebases, unblock yourself, and take projects from greenfield/MVP → production-grade
- Mobile performance expertise: hands-on experience improving performance on mobile platforms (iOS and/or Android), including on-device profiling to find and measure opportunities
- Systems thinking: ability to build systems that work and keep on working reliably (measurement, monitoring, regression prevention)
What the job involves
- The Consumer App Foundation team is looking for a Principal Software Engineer to improve Roblox client performance across our supported platforms
- You’ll work primarily in cross-platform C++ Roblox game engine code, partnering with teams across the company to identify bottlenecks, ship measurable improvements, and prevent regressions over time
- Our team owns the end-to-end performance of Roblox. We tackle the platform’s most difficult technical constraints—from speed and responsiveness to efficiency and stability —ensuring a high-performance experience across all of our devices and platforms: mobile, desktop, and console
- Conduct research, create and drive execution of roadmaps aimed to improve efficiency of Roblox on target platforms
- Design novel solutions to optimize performance and computing resources usage of Roblox client app
- Profile and diagnose real-world performance on iOS or Android to identify bottlenecks, validate wins, and prevent regressions using platform tooling
- Build and productionize repeatable benchmarks/experiments, CI/CD automation to catch regressions early, dashboards/alerts with actionable signals
- Work with stakeholders across Engineering, Product, and Design to align on priorities, tradeoffs, and rollout plans; ensure performance improvements support the user experience
- Deliver improvements and guardrails that scale across mobile, desktop, and console, with informed tradeoffs for mobile constraints
Our take
Online gaming may be a well-established space, but Roblox has distinguished itself as a leader by empowering its community to build, share, and profit from their own creations - turning game development into an accessible, rewarding ecosystem for millions of users.
In addition to standard games, the platform offers virtual worlds and other experiences to explore and interact with. Its platform provides an online ecosystem for millions to create, socialize, chat, and explore immersive experiences with friends. In fact, in the US its used by two-thirds of children aged 9 to 12.
The platform has faced scrutiny over user safety, but responded by strengthen parental controls and launching initiatives like its "Parents Council". This move to address these issues, atop its strong financial performance and record payouts to developers, showcase Roblox's trajectory as one of innovation and impressive growth.
Freddie
Company Specialist at Welcome to the Jungle
Insights
25% employee growth in 12 months
Company
Funding (last 2 of 9 rounds)
Jan 2021
$520m
SERIES H
Feb 2020
$150m
SERIES G
Total funding: $922.8m
Company HQ
South San Mateo, San Mateo, CA
Leadership
David Baszucki
(Founder & CEO)Studied Electrical Engineering at Stanford before founding Knowledge Revolution in 1990, where they spent 9 years as CEO. They worked as VP of MSC.Software for 2 years, and started Roblox in 2005.
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