Prepin
Log in
Roblox

engineering opportunity

Senior Software Engineer, App Performance

As a Senior Software Engineer, you will work on improving application performance, size, battery efficiency, and stability. You will collaborate with various teams to define and implement plans for enhancing the performance and stability of Roblox client applications across all platforms.

San Mateo, California, United StateshybridFULL_TIME

Posted

About the role

What will you do at Roblox?

Every day, tens of millions of people come to Roblox to explore, create, play,

learn, and connect with friends in 3D immersive digital experiences– all created

by our global community of developers and creators.

At Roblox, we’re building the tools and platform that empower our community to

bring any experience that they can imagine to life. Our vision is to reimagine

the way people come together, from anywhere in the world, and on any device.

We’re on a mission to connect a billion people with optimism and civility, and

looking for amazing talent to help us get there.

A career at Roblox means you’ll be working to shape the future of human

interaction, solving unique technical challenges at scale, and helping to create

safer, more civil shared experiences for everyone.

The Consumer App Foundation team is looking for a Senior Software Engineer to

improve Roblox performance across our supported platforms. Our platform is used

by over 150M people daily. You will 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 is responsible for the end-to-end performance of the Roblox client on

Android, iOS, macOS, Windows, Xbox, Playstation and TV. We tackle the platform’s

most difficult technical constraints, ranging from speed and responsiveness to

efficiency and stability, to ensure a high-performance experience across all of

our devices and platforms.

You will:

* 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.

You have:

* 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.

Bonus:

* Hands-on experience with on-device profiling (iOS and/or Android) to find and

measure optimization opportunities.

For roles that are based at our headquarters in San Mateo, CA: The starting base

pay for this position is as shown below. The actual base pay is dependent upon a

variety of job-related factors such as professional background, training, work

experience, location, business needs and market demand. Therefore, in some

circumstances, the actual salary could fall outside of this expected range. This

pay range is subject to change and may be modified in the future. All full-time

employees are also eligible for equity compensation and for benefits as

described on this page [https://careers.roblox.com/total-rewards].

Annual Salary Range

$195,780—$242,100 USD

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday,

with optional presence on Monday and Friday (unless otherwise noted).

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.

For US based roles only, please note the Company may not be able to employ

candidates for this role who have United States work authorization related to

certain U.S. visa categories, or support future H-1B sponsorship at this time.

Which skills does this role require?

C++MultithreadingSystem ProgrammingPerformance BenchmarkingLuaScripting LanguagesConsumer ApplicationsPerformanceStabilityBattery EfficiencyMobileDesktopConsoles

Make your next move

Build a shortlist and prepare

Identify the requirements you can demonstrate, then choose examples from your work to discuss with the hiring team.

Review the responsibilities and requirements before adding an opening to your shortlist.

Role information can change. Confirm current details on the original application page.

Product

AI Candidate AgentCompaniesBrowse JobsDeep ProfileSkill AssessmentOpportunity Matching
Prepin.ai

© 2026 Prepin | All rights reserved.