Software Engineer, Engine Harmony

Roblox

San Mateo, Ca, United States
Onsite
Posted 2026-11-05

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Skills named in this job

C++
Machine learning

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Why do you want to join Roblox?
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Walk me through a system you built. How was it designed, and what would you change now?
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How do you decide what to test, and what does good code review look like to you?

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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.

As a Software Engineer on our Systems team, you will have an immediate impact on the building blocks of Roblox itself. The software you build is a very large application that empowers our global community of 2M+ developers to push the boundaries of interactive gaming. Your work will touch every part of the engine, from threading and memory management to physics and scripting. If you enjoy working on C++ software and have a passion for working on high-performance real-time applications alongside experienced and passionate engineers, you will be right at home on our growing Game Engine team.

You will:

Develop engine code in C++ for sub-systems critical to the Roblox game engine
Work on sub-systems to harmonize resource usage to ensure gameplay works on various devices with varying CPU, memory and bandwidth capabilities
Work on optimization techniques to improve player engagement
Work on every application Roblox develops, from mobile phone clients to cloud-based servers

You have:

2+ years of experience solving complex, system-level problems in large-scale codebases.
Deep proficiency in C++ experience is preferred, but not required.
Good understanding of core systems fundamentals and low-level performance considerations.
Experience developing and shipping machine learning models is a strong plus.
Experience working in the guts of a game engine or passion and curiosity for learning about this technology.
A curiosity to want to learn and stay up-to-date on technology development.

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.

Annual Salary Range

$153,120—$196,750 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.

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Listed on greenhouse · posted 2026-11-05. ApplySarthi collects openings and links to application pages; the role is advertised by Roblox, not by us.