Greenhouse ·
full-timeSenior Software Engineer, Game Engine
Roblox · San Mateo, CA, United States
Roblox operates a user‑generated platform where millions of people create, play and share 3D experiences across devices. The Geometry Scalability team focuses on the engine systems that handle avatar and environment geometry, ensuring high‑fidelity content runs smoothly on everything from high‑end PCs to low‑end smartphones. In this senior role you will design and ship core 3D systems such as mesh processing, level‑of‑detail, transcoding, streaming and runtime loading, while profiling and improving performance across a wide range of hardware, especially mobile. You will work closely with rendering, avatar and studio teams, and with external developers, to make sure the features you build are usable in real‑world experiences. The position suits engineers with strong C++ skills, proven experience building real‑time 3D or game‑engine systems, and a track record of taking ambiguous problems from concept through production, mentoring peers and maintaining code quality.
Education
- Level: Bachelor's degree
Key Skills
Notes
['Annual Salary Range $243,290 — $295,250 USD', 'Location: San Mateo, CA']
Experience required
8-8 years experienceAbout the Role Roblox's Geometry Scalability team builds systems for avatars and environments, enabling high‑fidelity worlds to run on phones and low‑end devices. The role designs and ships 3D engine systems, partners with rendering, avatar, and studio teams, and leads projects end‑to‑end. Responsibilities Design and ship 3D engine systems for avatar and environment geometry, including mesh processing, level of detail, transcoding, streaming, runtime loading, and performance systems. Profile and improve game engine performance across devices, especially mobile. Mentor engineers and uphold code quality. Collaborate with cross‑functional teams and external developers. Requirements 8+ years of professional experience building high‑performance systems (game engines, real‑time simulation, robotics, AR/VR). Strong C++ proficiency. Hands‑on experience with real‑time 3D rendering, mesh/geometry processing, LOD, animation/skinning, spatial data, or GPU performance. Experience optimizing CPU/GPU time, memory, loading latency, visual quality, and frame‑time stability on constrained platforms. Ability to drive ambiguous projects end‑to‑end and communicate across teams.
Skills for this role
Required skills
Also mentioned in the listing
| Role | Senior Software Engineer, Game Engine |
|---|---|
| Company | Roblox |
| Location | San Mateo, CA, United States |
| Compensation | Not disclosed |
| Posted | 2026-09-30 |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
Before you apply
0/4More at Roblox
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