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# Senior Software Engineer, Geometry Systems

- **Company:** Roblox
- **Location:** Canada, KY, United States
- **Experience:** Expert
- **Salary:** $243,290.0 - $295,250.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Computer Animation, 3D Rendering, C++ (Programming Language), Game Engine, Real Time Simulation, Spatial Data Infrastructures, Transcoding, Low Latency
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25304_33c5e3b74812ad956a3fb3c0cba9c8fe

## About the Role

* Proven Expertise: 8+ years of professional experience building and shipping high-performance systems in domains such as game engines, real-time simulation, robotics, AR/VR, or similar.
 * Strong C++ Experience: Deep proficiency in C++, with a focus on writing clean, efficient, and maintainable code in large codebases.
 * Applied 3D Systems Experience: Demonstrated hands-on experience building at least one production system involving real-time 3D rendering, mesh or geometry processing, LOD, animation/skinning, spatial data, 3D asset pipelines, or GPU/client performance. Deep specialization in one area is not required, but meaningful hands-on experience is.
 * Real-time Performance Mindset: Experience diagnosing tradeoffs among CPU/GPU time, memory, loading latency, visual quality, and frame-time stability on constrained platforms such as mobile or console.
 * Ownership in Ambiguity: A track record of driving work end-to-end when the problem wasn't fully specified: defining the approach yourself, seeing it through implementation, rollout, and production consequences; gathering more information when requirements didn't make sense.
 * Collaboration and Communication: Ability to work effectively across teams (Engine, Rendering, Avatar, Studio, and developer-facing teams) and explain complex technical topics clearly to different audiences.

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.

## Description

* Design and ship 3D engine systems for avatar and environment geometry, including mesh processing, level of detail, transcoding, streaming, runtime loading, and related performance systems.
 * Partner closely with other teams (Rendering, Avatar, Studio) and external developers so that the features you build are directly usable to create amazing experiences.
 * Profile and improve the performance of our game engine across a wide range of devices, with particular attention to mobile.
 * Lead by example: drive projects end-to-end, mentor other engineers, and help set a high bar for technical quality and code health on the team.