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Roblox

Runs a platform where users build and play games

Principal Software Engineer

Game EngineeringConfirmed live in the last 24 hours
Full-timeSan Mateo, CA, USA

About the Job

Requirements

  • At least 8 years of experience and expertise with C++ code-generation and analysis tools, such as libclang and Abstract Syntax Trees.
  • Outstanding systems-level C++ programming skills.
  • Curiosity about the CPU-level behavior of smart pointers, templates, virtual functions, and structured and raw memory.
  • A BS or MS in Computer Science, or equivalent practical experience.
  • Ability to build systems that work and continue working optimally.
  • Attention to potential failure cases and diligence in automated testing.

Responsibilities

  • Develop engine code that performs well for all user-created games on the Roblox platform.
  • Establish the foundational architecture and technical direction for the team.
  • Work cross-functionally across teams and technology platforms to deliver high-quality functionality.
  • Lead by example and mentor engineers to implement technological best practices, patterns, and strategies.
  • Improve product quality by encouraging automation testing.
  • Take ownership of projects throughout their full lifecycles.
  • Execute on all supported devices, from desktop clients to mobile phone clients to console clients.

Desired Qualifications

  • Familiarity with game engines or other large-scale simulations.
  • Stay up-to-date on technology developments.

About the Company

Roblox

Runs a platform where users build and play games

Roblox runs an online platform where people play, chat, and hang out in 3D games built by its users rather than by the company itself. In 2025, Grow a Garden, a game a teenager made on Roblox, set the record for the most people playing one video game at the same time. Creators build games with Roblox Studio, a free design tool, and players join through the free Roblox app on phones, computers, game consoles, and VR headsets. Roblox makes money by selling Robux, a virtual currency players spend on avatar items and in-game extras, and it shares part of that spending with creators, who can exchange their Robux for real money. Roblox was founded in 2004 and is based in San Mateo, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Mateo, CA
Founded
2004

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