Principal C++ Engineer - Game Engine Data Architect

The Briefed; San Mateo (CA); On-site; USD 295,000 - 345,000; Full time

Benefits offered by this job

Onsite meals and campus facilities

Equity package

401(k) matching

Health insurance

Job summary

Roblox seeks a Principal Software Engineer for the Game Engine Data Model team in San Mateo. You will architect core data structures that power the Roblox platform and bridge engine capabilities to creators, covering rendering, scripting, networking, and physics across desktop, mobile, and consoles.

The role emphasizes leadership, advanced C++ expertise, and end-to-end project ownership, with a strong focus on automated testing and performance optimization across a large-scale real-time system.

Qualifications

• 8+ years of hands-on experience with C++ and systems-level programming.
• Deep understanding of CPU execution mechanics and low-level optimization.
• Bachelor or Master in Computer Science or equivalent experience.
• Proven reliability and quality mindset with automated testing focus.

Responsibilities

• Define architecture and technical direction for the Game Engine Data Model.
• Develop engine data-model framework and high-performance interfaces across components.
• Mentor engineers and promote best practices in C++ and testing.
• Own end-to-end lifecycle of data model projects from design to deployment.

Skills

C++ mastery

ASTs

Code generation

Performance optimization

Education

Bachelor’s or Master’s in CS

Tools

libclang

Job description

Roblox seeks a Principal Software Engineer for the Game Engine Data Model team in San Mateo. You will architect core data structures that power the Roblox platform and bridge engine capabilities to creators, covering rendering, scripting, networking, and physics across desktop, mobile, and consoles.

The role emphasizes leadership, advanced C++ expertise, and end-to-end project ownership, with a strong focus on automated testing and performance optimization across a large-scale real-time system.