Principal Software Engineer (WebRTC)

Location: San Mateo, California, United States. Office-based roles require onsite attendance Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday.

Salary: $295,250–$345,040 USD base pay annually, plus potential equity and benefits.

Company

Roblox builds a platform and tools for creating and experiencing 3D immersive digital experiences.

What you will do

• Build and launch a real-time communication platform designed to support billions of users.
• Develop voice chat, 3D audio, and large-scale broadcast capabilities across mobile, console, and high-end platforms.
• Write efficient, maintainable, scalable C++ software using industry best practices and design patterns.
• Improve the robustness and performance of existing real-time communication components.
• Collaborate with engineers across the engine and partner teams to deliver integrated solutions.

Requirements

• 8+ years of experience developing and deploying user-facing software products.
• Experience deploying high-quality, multi-service distributed systems at scale.
• Proficiency in C++ and understanding of parallel and concurrent programming.
• Experience with performance optimization involving kernel work, assembly, C, and memory management.
• Understanding of constrained platforms such as consoles and mobile devices.
• Ability to work onsite in San Mateo on Tuesday through Thursday.

Culture & Benefits

• Work on products used by a global community of developers and creators.
• Collaborate with experienced engineering teams working on large-scale social and communication systems.
• Full-time employees are eligible for equity compensation and company benefits.
• Roblox provides equal employment opportunities and reasonable accommodations during the recruiting process.