Senior Software Engineer - Game Engine Systems (C++)

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

Company

Roblox develops a platform and tools for creating and experiencing 3D digital games and immersive social experiences.

What you will do

• Develop game engine networking systems that communicate game state in real time.
• Improve network scale, performance, latency, and throughput in client-server environments.
• Build systems supporting millions of users across desktop, mobile, and console clients.
• Work across the game platform to enable nearly synchronous multiplayer experiences.
• Optimize network exchanges at millisecond-level precision and reduce processing waste.

Requirements

• 7+ years of experience in game networking from a game engine or game studio environment.
• Experience with a user-space network stack and large-scale multithreaded distributed systems.
• Strong systems-level C++ programming skills, including smart pointers, templates, virtual functions, and memory management.
• Deep understanding of network stacks and experience with Linux networking, QoS, and congestion control algorithms.
• Understanding of game engine architecture and operating-system-level code execution.

Culture & Benefits

• Full-time employees are eligible for equity compensation and company benefits.
• Roblox supports equal employment opportunities and reasonable accommodations during the recruiting process.
• For US-based roles, certain US visa categories may not be supported, and future H-1B sponsorship may be unavailable.