Senior Software Engineer - Network Transport (C++)

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

Salary: $243,290–$295,250 USD base pay annually, plus potential equity compensation and benefits.

Company

Roblox builds a platform and tools for creating and experiencing large-scale 3D interactive games and social experiences.

What you will do

• Develop network transport systems that synchronize game state for millions of users.
• Improve user-space networking performance, scalability, latency, and throughput in client-server environments.
• Support networking across desktop, mobile, and console clients.
• Work across the game platform and engine to enable near-synchronous multiplayer experiences.
• Analyze CPU, operating-system, and memory behavior to reduce delays in network exchanges.

Requirements

• 7+ years of software engineering experience in game networking within a game engine or studio.
• Strong systems-level C++ programming experience, including smart pointers, templates, virtual functions, and memory management.
• Deep understanding of network stacks and experience with Linux networking.
• Experience with QoS, congestion control algorithms, multithreaded distributed systems, and open-source networking.
• Experience working on game engines and understanding their architecture.
• Ability to work onsite in San Mateo Tuesday through Thursday for office-based roles.

Culture & Benefits

• Work on large-scale systems used by tens of millions of people worldwide.
• Contribute to safer and more civil shared digital experiences.
• Full-time employees are eligible for equity compensation and company benefits.
• Roblox provides equal employment opportunities and reasonable accommodations during the recruiting process.
• Future H-1B sponsorship may not be supported, and certain U.S. visa categories may not be eligible for employment.