Principal Software Engineer, Real-Time Audio & Video

Roblox; California (MO); On-site; USD 295,000 - 345,000; Full time

Job summary

Roblox is seeking a Principal Software Engineer for the Audio-Video-Communication team to build a scalable real-time communication platform supporting billions of users. The role focuses on C++ development, performance optimization, and cross-device features.

You will collaborate with managers and engineers across engine teams, report to the Real-Time Communications group, and contribute to resilient, high-quality software that enables voice chat, 3D audio, and large-scale broadcasting.

Qualifications

• 8+ years of experience developing and deploying user-facing software products.
• Experience deploying a high-quality, multi-service distributed system at scale.
• Proficiency in C++ and understanding of parallel/concurrent programming concepts.

Responsibilities

• Build and launch the latest real-time communication platform from the ground up for billions of users.
• Write efficient, maintainable, and scalable code.
• Introduce high-quality communication features across devices from mobile to high-end platforms.
• Enhance robustness and performance of existing components.
• Collaborate with engine and partner teams to create synergistic solutions.

Skills

C++

Parallel programming

Concurrency

Distributed systems

Performance optimization

Tools

Kernel

Assembly

Job description

Roblox is seeking a Principal Software Engineer for the Audio-Video-Communication team to build a scalable real-time communication platform supporting billions of users. The role focuses on C++ development, performance optimization, and cross-device features.

You will collaborate with managers and engineers across engine teams, report to the Real-Time Communications group, and contribute to resilient, high-quality software that enables voice chat, 3D audio, and large-scale broadcasting.