Roblox

Senior Software Engineer (Backend), Co-Experience

$197K–$243K

San Mateo, CA, United States · Senior · Full-time · Posted Sep 14, 2026

Experience: 5+ years in microservice architectures; alternatively, 4+ years with a graduate degree in computer science or a related field. Also requires 3+ years building systems behind high-concurrency consumer-facing APIs.
Education: A graduate degree in computer science or a related field is stated as an alternative to the 5-year microservice experience requirement.
Visa sponsorship: For US-based roles, the company may be unable to employ candidates whose work authorization relates to certain U.S. visa categories, or support future H-1B sponsorship at this time.

About the job

Build and scale backend services for Roblox’s Party System, enabling safe, age-appropriate social interactions across experiences and servers.

Own projects end to end, from technical planning and architecture through launch and iteration.
Maintain and scale the Party System for millions of concurrent users, integrating with other systems safely and efficiently.
Improve production services, resolve escalations, and support the technical growth of the team.

5+ years working on microservice architectures and addressing scalability and reliability challenges, or 4+ years with a graduate degree in computer science or a related field.
3+ years building systems behind consumer-facing APIs that handle large numbers of concurrent users.
Strong server-side development and design skills, with proficiency in at least one compiled language such as C#, C++, Java, or Golang.
Experience using AI-assisted development tools and ability to author technical design documents suitable for architectural review.

$196,750 — $243,290 USD (base salary)

C#, C++, Java, Golang

Use and advocate for AI-assisted development tools to improve engineering velocity, navigate large codebases, and develop production-ready code.

Model-written summary · the original posting is authoritative