Roblox
Principal Software Engineer
$295K–$345K
San Mateo, CA, United States · Principal · Full-time · Posted Jun 23, 2026
- Experience
- 10+ years in large-scale backend/distributed systems; 4+ years as a tech lead.
- Education
- BA/BS in Computer Science, Engineering, or a related technical field—or equivalent experience.
- Visa sponsorship
- For US-based roles, Roblox 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
Leads the design and development of Roblox’s Safety Foundation platform, scaling safety infrastructure and integrating AI/ML workflows while improving developer experience.
What you'll do
- Set technical direction and lead implementation of scalable, cost-efficient backend infrastructure designed for 10x traffic growth.
- Architect AI-first, agentic and ML-integrated safety workflows with production-grade security, auditability, and reliability.
- Build reusable developer tools and platform capabilities; partner with safety and product teams, and mentor engineers.
What they ask for
- 10+ years building large-scale backend/distributed systems and shipping production systems.
- 4+ years as a tech lead setting direction, driving execution, and growing engineers.
- Deep proficiency in Go or a similar compiled language; experience with NoSQL databases at scale.
- BA/BS in Computer Science, Engineering, or a related technical field—or equivalent experience.
Nice to have
- Developer platform experience is strongly preferred.
- CQRS and Event Sourcing experience; AI/ML platform integration experience or strong interest.
Pay
$295,250 — $345,040 USD annual base salary
Tools
Go, DynamoDB, Cassandra, CQRS, Event Sourcing
AI focus
Drive the platform’s AI-first transformation, including agentic and ML-integrated safety workflows, pipelines, and HITL workflows.
Model-written summary · the original posting is authoritative