Senior Software Engineer (Backend), Co-Experience
Core
Build and maintain backend services for Roblox's Party System, enabling users to coordinate, form groups, and stay connected across servers while ensuring safe, civil interactions.
Role type
Senior Backend Software Engineer (Social Infrastructure)
Builds
Platform-level Party System for social coordination and group formation
Domain
Gaming / Social Networking / Real-time Systems
Deliverable
production ML models | product features | infrastructure
Required skills
Microservice architecture design, Scalability engineering, Reliability engineering, Server-side development (C#/C++/Java/Golang), API design for high concurrency, Technical design documentation, AI-assisted development
Preferred skills
Cross-functional collaboration, Mentorship, Product ownership, AI advocacy
Technologies
C#, C++, Java, Golang
Responsibilities
Drive end-to-end ownership of projects from architecture to launch, Scale the party system for millions of concurrent users, Partner with matchmaking/voice/economy teams to integrate systems, Uphold quality standards with live production traffic, Raise team technical bar and accelerate junior engineers
Seniority
Senior, hands-on IC with mentorship responsibilities