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# Software Engineer

- **Company:** Roblox
- **Location:** San Mateo, CA, United States
- **Experience:** Expert
- **Salary:** $196,750.0 - $243,290.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, C Sharp (Programming Language), Cloud Computing, Code Review, Distributed Systems, Routing, Session Management, Systems Integration, Workflow Management Systems, Large Language Models, Backend, Agentic-AI, Kubernetes, Information Technology, Roblox, Machine Learning Operations, Golang
- **Published:** November 5, 2026
- **Apply:** https://careers.roblox.com/jobs/8311454?gh_jid=8311454

## About the Role

* 5+ years of experience building and operating backend or distributed systems in production.
 * Proficiency in C#, Java, Go, or a similar language.
 * Experience with cloud infrastructure, containerized services, and workflow or job orchestration systems (e.g., Temporal, Kubernetes).
 * A track record of owning services end-to-end: design, launch, monitoring, and incident response.
 * A BS in Computer Science or a related field, or equivalent professional experience.

You Are:

 * Curious about LLMs and agentic systems, and eager to work on how they behave in production.
 * Pragmatic. You ship iteratively and let data and evals guide decisions.
 * Experienced building on LLM APIs, agent frameworks, or eval pipelines (bonus).

## Description

As a Senior Software Engineer on the Build Platform team, you will build the cloud infrastructure that powers AI-driven creation on Roblox. Build lets anyone make a game by describing it, on mobile and in Studio. Creators can generate a playable experience from a sentence, iterate on it, playtest, and publish. Our team owns the platform underneath: the cloud-hosted agent harness, tools and skills, and evaluation framework.

You'll work on the systems that make agents run well at scale: long-running workflow orchestration, model integration and routing, tool execution, sandboxed game sessions, evals, and the observability, safety, and cost controls that let us ship to millions of creators.

You Will:

 * Design, build, and operate services in the agent platform, including orchestration, session management, model routing, and tool/skill execution.
 * Improve the reliability, latency, and cost of multi-step agent workflows running in production.
 * Build and extend evaluation infrastructure so teams can measure quality and catch regressions before they reach creators.
 * Partner with Build product teams, ML infrastructure, and Safety to ship new capabilities quickly and safely.
 * Participate in on-call and help raise the bar for operational excellence.
 * Write clear technical specs, review code, and mentor other engineers.