# Senior Software Engineer - Traffic Proxy at Roblox

- Company: Roblox
- What the company does: Roblox is a global platform where millions of people gather together every day to imagine, create, and share experiences with each other in immersive, user-generated 3D worlds. Backed by Greylock, a16z and Index.
- Company website: https://about.roblox.com/
- Type: Startups
- Level: Senior
- Location: San Mateo, CA, United States
- Work setup: On-site
- Posted: 2026-09-21
- Apply by: 2026-11-05
- Apply: https://careers.roblox.com/jobs/8202168?gh_jid=8202168
- Page: https://www.1752.vc/careers/jobs/roblox-senior-software-engineer-traffic-proxy/

## About the role

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

## What they're looking for

- An experienced systems engineer with 7+ years building and operating backend or infrastructure software, including time owning a tier-0 service in production
- Fluent in a systems language. Rust strongly preferred, strong Go experience with the appetite to work in Rust is welcome
- Familiar with how the kernel and userspace interact, and comfortable tuning the kernel to optimize for efficiency and reliability
- Experienced with high-performance packet processing in and around the kernel — kernel-bypass and kernel-path techniques such as eBPF/XDP
- Able to independently design, build, and operate systems on Kubernetes end to end, and to reason about node-level behavior when latency and resource isolation matter
- Able to write a design doc that survives review by senior stakeholders across several teams, and to disagree productively when it doesn't

Tags: Software Engineering