RadixArk
Member of Technical Staff — Reliability-CI Infrastructure
$200K–$400K
Palo Alto +1 · On-site · Staff · Full-time · Posted Apr 20, 2026
- Location
- Palo Alto
San Francisco - Experience
- 3+ years operating CI/CD at scale.
About the job
Own and improve the CI infrastructure for SGLang, making GPU testing reliable, secure, and faster for contributors.
What you'll do
- Operate CI end-to-end: triage failures, distinguish regressions from flaky tests or infrastructure issues, and keep main green.
- Build regression-based checks and harden runners, including ephemeral runners and isolation for fork PRs.
- Reduce CI cycle times and improve developer feedback through test-suite optimization and workflow orchestration.
What they ask for
- 3+ years operating CI/CD at scale.
- Deep Linux, Docker, and GPU computing knowledge; self-hosted runner management experience.
- Strong Bash and Python skills, with a security mindset around CI supply-chain risks and runner hardening.
- Experience with NVIDIA GPU drivers, CUDA, NCCL, and InfiniBand/RDMA in CI contexts; familiarity with ML inference workloads.
Nice to have
- Large open-source project CI experience (100+ contributors).
- AMD ROCm or Intel XPU CI pipelines.
Pay
$200,000 - $400,000 USD (base salary)
Tools
GitHub Actions, Buildkite, Jenkins, GitLab CI, Linux, Docker, Bash, Python
Model-written summary · the original posting is authoritative