# Member of Technical Staff — Reliability-CI Infrastructure at RadixArk

- Company: RadixArk
- What the company does: RadixArk builds large-scale inference and training systems for the entire AI community, making frontier-level AI infrastructure open and accessible. Backed by Accel.
- Company website: https://www.radixark.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: Palo Alto, CA
- Work setup: On-site
- Pay: $200K to $400K base salary per year (USD)
- Posted: 2026-04-20
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/radixark/jobs/4226122009
- Page: https://www.1752.vc/careers/jobs/radixark-member-of-technical-staff-reliability-ci-infrastructure/

## About the role

RadixArk is hiring a Member of Technical Staff — CI / Infrastructure to own the infrastructure that keeps SGLang moving. Our CI system runs 300+ GPU tests across NVIDIA, AMD, Intel, and Ascend hardware pools, gating every commit to one of the fastest-growing open-source LLM inference engines. When CI is green and fast, 100+ contributors ship with confidence. When it isn't, the entire project stalls. That bottleneck is your problem to solve.

## What they're looking for

- Deep Linux, Docker, GPU computing knowledge
- Self-hosted runner management experience
- Strong Bash and Python
- Security mindset — CI supply chain risks, fork PR attack vectors, runner hardening
- NVIDIA GPU drivers, CUDA, NCCL, InfiniBand/RDMA experience in CI contexts
- Familiarity with ML inference workloads (model loading, KV cache, quantization)

Tags: Member of Technical Staff