# Member of Technical Staff — Performance 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: 2026-05-17
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/radixark/jobs/4250681009
- Page: https://www.1752.vc/careers/jobs/radixark-member-of-technical-staff-performance/

## About the role

RadixArk is hiring a Member of Technical Staff — Performance in Palo Alto, CA — someone who can push LLM inference and training systems to the limit across real production workloads.

## What they're looking for

- Strong systems engineering background, especially in performance-critical software
- Experience with GPU systems, distributed systems, inference serving, ML runtimes, or high-performance computing
- Familiarity with profiling tools, performance debugging, tracing, and benchmark methodology
- Comfort working with Python and C++
- Experience with CUDA, Triton, Pallas, ROCm, XLA, or kernel-level optimization is a strong plus
- Understanding of LLM inference concepts such as batching, KV cache, prefill/decode, speculative decoding, MoE, long context, and P99 latency

Tags: Member of Technical Staff