# Member of Technical Staff — Inference-Kernel, Compiler & Communication 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: 2026-02-17
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/radixark/jobs/4134913009
- Page: https://www.1752.vc/careers/jobs/radixark-member-of-technical-staff-inference-kernel-compiler-and-communication/

## About the role

RadixArk is seeking a Member of Technical Staff — Kernel / Compiler / Communication to push the limits of performance for frontier AI systems. You will work at the lowest layers of the stack — kernels, runtimes, compilers, and communication libraries — to unlock maximum efficiency from modern accelerators and interconnects.

## What they're looking for

- 5+ years of experience in systems, compiler, or performance engineering
- Strong expertise in CUDA or accelerator programming
- Deep understanding of GPU architecture and memory hierarchy
- Experience writing or optimizing high-performance kernels
- Strong background in compilers, runtimes, or code generation
- Experience with distributed communication libraries (NCCL, MPI, RCCL, etc.)

Tags: Member of Technical Staff