# Member of Technical Staff — Inference-Multi-Hardware 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: 2026-08-03
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/radixark/jobs/4343666009
- Page: https://www.1752.vc/careers/jobs/radixark-member-of-technical-staff-inference-multi-hardware/

## About the role

RadixArk is seeking a Member of Technical Staff - Inference-Multi-Hardware to push the limits of performance for frontier AI systems.

## What they're looking for

- 4+ years of experience in systems, performance, or ML infrastructure engineering
- Deep expertise in at least one accelerator programming model (CUDA, ROCm/HIP, Pallas/XLA, Triton, or a vendor SDK), with demonstrated ability to pick up new ones quickly
- Strong understanding of accelerator architecture: memory hierarchy, bandwidth limits, occupancy, and the tradeoffs between them
- Experience writing or optimizing high-performance kernels for ML workloads
- Experience with distributed execution and communication libraries (NCCL, RCCL, MPI, or equivalents)
- Proficiency in C++ and Python

Tags: Member of Technical Staff