Product Jobs at RadixArk

RadixArk is an infrastructure-first deep-tech company that builds large-scale inference and training systems for the AI community. Its mission is to make frontier-level AI infrastructure open and accessible. The company develops SGLang, an open engine for serving AI models, and Miles, a large-scale reinforcement learning (RL) framework. RadixArk was founded by AI infrastructure engineers with experience at xAI and NVIDIA.

• Technical Program Manager: Palo Alto, posted 30 April 2026.
• Product Manager: Palo Alto, posted 28 January 2026.

RadixArk is also hiring in engineering (13), data and AI (1), marketing and growth (1), operations (1) and sales and business development (1).

Its roles are in Palo Alto, CA, US (19).

You decide what to build, then sit with the engineers who build it. Users are close enough to call, and the roadmap changes when they tell you something surprising. At a large company you would write a spec and wait for a planning cycle.