RadixArk
Open positions
Member of Technical Staff — Security
About the Role RadixArk is looking for a Member of Technical Staff — Security to champion both our internal security posture and help us prepare for vendor audits and compliance requirements. As our first dedicated…
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. Most performance engineering assumes a single vendor's stack. This…
Member of Technical Staff — Developer Experience
About the Role RadixArk is seeking a Developer Advocate to build and engage our technical community around SGLang, Miles, and our open source infrastructure. SGLang already has 30K+ GitHub stars and serves billions of…
Member of Technical Staff — Developer Technology
About the Role RadixArk is seeking a Member of Technical Staff, Developer Technology (DevTech) to make LLM inference and training dramatically faster, cheaper, and more accessible on modern GPU hardware. Our systems…
Product Marketing Manager
About the Role RadixArk is seeking a Product Marketing Manager to own how SGLang, Miles, and our open source infrastructure are positioned and perceived across the market. SGLang already has 20K+ GitHub stars and…
Business Development
About the Role We're looking for a Business Development Lead to build the BD function at RadixArk from the ground up. The BD team is the institutional memory of this company — maintaining active relationships across…
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. You’ll work on the…
Member of Technical Staff — Product
About the Role RadixArk is seeking experienced product-focused engineers to join our team in building the developer-facing surfaces of our inference and training infrastructure. As a Member of Technical Staff —…
Technical Program Manager
About the Role As a Technical Program Manager at RadixArk, you'll drive the execution of complex, cross-functional programs across our inference and training infrastructure. You'll partner closely with Product…
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…
Member of Technical Staff — Inference-Kernel, Compiler & 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,…
Member of Technical Staff — Inference-Multimodal & Diffusion
About the Role RadixArk is seeking a Member of Technical Staff — Inference-Multimodal & Diffusion to advance the frontier of generative modeling. You will work on cutting-edge diffusion and flow-based models for image,…
Member of Technical Staff — Inference-Core Engine
About the Role RadixArk is seeking a Member of Technical Staff — Inference to push the limits of large-scale AI inference. You will work on the core systems that serve frontier models at scale, optimizing performance,…
Member of Technical Staff — Cluster Infrastructure & Supercomputing
About the Role RadixArk is looking for a Member of Technical Staff Cluster Infrastructure to architect and scale the core compute platform that powers frontier-level AI training and inference. You will design and…
Product Manager
Key Responsibilities Product Strategy & Roadmap Define, prioritize, and drive the product roadmap for inference and training infrastructure. Stay ahead of AI trends, including new model architectures, hardware…
Member of Technical Staff — Inference-TPU
About the Role RadixArk is looking for a Member of Technical Staff — TPU Systems to build high-performance inference and training systems using JAX, XLA, and Pallas. You'll push model workloads to their limits on TPU…