Palo Alto, California, United States · On-site
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 20K+ GitHub stars and serves billions of to…
Skills: Developer Advocacy, Public Speaking, Technical Writing, Python, AI Infrastructure
Palo Alto, California, United States · On-site
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 sit …
Skills: GPU Systems, LLM Infrastructure, Performance Engineering, CUDA, ROCm
Palo Alto, California, United States · On-site
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, la…
Skills: Systems Engineering, ML Infrastructure, GPU Architecture, Distributed Systems, Python
Palo Alto, California, United States · On-site
About the Role RadixArk is looking for a Backend/Platform Engineer to build the API layer, control plane, and platform services that power SGLang and Miles in production. You'll design and implement the REST/gRPC APIs, a…
Skills: Python, Go, Rust, REST API, gRPC
Palo Alto, California, United States · Hybrid
About the Role We’re looking for a Chief of Staff / Strategic Executive Assistant to partner directly with our founders and help scale the company through its next stage of growth. This is not a traditional Executive Ass…
Skills: Executive Operations, Strategic Planning, Project Management, Cross-functional Coordination, Calendar Management
Palo Alto, California, United States · On-site
About the Role RadixArk builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises around the world. We're looking for a designer to give our brand a distinct visual voice, led b…
Skills: Illustration, Brand Design, Visual Design, AI Image Generation, Claude Code
Palo Alto, California, United States · On-site
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 serves …
Skills: Product Positioning, Go-to-Market Strategy, Technical Messaging, Field Event Management, External Communications
Palo Alto, California, United States • On-site
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Build and engage the technical community around SGLang and Miles through technical content, conference talks, and workshops. Act as the bridge between the engineering team and external developers to drive product adoption and gather feedback.
Requires 4+ years of experience in developer relations or senior engineering with a strong background in AI infrastructure and Python. Must possess excellent public speaking and writing skills with a passion for open source development.
RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (20K+ GitHub stars, the fastest open LLM serving engine), and developed Miles (our large-scale RL framework). We're on a mission to democratize frontier-level AI infrastructure by building world-class open systems for inference and training. Our team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastructure that powers leading AI companies and research labs. We're backed by well-known infrastructure investors and partner with Nvidia, Google, AWS, and frontier AI labs.
Join us in building infrastructure that gives real leverage back to the AI community.
We offer competitive compensation with meaningful equity, comprehensive benefits, and flexible work arrangements. Compensation depends on location, experience, and level.
RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.
BUILD AI FOR ALL
BUILD AI FOR ALL
