RadixArk

Member of Technical Staff — Inference-Multi-Hardware

Open 33d North America

AI Cloud C++ CUDA Distributed Systems +9 skills

Optimize and port AI inference/training kernels across NVIDIA, AMD, TPUs, and emerging accelerators, designing portable abstractions for SGLang and Miles.

Open 81d HybridNorth America

Member of Technical Staff — Inference-Multimodal & Diffusion

AI Deep Learning Distributed Training Generative AI GitHub +5 skills

Research and engineer next-generation diffusion and flow-based models for image, video, and multimodal generation, scaling training and deployment on GPUs/TPUs.

Member of Technical Staff — Inference-Kernel, Compiler & Communication

AI C++ CUDA Distributed Training GitHub +6 skills

Develops high-performance kernels, compilers, and communication libraries to optimize AI workloads on GPU clusters, focusing on low-latency and memory efficiency.

Member of Technical Staff — Reliability-CI Infrastructure

AI Bash CI/CD CUDA Developer Experience +14 skills

Own and optimize the CI/CD infrastructure for SGLang, an open-source LLM inference engine, ensuring fast, reliable, and secure test pipelines across multiple GPU hardware pools.

Technical Program Manager

AI AWS CI/CD C++ CUDA +9 skills

Technical Program Manager at RadixArk coordinates large-scale AI infrastructure programs, including inference engines, training frameworks, and GPU integration, to deliver systems serving billions of tokens daily.

Visual Designer

AI Blender Cinema 4d Claude Code Distributed Training +5 skills

Designs RadixArk's visual identity and brand system, creating illustrations and collateral using AI tools and code, while collaborating with cross-functional teams to shape the company's public presence.

Product Manager

AI Analytics C++ Distributed Training GitHub +6 skills

Product Manager at RadixArk in Palo Alto defining and driving the AI infrastructure product roadmap, collaborating with engineering teams, and engaging with developer communities to shape open AI systems.

Product Marketing Manager

AI Cloud Distributed Training GitHub Go-to-Market +2 skills

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…

Member of Technical Staff — Cluster Infrastructure & Supercomputing

AI C++ Distributed Systems Distributed Training GitHub +9 skills

Designs and scales high-performance GPU/TPU clusters for AI training and inference, focusing on distributed systems, scheduling, and performance optimization.

Open 81d North AmericaC-level

Business Development

AI Business Development Distributed Training GitHub LLM

About the Role We're looking for a Head of Business Development to build the BD function at RadixArk from the ground up. The BD team is the institutional memory of this company — maintaining active relationships…

Member of Technical Staff — Inference-TPU

AI Distributed Training GitHub JAX LLM +3 skills

Builds and optimizes high-performance ML systems for TPU hardware using JAX, XLA, and Pallas, focusing on inference/training workloads and compiler/runtime tuning.

Member of Technical Staff — Inference-Core Engine

AI C++ CUDA Distributed Systems Distributed Training +11 skills

Builds and optimizes large-scale AI inference systems for frontier models, focusing on performance, latency, and cost across thousands of GPUs.

Member of Technical Staff — Performance

AI Cloud C++ CUDA Distributed Systems +6 skills

Performance Engineer at RadixArk in Palo Alto optimizes LLM inference and training systems for latency, throughput, and cost efficiency across production workloads using SGLang, Miles, and GPU/TPU infrastructure.

Member of Technical Staff — Product

Accessibility AI API Api Design C++ +14 skills

Builds and maintains developer-facing tools (APIs, SDKs, dashboards) on top of AI inference/training infrastructure like SGLang and Miles, collaborating with product and research teams to create intuitive interfaces.

Member of Technical Staff — Backend/API Platform

Open 66d North America

AI API Api Documentation Authentication Automation +19 skills

Build and maintain the backend and API platform powering SGLang and Miles, including REST/gRPC services, authentication, multi-tenancy, and monitoring for AI infrastructure.

200K – 400K $

Member of Technical Staff — Developer Experience

Open 45d North America

AI C++ CUDA Developer Advocacy Distributed Training +4 skills

Builds and engages the technical community around SGLang and Miles by creating content, speaking at events, and collaborating with developers to optimize AI infrastructure.

Member of Technical Staff — Developer Technology

Open 45d North America