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Designer

RadixArk is a company that builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises globally. They are seeking a designer to create a distinct visual identity for their brand and to collaborate with various teams to produce compelling visuals and materials.

Product Marketing Manager

RadixArk is seeking a Product Marketing Manager to enhance the positioning and perception of their products, particularly SGLang and Miles, within the AI infrastructure market. The role involves defining product messaging, managing go-to-market strategies, and executing field events while ensuring clear communication with developers and partners.

Head of Business Development

RadixArk is an infrastructure-first company focused on democratizing AI infrastructure. They are seeking a Head of Business Development to build the BD function from the ground up, maintaining customer relationships and translating insights into actionable intelligence for the commercial organization.

Solutions Architect

RadixArk is an infrastructure-first company focused on democratizing AI infrastructure. They are seeking a Solutions Architect who can manage commercial relationships and run full sales cycles while collaborating with engineering teams to translate technical capabilities for clients.

Member of Technical Staff — TPU Systems

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. They are seeking a TPU Systems Engineer to build high-performance inference and training systems using JAX, XLA, and Pallas, while optimizing model workloads on TPU hardware.

Member of Technical Staff — TPU Systems (JAX / XLA / PALLAS)

Full Stack Engineer

RadixArk is building the infrastructure layer for frontier AI systems, and they are seeking a Full Stack Engineer to develop high-performance web applications for AI infrastructure tooling. The role involves designing scalable backend systems and architecting APIs that serve enterprise and research customers.

Member of Technical Staff — Supercomputing

RadixArk is an infrastructure-first AI company seeking a Member of Technical Staff — Supercomputing to build and operate production-grade AI infrastructure. The role involves deploying and managing AI workloads, ensuring system reliability, and collaborating with engineering teams to enhance deployment processes.

Member of Technical Staff — Inference

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. They are seeking a Member of Technical Staff — Inference to design and optimize large-scale AI inference systems, improving performance and reliability across thousands of GPUs.

Member of Technical Staff — Cluster / Platform

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. They are seeking a Member of Technical Staff (Cluster / Platform) to architect and scale their core compute platform for AI training and inference, emphasizing deep systems engineering and high-performance GPU/TPU clusters.

AI Infra Resident (1-Year Program)

RadixArk is launching a full-time, paid, 1-year residency program for aspiring AI infrastructure engineers. The role involves rotating across various domains such as inference and training, working on real production systems alongside senior engineers, and owning meaningful projects that impact thousands of developers.