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.

Full Stack Engineer

RadixArk is building the infrastructure layer for frontier AI systems, and they are seeking a Full Stack Engineer who thrives in high-ambiguity environments. The role involves designing and implementing high-performance web applications, building scalable backend systems, and optimizing real-time streaming interfaces for model inference workflows.

Head of People & Talent

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. They are seeking a Head of People & Talent to build their People and Recruiting function from the ground up, overseeing the full recruiting lifecycle and establishing HR operations and analytics infrastructure.

Solutions Account Executive

RadixArk is an infrastructure-first company focused on democratizing AI infrastructure. They are seeking a Solutions Account Executive who can manage sales cycles, engage in technical conversations, and build relationships with AI labs, enterprises, and AI-native startups.

Solutions Architect

Product Manager

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. They are seeking a Product Manager to define and drive the product roadmap for inference and training infrastructure, collaborating closely with engineering teams and engaging with early adopters to guide product iterations.

RadixArk is an infrastructure-first company focused on democratizing AI infrastructure. They are seeking a Solutions Account Executive who will manage the full sales cycle and lead technical evaluations for AI labs, enterprises, and startups across APAC.

Solutions Account Executive, APAC

AI Infra Resident

RadixArk is launching a full-time, paid, 1-year residency program for aspiring AI infrastructure engineers. The role involves rotating across various areas of AI infrastructure, working on real production systems, and owning meaningful projects with mentorship from senior engineers.

AI Infra Resident (1-Year Program)

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, enhancing performance and scalability across thousands of GPUs.

Member of Technical Staff — Training

RadixArk is an infrastructure-first AI company seeking a Member of Technical Staff — Training to build and scale systems for training frontier AI models. The role involves working on large-scale distributed training infrastructure for LLMs and generative models, impacting how next-generation AI models are trained and scaled.

Member of Technical Staff — Kernel / Compiler / Communication

RadixArk is an infrastructure-first AI company seeking a Member of Technical Staff — Kernel / Compiler / Communication to enhance performance for frontier AI systems. The role focuses on optimizing kernels, runtimes, and communication libraries to maximize efficiency across GPU clusters.