Radixark

60 Radixark Jobs Hiring Near You

RadixArk is an infrastructure-first company focused on building advanced AI systems and products. They are seeking a Software Engineer, Product to collaborate with cross-functional teams and create ...

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 ...

About RadixArk RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (30K+ GitHub stars, the fastest open LLM serving engine), and ...

RadixArk is an infrastructure-first company focused on democratizing AI infrastructure. They are seeking a Product Manager to define and drive the product roadmap for inference and training ...

RadixArk is an infrastructure-first company focused on democratizing AI infrastructure. They are seeking a Product Manager to define and drive the product roadmap for inference and training ...

Technical Program Manager

Palo Alto, CA · On-site

$151K - $196K/yr

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 ...

Technical Program Manager

Palo Alto, CA · On-site

$151K - $196K/yr

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 ...

Technical Program Manager

Palo Alto, CA · On-site

$151K - $196K/yr

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. As a Technical Program Manager, you will drive the execution of complex, cross-functional ...

Technical Program Manager

Palo Alto, CA · On-site

$151K - $196K/yr

RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. As a Technical Program Manager, you will drive the execution of complex, cross-functional ...

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Radixark Jobs Information

Infographic showing various job openings at Radixark in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Physical job distribution.

Member of Technical Staff -- Cluster / Platform

RadixArk

Palo Alto, CA • On-site

Full-time

Re-posted 28 days ago


Job description

Job Summary:
RadixArk is an infrastructure-first company focused on democratizing frontier-level AI infrastructure. They are seeking a Member of Technical Staff to architect and scale core compute platforms for AI training and inference, focusing on systems engineering across cluster architecture, networking, and performance optimization.
Responsibilities:
• Architect and scale large AI compute clusters for training and inference
• Design cluster management, scheduling, and resource allocation systems
• Optimize performance, utilization, and reliability of GPU/TPU clusters
• Improve fault tolerance and system resilience at scale
• Drive observability, monitoring, and performance profiling for cluster infrastructure
• Collaborate with ML and systems engineers to support frontier AI workloads
• Lead capacity planning and infrastructure scaling strategies
• Build internal platforms and tooling to improve developer productivity
• Document architecture, operational practices, and reliability strategies
• Contribute to long-term platform vision and technical direction
Qualifications:
Required:
• 5+ years of experience in distributed systems, infrastructure, or large-scale compute platforms
• Strong background in distributed systems design and systems architecture
• Deep experience with cluster management systems (Kubernetes, Slurm, Ray, or custom schedulers)
• Hands-on experience with GPU/TPU infrastructure in production environments
• Strong Linux systems and networking fundamentals
• Proficiency in Go, Rust, C++, or Python for production systems
• Experience debugging complex multi-layer issues across hardware, OS, networking, and distributed services
• Proven ability to design reliable, scalable systems in production
Preferred:
• Experience with large-scale ML/AI workloads
• Familiarity with RDMA, InfiniBand, or high-performance networking
• Experience operating clusters at 1000+ GPU scale
• Background in HPC or performance-critical systems
• Open-source contributions in systems or infrastructure
Company:
RadixArk focuses on developing infrastructure for AI inference and training systems. Founded in 2025, the company is headquartered in San Francisco, USA, with a team of 11-50 employees. The company is currently Early Stage.