Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.

We are seeking a highly experienced Senior IT Data Systems Administrator to architect, scale, and optimize our mission-critical IT infrastructure across Spain and our global locations. As a key technical lead, you will drive the stability, security, and operational excellence of our technology stack, balancing high-level infrastructure strategy with proactive systems management. The ideal candidate will bring deep expertise in clustering, high-availability environments, and enterprise networking, with solid experience in Linux systems and/or database administration. You will be instrumental in evolving our IT operations, providing architectural guidance, and collaborating cross-functionally to ensure our systems effectively support our rapid, large-scale growth.

Responsibilities

• Architect, deploy, and maintain mission-critical infrastructure, ensuring high availability, performance, and scalability across global operations.

  
  

• Design and implement robust security policies, identity management frameworks, and access controls to protect sensitive corporate assets.

  
  

• Lead strategic infrastructure initiatives, including vendor management, hardware lifecycle planning, and capacity forecasting for large-scale deployments.

  
  

• Drive IT projects, including complex system upgrades and migrations, by defining technical standards, workflows, and documentation best practices.

  
  

• Engineer and manage advanced enterprise clustering and networking solutions, optimizing connectivity, security, and traffic flow in complex environments.

  
  
  

Requirements

• Associate’s or Bachelor’s degree in IT, Computer Science, or a related field (or equivalent experience 7+ years in complex, large-scale enterprise environments). 

  
  

• Deep proficiency in architecting and maintaining high-availability systems, server clustering, and robust enterprise solutions.

  
  

• Advanced knowledge of Windows/macOS ecosystems, Active Directory, Meraki, and RMM tools. Solid experience in Linux systems administration and database management is a significant plus.

  
  

• Bilingual fluency in English and Spanish required; German is a plus.

  
  

• Ability to travel between company locations in Spain as needed.