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 integral 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 enterpr

📌 Senior IT Data Systems Administrator (Zaragoza)
🏢 Diamondfoundry
📍 Zaragoza