Senior IT Data Systems Administrator

About the Opportunity

An innovative and fast-growing international deep-tech manufacturing company is looking for a Senior IT Infrastructure & Systems Administrator to lead the architecture, scalability, and optimization of its mission-critical IT infrastructure across Spain and global operations.

This is a strategic, hands-on role where you'll be responsible for ensuring the reliability, security, and performance of enterprise systems while supporting the company's continued international growth. You'll work closely with cross-functional teams, driving infrastructure initiatives and defining best practices across complex, high-availability environments.

Key Responsibilities

• Architect, deploy, and maintain mission-critical IT infrastructure, ensuring high availability, scalability, and optimal performance.
• Design and implement enterprise security policies, identity management solutions, and access control frameworks.
• Lead infrastructure strategy, including vendor management, hardware lifecycle planning, and capacity forecasting.
• Drive complex infrastructure projects such as system upgrades, migrations, and technology implementations.
• Establish technical standards, documentation, and operational best practices.
• Design, implement, and maintain enterprise clustering and networking solutions, optimizing connectivity, resilience, and security.
• Collaborate with global teams to continuously improve infrastructure reliability and operational excellence.

Requirements

• 7+ years of experience managing complex enterprise IT infrastructure.
• Degree in Computer Science, Information Technology, or a related field (or equivalent professional experience).
• Strong experience designing and supporting high-availability environments, clustering technologies, and enterprise infrastructure.
• Advanced knowledge of:
  • Windows and macOS environments
  • Active Directory
  • Enterprise networking
  • Meraki
  • Remote Monitoring & Management (RMM) tools
• Experience administering Linux systems is highly desirable.
• Database administration experience is considered a strong plus.
• Professional fluency in English and Spanish is required.
• German is a plus.
• Availability to travel occasionally between company locations within Spain.

What They're Looking For

The ideal candidate combines strong technical expertise with a strategic mindset. You'll be comfortable working in complex, fast-paced environments, leading infrastructure initiatives from design through execution, and acting as a technical reference for critical IT systems supporting international operations.