Senior Data Systems Engineer (Networking)

Spain·ZaragozaFull-timesenior

Systems EngineerInfrastructure & Cloud

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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.

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Systems EngineerInfrastructure & Cloud

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 hands-on Senior Data Systems Engineer (Networking) to join Diamond Foundry’s global IT team, serving as the senior-most network authority across the organization. Based in Zaragoza, this role supports Tier-1 manufacturing and office environments globally, working closely with a predominantly U.S.-based IT team to ensure production uptime, enable rapid site growth, and strengthen network resiliency across all regions.

Own and operate LAN, WAN, and Wi-Fi infrastructure for Tier-1 manufacturing and office environments.

Lead network readiness for new site builds and expansions, including the plant in Zaragoza and future Spain facilities.

Manage routing, switching, firewalls, VPNs, and ISP circuits, including vendor coordination and escalation. Troubleshoot and resolve network-related issues, including VLANs, VPNs, and firewall configurations.

Establish and maintain network standards, documentation, and operational best practices.

Act as senior escalation for production-impacting network issues and complex troubleshooting.

7+ years enterprise network engineering experience; manufacturing or 24/7 environments strongly preferred.

Strong hands-on experience with Wi-Fi design, VLANs, routing, firewalls, ISPs and VPNs.

Experience supporting production-critical or high-availability environments.

Familiarity with platforms such as Cisco (Meraki), CloudFlare, Atlassian, monitoring tools, Cloud networking (GCP, AWS), and on-prem infrastructure.

Bilingual fluency in English and Spanish required; German is a plus. Ability to travel between company locations in Spain as needed.