Diamond Foundry Inc. is a leader in diamond‑based technology manufacturing. We are looking for a hands‑on Senior Data Systems Engineer (Networking) to join our global IT team and serve as the senior network authority across the organization, based in Zaragoza.
Responsibilities
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.
Requirements
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.
Pay: €50,000 - €65,000 per year.
BenefitsEligible employees receive health insurance, versátil spending accounts, retirement savings plans, life and disability insurance, paid and unpaid time away, and employee discounts. All benefits start at the first day.
Equal Opportunity EmployerDiamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, o

📌 Senior Data Systems Engineer (Madrid)
🏢 Diamond Foundry
📍 Madrid