apeirum partners with European companies to place senior IT talent. For one of our client partners in Barcelona we're hiring an IT Client Security Engineer to secure and harden their Windows endpoint estate — Microsoft Intune, Defender for Endpoint, and Microsoft 365 E5 security. Barcelona-based, permanent, with regular travel (10–20%).

Design, implement and operate client security solutions for Windows endpoints. Operate, configure and optimise Microsoft Defender for Endpoint, Defender Antivirus, Firewall and ASR rules.

Leverage

Microsoft 365 E5 security — Conditional Access, Endpoint Security, Identity Protection. Strong expertise in Microsoft Windows 10/11, Intune / Endpoint Manager, Defender for Endpoint, and Microsoft 365 E5 Security & Compliance. Endpoint hardening (Microsoft Security Baselines, CIS benchmarks).





PowerShell scripting and automation. Very good English. Degree in computer science. Own a real client-security mandate in a modern Microsoft environment. A dynamic and friendly workplace in a tech hub in Barcelona, combining startup energy with the stability of a Swiss industrial leader.

International collaboration with integral teams, especially in Switzerland, and external integration partners. Opportunities for continuous learning and growth through the internal academy and professional development programs. A permanent contract, competitive compensation, and flexible working hours supporting work–life balance. #

📌 Senior It Security Engineer (Madrid)
🏢 Apeirum
📍 Madrid