Nexthink is the leader in digital employee experience management software. The company provides IT leaders with unprecedented insight allowing them to see, diagnose and fix issues at scale impacting employees anywhere, with any applicationor network, before employees notice the issue. As the first solutionto allow IT to progress from reactive problem solving to proactive optimization, Nexthink enables its more than 1,500 customers to provide better digital experiences to more than 25+ millionemployees. Dual headquartered in Lausanne, Switzerland and Boston, Massachusetts, Nexthink has 9 offices worldwide. #LI-Hybrid
We are looking for an Infrastructure Security Engineer who will engineer and operate the technical security controls protecting Nexthink's corporate infrastructure, spanning non-cloud, cloud, and internal network environments.
You will report to the Infrastructure Security Lead, executing the hardening, patching, cloud posture, and segmentation.
Contribute to hardening baselines across the VM fleet (Windows, Linux)
Support security controls and initiative for Active Directory,



Group Policy, and Microsoft Entra ID
Contribute to cloud security posture management across Azure and AWS
Help implement and maintain policy-as-code for cloud configuration baselines, and support remediation of configuration drift
Help implement micro-segmentation policies and trust-model controls
Help validate east-west traffic flows and network security control compliance against corporate standards
Maintain patch, vulnerability, and configuration evidence to support compliance and certification audits
Take part in internal and external security audits, including evidence gathering, auditor coordination, and control walkthroughs
4+ years in infrastructure or security engineering, with exposure to both non-cloud and cloud environments
~ Experience hardening Windows Server, Linux, and VMware vSphere
~ Working experience with Active Directory, Group Policy, and Microsoft Entra ID
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📌 It Infrastructure Security Engineer (Madrid)
🏢 Nexthink
📍 Madrid