Imagine stepping into a role where every system you manage directly supports teams working on mission-critical, high-impact technology. As a Systems & Networks Administrator, you’ll be a key player in managing, securing, and optimizing a diverse IT environment across the organisation. This is a true “jack of all trades” role, idóneo for someone with deep hands‑on experience across Microsoft 365, AWS, Jira, Windows Server, and network infrastructure, paired with a strong, proactive security mindset. You’ll ensure the reliability, scalability, and security of the systems that power day‑to‑day operations and future growth. What You’ll Do * Administer, monitor, and optimize Microsoft 365 services (Exchange Online, SharePoint, Teams, Defender, Entra ID, Intune) * Manage and maintain AWS cloud infrastructure, including identity sources, networking, security controls, HPC, SAML, and Route53 * Support Windows Server environments, including Active Directory, file services, patching, and backups * Administer and customize Atlassian Jira and Confluence,



aligning tools with team workflows and integrations * Support network infrastructure including switches, routers, firewalls, VPNs, site connectivity, and basic SD‑WAN * Design and maintain network layouts and subnet allocations for new and existing facilities * Apply security best practices across systems and networks, supporting compliance, monitoring, and incident response * Troubleshoot complex issues across infrastructure, cloud platforms, networks, and applications * Provide guidance to IT support teams on complex software and hardware issues * Contribute to IT strategy and propose improvements to performance, security, and reliability * Maintain clear documentation of systems, configurations, and processes What You’ll Need * Bachelor’s degree in IT, Computer Science, or equivalent practical experience * 5+ years of experience in systems and network administration * Strong hands‑on experience with Microsoft 365 administrati

📌 Network System Specialist (Madrid)
🏢 Strativ Group
📍 Madrid