ppImagine stepping into a role where every system you manage directly supports teams working on mission-critical, high-impact technology. As a bSystems Networks Administrator /b, you’ll be a key player in managing, securing, and optimizing a diverse IT environment across the organisation. /ppThis is a true b“jack of all trades” /b 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. /ph3What You’ll Do /h3ulliAdminister, monitor, and optimize bMicrosoft 365 /b services (Exchange Online, SharePoint, Teams, Defender, Entra ID, Intune) /liliManage and maintain bAWS cloud infrastructure /b, including identity sources, networking, security controls, HPC, SAML, and Route53 /liliSupport bWindows Server environments /b, including Active Directory, file services, patching, and backups /liliAdminister and customize bAtlassian Jira and Confluence /b, aligning tools with team workflows and integrations /liliSupport network infrastructure including bswitches, routers, firewalls, VPNs, site connectivity, and basic SD‑WAN /b /liliDesign and maintain network layouts and subnet allocations for new and existing facilities /liliApply security best practices across systems and networks, supporting compliance, monitoring, and incident response /liliTroubleshoot complex issues across infrastructure, cloud platforms, networks,



and applications /liliProvide guidance to IT support teams on complex software and hardware issues /liliContribute to IT strategy and propose improvements to performance, security, and reliability /liliMaintain clear documentation of systems, configurations, and processes /li /ulh3What You’ll Need /h3ulliBachelor’s degree in IT, Computer Science, or equivalent practical experience /lilib5+ years /b of experience in systems and network administration /liliStrong hands‑on experience with bMicrosoft 365 /b administration and identity management /liliSolid knowledge of bAWS /b services, IAM, networking, and security configuration /liliStrong bWindows Server and Active Directory /b skills /liliGood understanding of bZero Trust /b and modern cybersecurity frameworks (e.g. ISO 27001, NIS) /liliExperience with monitoring tools such as bPRTG, SolarWinds, CloudWatch, SIEM, SOC/NOC platforms /b /liliBasic to intermediate bLinux /b administration skills /liliExposure to bDevOps practices /b and CI/CD tooling /liliExperience with bvirtualization and storage technologies /b (VMware / Hyper‑V) /liliStrong understanding of bOIDC, SAML 2.0, SCIM, MFA /b, and SaaS integrations /liliScripting or automation experience (bPowerShell, Python, Bash /b) /liliSolid networking fundamentals (bTCP/IP, VLANs, routing, firewalls, VPNs /b) /liliAbility to translate technical challenges into clear solutions for non-technical stakeholders /li /ulh3Desirable Certifications /h3ulliMicrosoft 365 Administrator /liliAWS Associate or Professional /liliNetwork+ or CCNA /liliSecurity-focused certifications (e.g. Security+) /li /ul /p #J-18808-Ljbffr

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