Systems Integrator (3rd party job posting)

Athens, Greece (On Premise)

Full-time, with indefinite duration

Mid-Senior

Data Science & AI

We are AETHON

AETHON Engineering is a fast-growing multidisciplinary technology firm specializing in engineering, product development, and venture-building. We pride ourselves on an entrepreneurial culture, high-impact projects, and continuous innovation.

About the role

We are currently looking for a Systems Integrator / Lead Tech on behalf of a trusted partner of AETHON Engineering.

The role focuses on the hands-on management and support of Microsoft environments, network infrastructure, virtualization, backups, and day-to-day technical operations. We are looking for a practical, reliable, and solution-driven professional who can keep systems stable, resolve issues efficiently, and contribute to the continuous improvement of the IT environment.

What you will do

  • Manage and support Microsoft systems, services, and infrastructure;
  • Administer Windows Server, Active Directory, DNS, DHCP, and Group Policy environments;
  • Support Microsoft 365, Entra ID / Azure AD, users, access rights, and related cloud services;
  • Work with virtual machines and virtualization platforms such as VMware or Hyper-V;
  • Monitor systems, handle alerts, investigate issues, and resolve technical incidents;
  • Support backup, restore testing, and basic disaster recovery procedures;
  • Troubleshoot network infrastructure, including firewalls, switches, VPNs, routing, and connectivity issues;
  • Support migrations, upgrades, integrations, and infrastructure improvement projects;
  • Document configurations, changes, incidents, technical decisions, and operational procedures;
  • Contribute to the standardization, security, reliability, and continuous improvement of IT environments.

What you will bring

  • Experience in systems administration, network administration, IT support, systems integration, or a similar technical role;
  • Strong knowledge of Microsoft technologies and infrastructure environments;
  • Practical experience with Windows Server, Active Directory, DNS, DHCP, and Group Policy;
  • Experience with Microsoft 365 and Entra ID / Azure AD administration;
  • Experience working with virtual machines, virtualization platforms, and backup systems;
  • Good understanding of networking principles and infrastructure troubleshooting;
  • Ability to diagnose problems in a structured way and resolve incidents efficiently;
  • Clear communication skills, strong documentation habits, and attention to operational detail;
  • Ability to work independently, take ownership, and collaborate effectively as part of a team;
  • Valid car or motorcycle driving license and access to an available vehicle for work-related needs.

What we consider a plus

  • Knowledge of PowerShell or other scripting tools;
  • Experience with monitoring, patching, and remote administration tools;
  • Experience with firewalls, routing, switching, VPNs, and secure connectivity;
  • Experience with disaster recovery and business continuity procedures;
  • Experience working in an organized IT support or managed services environment;
  • Knowledge of secure access, MFA, endpoint protection, and basic infrastructure security practices;
  • Experience supporting migrations, upgrades, or multi-system integration projects;
  • Familiarity with IT documentation, ticketing workflows, and operational standardization.

Want to apply? Then go ahead! Send a motivation letter (max 1 page) and your CV (max 2 pages) to jobs@aethon.gr. Nothing too fancy, just tell us who you are and why you want to join the AETHON team!

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