IT Chief

About the role

AstraG Teknoloji is looking for an experienced IT Chief to manage, maintain and improve its corporate IT infrastructure, while providing technical expertise in network and security infrastructure for its engineering projects. The role combines enterprise IT operations with hands-on work on customer projects.

Key responsibilities

• Design, manage, maintain and continuously improve the company's IT infrastructure to ensure reliability, security and operational continuity.
• Configure, administer and maintain enterprise networks (LAN/WAN, VLANs, VPNs, switches, routers, firewalls, wireless).
• Administer Windows Server, Active Directory, Group Policy, Microsoft 365 and Entra ID.
• Maintain virtualization platforms, storage, backup solutions and disaster recovery infrastructure.
• Implement cybersecurity controls, monitor vulnerabilities, respond to security incidents and support information security audits.
• Design network and fiber-optic infrastructure for engineering projects, including topology planning, hardware selection and configuration.
• Prepare technical documentation, support project proposals and on-site installation and acceptance.
• Monitor performance, troubleshoot complex issues and act as a Tier 3 escalation point, coordinating change management, capacity planning and monitoring.
• Maintain documentation, network diagrams and SOPs, coordinate vendors and licenses, and mentor junior IT staff.

Required profile

• Bachelor's degree in Computer Engineering, Electrical/Electronics Engineering, Computer Science or a related field, or equivalent experience.
• At least 5 years of experience in IT infrastructure, systems or network engineering.
• Proven end-to-end management of multi-server, multi-site enterprise IT environments.
• Experience designing and delivering network and security infrastructure for customer projects, including hardware selection, documentation, installation and acceptance.
• English technical documentation and communication skills; eligibility for security clearance for defense-sector customers.
• Willingness to travel occasionally and provide on-call support.

Required skills

• LAN/WAN, TCP/IP, VLANs, routing, switching, VPNs, firewalls, DNS/DHCP and network security.
• Windows Server, Active Directory, Microsoft 365 and Entra ID.
• Virtualization (VMware, Hyper-V, Proxmox) and cybersecurity.
• Preferred: Azure or AWS, Terraform, Bicep, CloudFormation, CI/CD, OSPF/BGP, SD-WAN, SCADA, OT security, IEC 62443, and certifications such as CCNA/CCNP, CISSP or ISO/IEC 27001.