Lead Technical Support Specialist – Windows Server, SQL, VMware, Storage

About the role

Join SITA’s Professional Field Services team as a Senior Technical Administrator at Istanbul Airport. You will ensure the availability and performance of critical airport technology by administering Windows Server, SQL Server, VMware, storage, and backup environments while delivering services in line with SLAs.

Key responsibilities

• Administer and monitor Windows Server services including Active Directory, Failover Clustering, IIS, WDS, DNS and DHCP.
• Install, configure, backup, restore and performance‑tune SQL Server databases.
• Manage VMware hosts, virtual machines and datastores to maintain stable operations.
• Monitor, administer and troubleshoot SAN storage and SAN switch environments.
• Operate backup and disaster‑recovery solutions, monitor jobs, perform restores and support recovery testing.
• Own incident resolution end‑to‑end, following ITIL processes and SLA commitments.
• Provide clear communication and updates to customers, internal teams and stakeholders.
• Maintain operational documentation and contribute to proactive monitoring and continuous improvement.
• Participate in a rotating on‑call schedule while primarily working onsite.

Required profile

• At least 3–5 years of professional experience in network, infrastructure, application or systems support.
• Degree in Computer Science, Electronic Engineering, IT or related field.
• Proven experience supporting external customers and delivering services against agreed SLAs.
• Strong troubleshooting, incident ownership and stakeholder‑management skills.
• Proactive, accountable work style with ability to follow tasks through to completion.

Required skills

• Windows Server administration (Active Directory, Failover Clustering, IIS, WDS, DNS, DHCP).
• SQL Server installation, backup/restore, performance monitoring.
• VMware host and virtual machine administration.
• SAN storage and SAN switch troubleshooting.
• Backup and disaster‑recovery solution operation.
• Practical knowledge of ITIL processes and service‑management principles.

What we offer

• Flex Week: up to 2 days/week remote work.
• Flex Day: adaptable workday scheduling.
• Flex‑Location: up to 30 days/year remote from any location.
• Employee Wellbeing programs including 24/7 assistance and health platform.
• Professional development through extensive learning platforms and certifications.
• Competitive benefits aligned with local market.