System Administration Lead – Cloud & Security for Renewables

Entek Elektrik; Üsküdar; Hybrid; TRY 280,000 - 450,000; Full time

Job summary

Entek Elektrik, a Koç Group company in Turkey's renewable energy sector, seeks an IT Infrastructure Administrator to manage Windows Server environments, AD, Azure AD, Intune, and security-focused cloud services across locations. You will implement device and patch management, monitor performance, and support continuity initiatives.

The role requires strong PowerShell skills, ITIL-aligned processes, and collaboration with vendors, with a hybrid work model and ongoing development opportunities.

Qualifications

• Bachelor’s degree in Computer Engineering, IT, Informatics, Telecommunications or related field.
• Minimum 3 years of system and infrastructure administration experience.
• Experience with Active Directory, DNS, DHCP, Group Policy, certificates, Microsoft Entra ID (Azure AD), Azure and Microsoft 365 platforms.
• Experience with Microsoft Intune, SCCM/MECM and MDM solutions for device, inventory, application and patch management.
• Knowledge of Conditional Access, MFA, SSO, device compliance policies, Microsoft Defender and endpoint security solutions.
• Ability to script with PowerShell and perform log analysis and troubleshooting.
• Basic networking knowledge including firewall, switch, router, LAN/WAN and VPN.
• Knowledge of backup, disaster recovery, business continuity, ITIL processes, Incident, Problem and Change Management, information security and ISO 27001 practices.
• Strong analytical thinking, problem-solving and communication skills, with a collaborative mindset and a passion for continuous learning.
• Proficiency in technical English.

Responsibilities

• Managing installation, administration, maintenance and monitoring activities of Windows Server and Microsoft infrastructures.
• Managing Active Directory, DNS, DHCP, Group Policy, certificate infrastructures and Microsoft Entra ID services.
• Managing Azure, Microsoft 365 and Intune environments, including device inventory, configuration, application, patch and compliance processes.
• Supporting the implementation and administration of Conditional Access, MFA, endpoint security and Microsoft Defender solutions.
• Analyzing system issues, identifying root causes and developing permanent solutions while monitoring system performance, availability, redundancy and security.
• Providing remote and on-site support to users and IT infrastructures across different locations when required.
• Contributing to IT projects, infrastructure integrations, backup, disaster recovery and business continuity processes.
• Maintaining system, application and license inventories and preparing technical documentation.
• Supporting technical activities with vendors and technology partners while contributing to the security, continuity and continuous improvement of the IT infrastructure.

Skills

Windows Server administration

Active Directory

DNS/DHCP

Microsoft Entra ID (Azure AD)

Azure

Microsoft 365

Intune

SCCM/MECM

MDM solutions

PowerShell

Log analysis

Networking basics

ITIL processes

English proficiency

Education

Bachelor’s degree in Computer Engineering, Information Technologies, Informatics, Telecommunications or related field

Job description

Entek Elektrik, a Koç Group company in Turkey's renewable energy sector, seeks an IT Infrastructure Administrator to manage Windows Server environments, AD, Azure AD, Intune, and security-focused cloud services across locations. You will implement device and patch management, monitor performance, and support continuity initiatives.

The role requires strong PowerShell skills, ITIL-aligned processes, and collaboration with vendors, with a hybrid work model and ongoing development opportunities.