Team Leader – System Administrator

We are seeking an experienced and proactive Team Leader – System Administrator to oversee and manage our IT infrastructure team.

Summary of role
We are seeking an experienced and proactive Team Leader – System Administrator to oversee and manage our IT infrastructure team. This role involves leading system administrators, ensuring optimal performance and security of on-premise and cloud environments, and driving compliance with industry standards.

Roles and Responsibilities

• Lead and mentor a team of system administrators, providing guidance and technical support.
• Allocate tasks, monitor progress, and ensure timely delivery of IT projects and operational goals.
• Collaborate with stakeholders to align IT initiatives with business objectives.
• Install, configure, and maintain servers (Windows Server OS 2022/2025) on-premise and in Azure Cloud.
• Manage network equipment (switches, access points) and other hardware.
• Oversee user accounts, permissions, and access controls (Active Directory and Microsoft Azure Entra ID).
• Administer Microsoft 365 services including Teams, SharePoint Online, and Exchange Online.
• Configure and manage firewalls (rules, web filtering, application control), VPNs, and site-to-site connections. Experience with Sophos Firewall is an advantage.
• Implement and maintain security measures to protect sensitive data and IT ecosystems (on-premise and Azure Cloud).
• Apply CIS and NIST frameworks; experience with ISO 27001 and ISO 9001 controls is a definite advantage.
• Ensure compliance with GDPR and Data Protection Act.
• Experience with SIEM solutions and vulnerability assessments preferred.
• Proactively monitor system and network performance and troubleshoot issues.
• Regularly update application software and firmware for network devices.
• Manage Windows Patch Management for servers and workstations.
• Implement and maintain backup solutions; conduct regular restore drills.
• Experience with Veeam Backup and Microsoft Azure Backup Center preferred.
• Maintain accurate documentation of system configurations and procedures.
• Assist and lead IT projects, system upgrades, and migrations.

Qualifications & Experience

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• Minimum 5+ years of experience in system administration, with at least 2 years in a leadership or supervisory role.
• Certifications such as CompTIA Security+, Microsoft Certified: AZ-900, AZ-104, AZ-500, and Cisco CCNA.
• Familiarity with virtualization and cloud technologies.
• Proven experience in managing IT projects and leading technical teams.

Skills

• Experience with monitoring tools (e.g., Zabbix) and ISO 27001 implementation.
• Excellent knowledge of Windows Patch Management for Servers and Workstations.
• Experienced with Office 365 and Azure Portal. 
• Excellent knowledge of Backup solutions and conduct regular restore drills
• Strong knowledge of Windows operating systems, firewalls, and network security protocols.
• Excellent problem-solving and communication skills.
• Strong organizational and planning abilities.
• Customer-focused and quality-oriented.
• Good analytical and troubleshooting skills 
• Excellent English language proficiency [both written and verbal]