3rd Line Engineer Leader - DV Cleared

LA International; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

LA International is seeking a 3rd Line Engineer Leader with active DV clearance to join our secure infrastructure team. You will combine hands-on technical expertise with leadership, guiding a small 2nd Line team and owning high‑level incident resolution across VMware, Windows Server, and AD services.

The role requires strong analytical and communication skills, a proactive approach to service improvements, and the ability to work in a demanding security environment with shift coverage as needed.

Qualifications

• 3rd Line infrastructure support experience.
• Experience leading or coaching technical teams.
• VMware Cloud Foundation, vCenter, ESXi experience.
• Windows Server 2019/2022 and Microsoft tooling knowledge (MCM, SCOM, Exchange).
• Strong Active Directory, GPO, DNS, DFS, and user account management.
• Ability to analyze Windows Server logs and troubleshoot enterprise infra.
• Knowledge of Juniper networking and monitoring tools is a plus.
• Experience with legacy Microsoft tech and training provided.
• Excellent analytical, communication, customer service, and problem-solving skills.
• Able to work independently and in a collaborative team.

Responsibilities

• Provide 3rd Line technical support across secure infrastructure environments.
• Support a high-profile user community through an incident management system.
• Lead and mentor a team of 2nd Line Engineers.
• Manage technical escalations and provide guidance on complex support issues.
• Support VMware, Windows Server, and Microsoft infrastructure technologies.
• Troubleshoot infrastructure, Active Directory, and networking issues.
• Perform system administration, user management, and operational support activities.
• Contribute to service improvements and technical documentation.
• Participate in shift work where required.

Skills

3rd line infra support

Team leadership

VMware expertise

Windows Server 2019/2022

MCM/SCOM/Exchange

Active Directory/GPO

DNS/DFS

Troubleshooting enterprise infra

Juniper networking

Legacy Windows

Analytical skills

Communication skills

Job description

3rd Line Engineer Leader

Must have an Active DV Clearance

You will work across a broad range of Microsoft, VMware, and infrastructure technologies, supporting complex incidents, driving service improvements, and providing technical leadership.

The position is ideal for an experienced 3rd Line Engineer looking to combine hands‑on technical expertise with team leadership responsibilities. Legacy infrastructure training will be provided where required.

3rd Line Engineer Leader Responsibilities

• Provide 3rd Line technical support across secure infrastructure environments.
• Support a high‑profile user community through an incident management system.
• Lead and mentor a team of 2nd Line Engineers.
• Manage technical escalations and provide guidance on complex support issues.
• Support VMware, Windows Server, and Microsoft infrastructure technologies.
• Troubleshoot infrastructure, Active Directory, and networking issues.
• Perform system administration, user management, and operational support activities.
• Contribute to service improvements and technical documentation.
• Participate in shift work where required.

3rd Line Engineer Leader Skills and Experience

• Strong experience providing 3rd Line infrastructure support.
• Experience leading, mentoring, or coaching technical support teams.
• Strong VMware experience including VMware Cloud Foundation (VCF), vCenter, ESXi, and virtual infrastructure technologies.
• Experience with Windows Server 2019/2022, Microsoft Configuration Manager (MCM), SCOM, and Microsoft Exchange.
• Strong knowledge of Active Directory, Group Policy (GPO), DNS, DFS, and User Account Management.
• Experience analysing Windows Server log files and troubleshooting enterprise infrastructure.
• Knowledge of Juniper networking technologies and infrastructure monitoring tools would be advantageous.
• Experience supporting legacy Microsoft technologies including Windows 7, Windows 10, and Windows Server 2008/2012 is desirable. Legacy infrastructure training will be provided.
• Excellent analytical, communication, customer service, and problem‑solving skills.
• Able to work independently while supporting a collaborative team environment.

Successful applicants will be required to be security cleared prior to appointment which can take a minimum 18 weeks.

LA International is an award‑winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance.

An award‑winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years.

We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience.