Senior Windows Systems Administrator — AD, Exchange & GPO Pro

Global Relay; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

Global Relay is seeking a Senior Windows Administrator to lead design, deployment, and support of Windows environments, focusing on Exchange, Active Directory, and desktop management. The role collaborates with Operations, Security, and IT teams to ensure high availability and robust incident response.

Office-based, with minimum 3 days in the UK office per week; training may require more time onsite. Visa sponsorship unavailable; must have right to work in the UK.

Qualifications

• Minimum 3-5 years of direct experience with Exchange and at least 10 years of overall IT administration and advanced computer support.

Responsibilities

• Administer corporate Active Directory and Microsoft Exchange environments, act as a SME for other internal and client facing AD & Exchange deployments
• Develop, implement, and manage desktop management policies related to securing desktops, applying group policies, and deploying software
• Update documentation, write new procedures, and detail Exchange and Active Directory configurations
• Deliver timely and high quality incident resolution and post-incident analysis focusing on root cause, prevention, and knowledge transfer
• Develop and implement strategies for providing proactive support resulting in fewer incidents, increased availability, or accelerated deployments
• Respond in a timely manner to Support and Operations cases related to Exchange, AD or other Windows Server issues
• Ensure all Windows systems operate with a high service availability
• Ensure that the corporate services adhere to our Business Continuity and Disaster Recovery Programs

Skills

Communication

Teamwork

Problem solving

Organization

Ability to work under pressure

Education

MCSA / A+ / MTA (assets)

Tools

Active Directory

Microsoft Exchange

SCCM

GPO

MDT

DNS

DHCP

ADFS

PowerShell

Job description

Global Relay is seeking a Senior Windows Administrator to lead design, deployment, and support of Windows environments, focusing on Exchange, Active Directory, and desktop management. The role collaborates with Operations, Security, and IT teams to ensure high availability and robust incident response.

Office-based, with minimum 3 days in the UK office per week; training may require more time onsite. Visa sponsorship unavailable; must have right to work in the UK.