Back to search
Infrastructure Technical Lead
+ 12 month ongoing assignment
+ Outside IR35
+ 650 to 710 per day
+ Hampshire based
+ Role requires DV Clearance
Role Overview
We are seeking an experienced Infrastructure Technical Lead to support a highly secure military programme. This role sits at the sharp end of defence IT, leading infrastructure design, implementation, and ongoing technical assurance across mission-critical systems.
You will be the technical authority for infrastructure decisions, working closely with military stakeholders, architects, and delivery teams to ensure systems are secure, resilient, interoperable, and fit for operational use.
Key Responsibilities
Act as Technical Lead for infrastructure within a secure military environment
Lead the design, build, and assurance of on-premise and restricted network infrastructure
Provide hands-on expertise across server, platform, and core infrastructure services
Own technical decisions and ensure alignment with defence security standards and policies
Lead and mentor engineers, setting technical direction and best practice
Work closely with architects and delivery leads to ensure interoperability between systems, networks, and platforms
Support integration of legacy military systems with newer infrastructure solutions
Ensure infrastructure is designed for resilience, availability, and operational continuity
Engage confidently with senior military and MOD stakeholders
Produce and review technical documentation suitable for secure and audited environments
Essential Experience
Proven experience working on military or defence IT infrastructure projects
Strong background in highly secure / classified environments
Deep experience with server infrastructure (Windows Server essential; Linux desirable)
Strong expertise in Microsoft Exchange (secure configurations, migrations, hybrid models where applicable)
Demonstrable experience delivering interoperable infrastructure solutions across complex estates
Experience working with restricted networks, air-gapped environments, or cross-domain solutions
Strong understanding of infrastructure security principles within defence or government frameworks
Previous experience in a technical lead or senior infrastructure role
Technical Skills (Core)
Windows Server (design, hardening, lifecycle management)
Active Directory, DNS, Group Policy
Microsoft Exchange (on-prem / secure hybrid environments)
Virtualisation platforms (VMware / Hyper-V)
Secure networking concepts and dependencies
Backup, DR, and high-availability design
Infrastructure documentation and technical assurance
Desirable Experience
Experience working with MOD, NATO, or allied defence environments
Knowledge of defence security standards and accreditation processes
Experience integrating legacy systems in operational environments
Exposure to secure platform modernisation or transformation programmes
