Introduction
A highly secure organisation is strengthening its infrastructure capability and needs a Senior Infrastructure Operations Engineer who can keep critical services running smoothly. You’ll step into a role where your technical leadership directly supports complex, sensitive environments.
Role Overview:
Location: 3 days On-site in a secure environment - Milton Keynes (SC clearance required)
Package: 12-month fixed-term contract
Industry: Secure government / infrastructure operations
What You’ll Be Doing:
* Leading and supporting an operations team to keep core infrastructure stable and performant.
* Owning the flow of incident management — prioritising, coordinating and driving quick resolutions.
* Working hand-in-hand with project, capacity and availability teams to diagnose issues and prevent recurrences.
* Identifying repeat problems and ensuring they’re escalated to the right technical specialists.
* Coaching and mentoring junior engineers to raise capability across the team.
Main Skills Needed:
* Strong background working in highly secure technical environments.
* Deep knowledge across Cisco networking (switching, routing, wireless, ASA, Firepower), plus core protocols such as TCP/IP, BGP, ICMP, OSPF and IPSEC.
* Experience managing modern firewalls (Cisco, Palo Alto) and enterprise network tools (ISE, Prime, PRTG).
* Solid understanding of virtualised environments and virtual networking (e.g. VMware).
* Familiarity with F5 load balancing (LTM/ASM), ACI and cloud environments (Azure or AWS).
What’s in It for You:
* Work at the heart of a secure, mission-led organisation.
* Exposure to cutting-edge network and security technologies.
* A culture that values professionalism, collaboration and continuous improvement.
* The chance to make a measurable impact in a highly trusted environment.
* Supportive leadership with opportunities to mentor and develop others.
Call to Action:
We’ll keep this simple: if it sounds good, get in touch.We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
By applying you are confirming you are happy to be added to the Addition Solutions mailing list regarding future suitable positions. You can opt out of this at any time simply by contacting one of our consultants.