Senior Engineer Infrastructure Operations Linux
Posted Today by SOLOS Consultants Ltd
£602 Per day
Inside
Hybrid
MK19, Tathall End, Milton Keynes
Summary: The Senior Engineer Infrastructure Operations Linux role involves providing expert-level support for enterprise Linux platforms within a secure, mission-critical environment. The position requires hands-on experience in maintaining and enhancing infrastructure, supporting both operational and project-based tasks, and leading automation initiatives. The role is hybrid, based in Milton Keynes, and requires a strong background in regulated environments. Candidates must be British nationals eligible for security clearance.
Key Responsibilities:
- Provide expert-level support across enterprise Linux platforms
- Maintain and enhance secure, assured infrastructure environments
- Support both BAU operations and project-based deliverables
- Lead conversations around infrastructure automation and environment growth
- Build and maintain development environments
- Containerise applications and services
- Support modern deployment approaches alongside traditional platform operations
- Work closely with cross-functional infrastructure specialists
- Produce and maintain high-quality operational documentation
- Contribute to knowledge transfer across the team
Key Skills:
- Strong Linux system administration (enterprise level)
- Experience supporting secure production platforms
- Containerisation experience (e.g. Docker or similar)
- Building and maintaining development environments
- Automation and infrastructure improvement initiatives
- Working within formal IT service management frameworks
- Strong troubleshooting and performance optimisation skills
Salary (Rate): £602/day
City: Milton Keynes
Country: United Kingdom
Working Arrangements: hybrid
IR35 Status: inside IR35
Seniority Level: Senior
Industry: IT
description: Senior Engineer Infrastructure Operations Linux
PAYE Rate: £469.98 per day
Umbrella Rate: £602.83 per day
Contract | Inside IR35
Duration: 6 months initially (with potential extensions)
Hybrid – Milton Keynes (approx. 60% onsite)
We’re supporting a high-profile government-aligned organisation delivering secure, mission-critical infrastructure services. They are looking for an experienced Senior Infrastructure Engineer (Linux SME) to join their specialist infrastructure team. This is a hands-on role operating within a secure, enterprise-scale environment where stability, performance and security are paramount.
The Role
As a Linux Subject Matter Expert, you will:
- Provide expert-level support across enterprise Linux platforms
- Maintain and enhance secure, assured infrastructure environments
- Support both BAU operations and project-based deliverables
- Lead conversations around infrastructure automation and environment growth
- Build and maintain development environments
- Containerise applications and services
- Support modern deployment approaches alongside traditional platform operations
- Work closely with cross-functional infrastructure specialists
- Produce and maintain high-quality operational documentation
- Contribute to knowledge transfer across the team
You’ll be operating within structured service management and security frameworks, so experience in highly regulated environments is essential.
Required Experience
- Strong Linux system administration (enterprise level)
- Experience supporting secure production platforms
- Containerisation experience (e.g. Docker or similar)
- Building and maintaining development environments
- Automation and infrastructure improvement initiatives
- Working within formal IT service management frameworks
- Strong troubleshooting and performance optimisation skills
Desirable Certifications
One or more of the following:
- RHCSA (Red Hat Certified System Administrator)
- RHCE (Red Hat Certified Engineer)
- LFCS (Linux Foundation Certified System Administrator)
- LPIC-1 or LPIC-2
Security & Eligibility
Due to the nature of the work:
- You must be a British national (single or dual nationality)
- You must have resided in the UK for at least 2 of the last 5 years
- You must be eligible to obtain SC (Security Clearance)
Clearance does not need to be held currently, but you must be able to pass vetting (6–8 week process).
Working Arrangements
Hybrid role – minimum 60% onsite at Hanslope Park (Milton Keynes)
Occasional travel within London/Milton Keynes area
Standard professional working week (37.5+ hours)
On-call rota participation required
Minimum 6 shifts per 28-day cycle
Flat fee paid per shift
This is an opportunity to work within a highly secure, nationally significant environment where infrastructure resilience and security truly matter.
If this role is of interest and you meet the above criteria, then please apply immediately.