3rd Line Technical Specialist

Omega; Southampton; On-site; GBP 83,000 - 120,000; Full time

Job summary

Premier Foods is seeking an Infrastructure Specialist on a 6‑month contract to deliver complex IT infrastructure solutions. The role is hybrid, requiring 2–3 days on-site in Southampton and collaboration with PMO, Architecture, and other business units.

You will produce LLDs, plan migrations, ensure governance compliance, and provide ELS post go-live support across multi‑workstream projects with external suppliers as needed.

Qualifications

• ITIL practices related to change management.
• Core IT infrastructure: compute, storage, virtualization.
• Microsoft ecosystem technologies: Windows Server, AD, MECM, Print Services, Entra ID, Intune, AutoPilot.
• Networking incl. SD-WAN architecture and optimisation.
• Switching (Aruba/Cisco), advanced routing and firewall technologies.
• Windows desktop deployment and lifecycle management with Intune/SCCM.

Responsibilities

• Deliver project implementation across IT infrastructure.
• Create LLDs and configuration workbooks for implementations.
• Plan and execute build, configuration, and migration tasks across on‑premises and cloud.
• Ensure all changes comply with Premier Foods’ change control process.
• Complete production handovers with Service Operations, including knowledge articles and DR/backup readiness.
• Support service transition and update the service catalogue with new items.
• Provide ELS post go-live, track known errors, and schedule readiness reviews.
• Operate within PMO stage-gate governance with status updates and acceptance criteria.
• Liaise with external suppliers; validate designs, check deliverables against contracts/SLAs.
• Ensure operational activity aligns with Enterprise Architecture principles and policies.
• Perform upgrades and maintenance per manufacturer recommendations.
• Document all deliverables per guidelines and IT Security Policy.
• Work from the Winchester office a minimum of three days per week.

Skills

ITIL practices

Change management

Project delivery

Tools

Windows Server

Active Directory

MECM

Intune

Entra ID

AutoPilot

Print Services

SD-WAN

Aruba/Cisco switching

Routing

Firewall technologies

SCCM

Job description

Job Type: Contract, Hybrid (2-3days onsite)

Duration: 6 Months

Job Location: Southampton (UK travel required)

Profile – Infrastructure Specialist

Our client is a leading figurehead in the UK food sector, with an unparalleled pedigree dating back to the early 18th century. They are currently seeking a Technical Specialist to join their team busy Technical Services Team.

Job Role – Infrastructure Specialist

Reporting to the Technical Support Manager the Technical Specialist shall play a pivotal role in delivering complex technical solutions and smaller change initiatives. You will work closely with stakeholders across PMO, Architecture, and the wider business, ensuring alignment with governance standards and technical strategy.

The successful candidate will be comfortable working across several projects or changes concurrently, demonstrating agility and strong organisational skills. This is a senior technical role for a seasoned professional with deep expertise in infrastructure and project delivery, capable of operating at pace across multiple workstreams.

Duties – Infrastructure Specialist

• Deliver project implementation across IT infrastructure.
• Create Low-Level Designs (LLDs) and configuration workbooks for all implementations, following internal standards.
• Plan and execute build, configuration, and migration tasks across on-premises and cloud platforms.
• Ensure all technical implementations and changes comply with Premier Foods’ change control process.
• Complete production handovers with Service Operations, including knowledge articles, monitoring/alerting, reporting, and DR/backup readiness before warranty/ELS exit.
• Play a pivotal role in service transition, ensuring the service catalogue is updated with new request items.
• Provide Early Life Support (ELS) post go-live, track known errors, and schedule readiness reviews for transition to BAU.
• Operate within PMO stage-gate governance; prepare status updates, acceptance criteria, and ensure solution design meets ARB/security requirements for larger initiatives.
• Liaise with and supervise external suppliers when they are the primary delivery resource; validate designs, check deliverables against contracts/SLAs, and drive remediation.
• Ensure all operational activity aligns with Enterprise Architecture principles, policies, and guidelines.
• Perform upgrades and maintenance on technologies supporting Premier Foods environments in line with manufacturer recommendations.
• Document all deliverables in accordance with stipulated guidelines and the IT Security Policy.
• Work from the Winchester office a minimum of three days per week.

Experience/Qualifications – Infrastructure Specialist

• Skilled in ITIL practices, particularly relating to change management.
• Strong understanding of core IT infrastructure components across compute, storage, and virtualisation.
• Practical, detailed knowledge of Microsoft ecosystem technologies: Windows Server, Active Directory, Microsoft Endpoint Configuration Manager (MECM), Print Services, Entra ID, Intune, AutoPilot, and related tools.
• Knowledge of enterprise networking, including SD-WAN architecture and optimisation.
• Hands-on experience with network switching (Aruba/Cisco), advanced routing, and firewall technologies
• Expertise in Windows desktop deployment and lifecycle management using Intune/SCCM.

Candidates who are currently a Principal Infrastructure Engineer, Senior Infrastructure Engineer, Lead Infrastructure Engineer, Infrastructural Technical Lead, Principal Systems Engineer, Infrastructure Architect, Solutions Architect, Senior Technical Lead, Delivery Lead and Infrastructure Programme Engineer could be suitable for this role.