3rd Line Build & Support Engineer

As a 3rd Line Build and Support Engineer, you will deliver advanced technical support, resolve complex incidents, and head the build and deployment of secure, reliable Information Technology (IT) systems. Acting as the escalation point for Second Line Technicians, you will provide in-depth troubleshooting, proactive system monitoring, performance optimisation, and ensure environments are fully prepared and resilient.

You will play a key role in maintaining stability while continuously improving system performance, ensuring the organisation can operate efficiently and securely at scale.

Over the next three to five years, you will be central to advocating the adoption of advanced technologies, modernising infrastructure, and strengthening cyber resilience. Your work will help enable scalable, future-ready Information Technology capabilities that support business growth and operational excellence.

• Act as the main escalation point for complex technical incidents, delivering advanced diagnosis across servers, networks, cloud platforms, applications and end-user environments
• Monitor, maintain and optimise systems to ensure stability, performance and security, including patching, backup management, antivirus and proactive health checks
• Troubleshoot and manage a broad technology estate, including physical and virtual servers, cloud platforms (such as Microsoft Azure and Amazon Web Services), identity and access management, endpoint management tools, networking, backup and disaster recovery, and security tooling
• Carry out root cause research to resolve underlying issues and implement long-term fixes that reduce repeat incidents
• Ensure all activity follows Information Technology Infrastructure Library (ITIL) processes, advocating a compliant and well-governed environment
• Own service transition activities, ensuring new and updated services are secure, valid and effectively handed into business-as-usual assistance
• Work with third-party providers to resolve specialist issues and maintain service continuity
• Maintain clear, accurate and up-to-date documentation for infrastructure, configurations and assistant processes
• Deliver infrastructure projects, including system migrations, upgrades, integrations and new service deployments
• Build, configure and deploy servers, cloud services, end-user devices, network components and system upgrades, maintaining standard builds, golden images and secure configuration baselines
• Own infrastructure modernisation through the adoption of cloud technologies, automation and improved tooling
• Strengthen resilience through proactive monitoring, capacity planning and robust backup and recovery processes
• Contribute to infrastructure strategy, ensuring systems scale effectively to help business growth and evolving digital needs
• Identify and deliver continuous improvement opportunities to streamline processes, reduce recurring issues and enhance system performance
• Enhance cybersecurity by maintaining strong patching, endpoint protection, secure configurations and system hardening practices

• Proven experience in third-line support or advanced infrastructure engineering
• Knowledge of Microsoft operating systems and enterprise technologies
• Experience diagnosing and resolving complex hardware, software and application issues
• Solid comprehension of Windows, Unix and Structured Query Language (SQL) Server environments
• Expertise in identity and access management including Active Directory, Microsoft Entra ID and Group Policy
• Experience with Microsoft Azure, including workloads, Entra ID and Conditional Access
• Virtualisation experience using VMware or Hyper-V
• Endpoint management experience with Microsoft Intune, Windows Autopilot and Microsoft Endpoint Configuration Manager (MECM)
• Good insight of networking ethics including Transmission Control Protocol/Internet Protocol (TCP/IP), Virtual Local Area Networks (VLANs), firewalls and Virtual Private Networks (VPNs)
• Experience with storage area networks and enterprise storage solutions
• Knowledge of backup and disaster recovery solutions
• Familiarity with security tooling including Endpoint Detection and Response (EDR), Extended Detection and Response (XDR), vulnerability management and identity protection
• Experience with Microsoft 365 technologies
• Experience using IT service management tools within an Information Technology Infrastructure Library (ITIL) environment
• Demonstrates a customer-focused service approach

At Weetabix, we believe that diverse teams drive better ideas, stronger decisions, and a more inclusive workplace for everyone. We’re committed to building an organisation where people from all walks of life feel they belong-where different voices, experiences, and backgrounds are valued and respected.

• Closing date: 28th July
• Interview process: TEAMS followed by Face to Face at our site in Burton Latimer.
• Working pattern: You’ll spend three days a week in the office, creating great opportunities to collaborate, strengthen team connections and build high-impact working relationships face to face.

We’re happy to make reasonable adjustments throughout the recruitment process. Just let us know how we can support you.

Weetabix is on an exciting growth journey, and many of the opportunities we are recruiting for are newly created roles. These positions reflect our investment in people, capabilities and innovation as we continue to build for the future., Competitive salary & Annual Flexible benefits

We offer a competitive salary and a comprehensive benefits package designed to support your wellbeing, career, and life outside work.

• Annual bonus
• Double-matched pension scheme (up to 12% from us)
• 25 days annual leave increasing with service
• Annual Salary review
• Healthcare plan
• Discounted Weetabix products

To support our employees, we also offer:

• Continued investment in your personal development
• We believe in balance, whether it’s for family, rest or simply time for you. As well as your holiday entitlement, you can purchase up to 5 days of additional annual leave
• Access to 24/7 counselling service (via Grocery Aid partnership)
• The freedom of Flexible Work Opportunities
• Enhanced Maternity / Paternity / Adoption Leave
• Additional Time Off for Fertility Treatment and Neonatal Care
• Working Parents Support Group
• Fully stocked kitchens filled with our delicious products for you to enjoy

Please note: We benchmark roles based on your skills and experience, so we do not advertise fixed salary ranges.

Unfortunately, we are unable to provide sponsorship for this position; therefore, we are seeking candidates who do not require sponsorship.

We utilise our Preferred Agency Supplier Partners as and when we require additional support