Infrastructure Engineer

At Gist, we're proud to be part of the M&S Group, the logistics engine behind M&S Food.

From our distribution centres to our transport operations and support functions, we connect people, technology and expertise to ensure the right products reach the right stores at the right time.

As we continue to invest in our people, technology and network, there's never been a more exciting time to join Gist and help shape the future of food logistics.

Help shape, secure and modernise the technology that keeps Gist moving.

At Gist, technology is at the heart of how we operate. We are looking for an experienced Infrastructure Engineer to help us evolve our technology estate across infrastructure, cloud, networking, end-user computing and cybersecurity.

This is more than a traditional infrastructure support role, you will have the opportunity to influence how our technology is designed, secured and delivered, combining strategic thinking with hands on engineering to build secure, resilient and scalable solutions that support our business.

You will work alongside internal teams, managed service providers and technology partners, providing technical leadership and expertise across a broad and varied infrastructure landscape.

Reporting into the Head of Technology Operations & Systems, you will shape our infrastructure strategy by assessing and modernising existing technology platforms, developing technical standards and roadmaps, evaluating new technologies, and translating business requirements into practical, secure solutions.

You will design, build and support on-premises and Microsoft Azure infrastructure, helping drive cloud adoption while maintaining strong standards for governance, security, connectivity and resilience. You will improve IAM across Active Directory, ADFS and Microsoft Entra , implementing MFA, Conditional Access and PAM solutions to strengthen identity security.

You will build resilient networks, working in collaboration with networking teams to improve performance, resilience and security across LAN, wireless, SD-WAN and internet connectivity, including segmentation and secure remote access putting security and resilience first by strengthening infrastructure security through vulnerability remediation, platform hardening and lifecycle management, while supporting backup, disaster recovery and business continuity.

This amazing role will also see you automating and improving processes using Power Shell and Linux scripting with a focus on reducing manual effort and improving efficiency. You will also provide technical leadership, challenge suppliers, mentor colleagues and act as an escalation point for complex infrastructure issues.

We are looking for someone who combines deep technical knowledge with a practical, solutions focused mindset. You will ideally be able to demonstrate:

• Extensive experience securing enterprise infrastructure environments.
• Strong knowledge of Active Directory, ADFS, Microsoft Entra , MFA and Conditional Access.
• Experience with IAM and PAM.
• Strong Windows Server and Red Hat Enterprise Linux administration experience.
• Experience with Microsoft Azure and hybrid cloud environments.
• Knowledge of enterprise networking, wireless networking, firewalls and network segmentation.
• Experience in infrastructure security, hardening and vulnerability management.
• A track record of delivering infrastructure projects and meaningful technology improvements.
• Experience using Power Shell / Linux scripting to automate and simplify.
• Strong troubleshooting and problem solving skills.
• Experience working with managed service providers and third-party technology partners.
• A proven ability to deliver practical, measurable improvements to…