3rd Line Infrastructure Engineer - Windows

• Provide expert third-line support across enterprise-scale Windows environments.
• Diagnose and resolve complex infrastructure issues.
• Design, implement and support Windows-based infrastructure solutions.
• Support project delivery, upgrades and technical change activity.
• Contribute to service improvement and infrastructure optimisation initiatives.
• Produce and maintain technical documentation.
• Collaborate with customers, internal teams and technical stakeholders.
• Participate in an on-call rota supporting critical services when required.
• Take ownership of complex technical issues and contribute to infrastructure projects.
• Help maintain the security, availability and performance of critical business systems.
• Investigate challenging incidents and implement infrastructure enhancements.

Technologies:

• Active Directory
• Azure
• Support
• LAN
• PowerShell
• Security
• VMware
• Windows
• Cloud
• DevOps

• Demonstrable experience in large-scale enterprise infrastructure environments, with strong troubleshooting and analytical skills.
• Experience in a third-line infrastructure or senior support role.
• Experience with several of the following technologies is advantageous: Active Directory, Group Policy, DNS and DHCP; Microsoft Windows Server; Azure AD/Entra ID, ADFS and SSO; VMware and virtualisation technologies; Exchange and Microsoft collaboration technologies; SCCM/endpoint management; PKI and certificate management; PowerShell scripting and automation; infrastructure monitoring and security tooling; networking fundamentals, including LAN, WAN, routing and firewalls.
• Able to work independently and solve complex technical challenges.
• Strong communication skills and a customer-focused approach.
• Eligible to obtain Security Clearance or already hold clearance.
• Passionate about technology and continuous improvement.

We are recruiting for a Third Line Infrastructure Engineer based in Hatfield, Derby or Nottingham, with hybrid working and a competitive salary plus benefits. We are partnering with a leading technology services organisation that supports complex and secure IT environments, including mission-critical services in a regulated enterprise environment. You will join a high-performing technical team and work across a diverse infrastructure estate, alongside experienced engineers and technical specialists. We offer exposure to enterprise-scale technologies, professional development and a collaborative environment where expertise is valued. Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for temporary worker supply in the UK; Modis International Ltd and Modis Europe Ltd are equal opportunities employers.