Salary: £55,000 - 60,000 per year Requirements: Strong hands-on experience as an Infrastructure or Senior Infrastructure Engineer Proven experience across Microsoft 365, Azure, and hybrid environments Strong knowledge of Active Directory, Azure AD, SSO, and ADFS Advanced PowerShell scripting for automation and troubleshooting Experience with endpoint and systems management tools such as Intune, SCCM/MECM, and WSUS Knowledge of VPN, DirectAccess, and secure remote access technologies Hands-on experience supporting Exchange, Teams, SharePoint, and OneDrive Responsibilities: Manage and optimise on-prem and cloud infrastructure, including Microsoft 365, Azure, Active Directory, Azure AD, SSO, and ADFS Administer and support Microsoft Exchange (2010–2019) and Office 365 environments Manage email gateways and security solutions such as Proofpoint, IronPort, and EOP Monitor and troubleshoot mail flow, message tracking, SPF, DKIM, DAGs, and patching Support collaboration platforms including Microsoft Teams, SharePoint, OneDrive, and Outlook Automate infrastructure tasks and operational processes using PowerShell Assist with disaster recovery planning, documentation, and failover testing Provide 3rd line support and participate in an on-call rota as required Technologies: Active Directory Azure Cloud Flow Support Microsoft 365 Office 365 PowerShell Security SharePoint VPN DevOps More: We are Khuda Technology, collaborating with a leading Managed Service Provider to recruit an experienced Senior Infrastructure Engineer located in Croydon - Crawley. This permanent role is critical for supporting a major enterprise client and involves working within our infrastructure and cloud operations team. We offer a competitive salary of £50,000 – £60,000, and you will have the opportunity to contribute to the stability, security, and optimisation of both on-prem and cloud infrastructure. last updated 4 week of 2026