Infrastructure Engineer (PKI) - Paying up to £450 Per Day, Inside IR35, Based in South Wales, 4 to 6 Month Contract, To Start ASAPYour new companyYou will be working with a leading organisation that is based in South Wales. Your new roleWe''re seeking an Infrastructure Engineer with strong PKI expertise to support a critical upgrade of an enterprise Public Key Infrastructure (PKI) environment, moving from Windows Server 2016 to Server 2025.This is a hands-on delivery role for someone who has personally led or contributed to PKI upgrades or migrations and can step in quickly to help drive the programme forward.The Role:- Support the upgrade and modernisation of an existing PKI estate- Work across Microsoft Certificate Services (AD CS)- Ensure a secure and stable migration to Server 2025Review and optimise:- CA hierarchy (Root and Subordinate)- Certificate lifecycle and auto-enrolment- CRL / AIA configuration- Troubleshoot and resolve PKI-related issues during transition- Work closely with internal teams to ensure smooth deliveryWhat you''ll need to succeed- Proven experience delivering PKI upgrades or migrations end-to-end- Strong expertise in:Microsoft PKI / AD CSWindows Server (2016 newer versions)- Solid understanding of:Certificate lifecycle managementSecure enterprise infrastructure environments- Ability to operate as a hands-on engineer, not purely advisoryWhat you need to do nowIf you''re interested in this role, click ''apply now'' to forward an up-to-date copy of ..... full job details .....