Boundary SMEMust have an Active DV ClearanceAn exciting opportunity has arisen for a Boundary SME to join a multi skilled agile team working within a secure Defence and National Security environment. This role offers the chance to design, prototype, and deliver secure boundary solutions across high assurance systems, supporting both Legacy and modern technologies.About the Role - Boundary SMEAs a Boundary SME, you will own the full life cycle of a work package from design through prototyping, user piloting, and production.You will create proof of concepts, high level design documentation, and ensure traceability against functional and non functional requirements.You will script repeatable unit tests, troubleshoot issues, and support early life activities to ensure smooth adoption into production environments.You will collaborate across engineering and stakeholder groups to remove blockers and maintain delivery momentum.What We''re Looking For - Boundary SMEStrong experience delivering solutions using Agile methodologies.Deep expertise in email and web Proxy gateways for high security systems.Strong background in security lockdowns, clamps, and resolving issues arising from secure configurations.Advanced knowledge of Windows administration, Active Directory, PKI, VMware, Windows Server 2022, gold builds, and system hardening.Experience with PowerShell and Python for automation and test creation.Familiarity with Ansible, Terraform, Nexus configuration repositories, and automate