Role: Lead Infrastructure Engineer/Architect (DV)Location: South West. Clearance: DVAn opportunity to join a secure delivery team as a hands-on Lead Infrastructure Engineer with strong architectural skills, owning the design and delivery of secure, mission-critical platforms for a major programme.Key ResponsibilitiesAct as senior technical lead, owning end-to-end design and delivery of infrastructure and platform solutions.Produce and maintain HLDs and LLDs, translating requirements into clear build, configuration and runbooks for engineering teams.Lead and assure technical designs, builds and change requests, ensuring they meet agreed architecture, security and service standards.Provide hands-on leadership across build, configuration, integration, automation and troubleshooting activities.Work closely with Delivery Managers, Architects, Service andamp; Security Leads and engineers to deliver secure, resilient and supportable platforms into live.Mentor engineers, lead technical workstreams and act as a trusted advisor to customer stakeholders, explaining options, risks and trade-offs clearly.Identify opportunities to optimise, automate and reduce technical debt across the stack.What We''re Looking ForProven experience as a Lead/Principal Engineer delivering complex, large-scale infrastructure or platform solutions.Strong track record owning solutions across the full life cycle (design, build, test, deploy, operate).Deep understanding of core IT domains, withhands-on strength