Job Description AECOM is seeking an Associate-level Chartered Mechanical or Electrical Building Services Engineer to lead Mechanical, Electrical and Public Health (MEP) design delivery for a growing portfolio of Prison and Secure Estate projects across the UK. This role is a senior technical and leadership position within the Buildings & Places business, responsible for providing design leadership, technical assurance, and project delivery excellence across complex custodial environments. The successful candidate will act as MEP Lead, interfacing closely with clients such as the Ministry of Justice (MoJ), HM Prison & Probation Service (HMPPS), architects, structural engineers, contractors, and internal multi-disciplinary teams. The role combines hands-on technical leadership, client engagement, team mentoring, and project governance, supporting AECOM’s ambition to deliver safe, resilient, compliant, and sustainable prison infrastructure. Key Responsibilities Lead the MEP design strategy for prison and secure facilities projects, from feasibility through to detailed design and construction support Act as MEP Discipline Lead, ensuring coordinated Mechanical, Electrical and Public Health design outputs Provide technical authority and assurance on designs produced by internal teams and supply chain partners Ensure compliance with: UK Building Regulations HTMs, BS standards and CIBSE guidance MoJ / HMPPS technical standards and employer’s requirements Manage and mitigate technical risk in complex, safety-critical environments Lead MEP input on multi-disciplinary design teams, ensuring programmes, budgets and quality objectives are met Review contractor proposals, technical submissions, value engineering initiatives and design changes Support construction-phase activities including RFIs, site inspections, commissioning strategy and handover Contribute to BIM Level 2 delivery, design reviews and clash resolution Minimum requirements: Significant experience delivering Mechanical or Electrical Building Services design on complex buildings Proven experience in delivering MEP projects for the MoJ including Fire Safety Improvements (FSI) projects Strong understanding of: MoJ and its structure and standards Secure environment constraints (safety, tamper resistance, resilience) Multi-disciplinary coordination 3D design and delivery to MoJ BIM protocol Contractor interfaces and technical approvals on Moj sites. Experience acting as MEP Lead or Technical Authority. Ability to lead a team and act as MEP lead for contractor works representing both disciplines. Proven ability of delivering multi-million pound schemes Commercial and programme awareness within a consultancy environment Candidates will ideally hold UK security clearance (e.g. BPSS, SC, or enhanced vetting relevant to prison projects)