ASSYSTEM
Plant Modifications Proposal Manager

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Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description Role Purpose ๐ The Lead PMP Manager is responsible for the leadership, coordination, and governance of Plant Modification Proposals (PMPs), ensuring modifications to plant and processes are controlled, safe, and compliant with Site Licence Conditions and SLP 1.02.14 requirements. ๐ ๏ธ The role leads PMP delivery from initiation through to closeout, ensuring effective stakeholder engagement, integration with project controls, and adherence to safety, environmental, and design intent requirements. ๐ฅ The successful candidate will oversee other PMP Managers delivering PMPs and will also deliver PMPs themselves โ this is not solely an โauthoringโ role. Key Responsibilities ๐จโ๐ผ Leadership & Management ๐น Lead and coordinate PMP Managers and support personnel where required. ๐น Provide direction on PMP prioritisation, workload, and lifecycle management. ๐น Ensure alignment with organisational governance, safety case requirements, and modification control processes. ๐น Act as the senior interface for PMP-related matters within projects, programmes, and the OU. ๐ PMP Lifecycle Management ๐น Manage PMPs through their full lifecycle: ๐ Authoring ๐ง Internal review ๐ฃ๏ธ Committee presentation and endorsement ๐๏ธ Implementation oversight ๐ค Handover to operations โ Closeout ๐น Ensure timely and compliant progression of all PMPs in line with site procedures. ๐น Maintain a structured PMP tracker and monitor progress against key milestones. ๐น Ensure effective preparation, implementation, and closeout of plant modifications with appropriate stakeholder engagement throughout. โ๏ธ Governance & Compliance ๐น Ensure compliance with: ๐ Site Licence Condition 22 (control of modifications) ๐ SLP 1.02.14 (Modification or experiment on existing plant) ๐น Conduct internal PMP reviews to ensure quality and completeness prior to submission. ๐น Ensure all required assessments, documentation, and SME inputs are captured. ๐น Support and ensure adherence to Configuration Change Control (CCC) process requirements. ๐ค Stakeholder & Interface Management ๐น Engage with Subject Matter Experts (SMEs) across engineering, safety case, environmental, and operations to support PMP development. ๐น Interface closely with: ๐ค PMP Coordinator ๐ Project Managers and Construction Teams โ๏ธ Design and Engineering teams ๐ก๏ธ Operations and Safety Case representatives ๐น Lead and present PMPs at committee and governance meetings. ๐น Demonstrate effective engagement with SMEs when specialist input is required. ๐ Planning, Reporting & Controls ๐น Attend: ๐ Weekly construction, design, and project meetings ๐ Lead weekly PMP team meetings (tracker updates) ๐ Lead weekly reporting meetings with line management ๐๏ธ Monthly PMP governance / presentation meetings ๐๏ธ Lead monthly planning meetings to update P6 programme ๐น Ensure PMP activities are reflected within the P6 schedule and aligned with project milestones. ๐น Provide clear status reporting, risk visibility, and recovery actions where required. โ ๏ธ Risk, Safety & Assurance ๐น Ensure all modifications consider: ๐ก๏ธ Safety case implications ๐ฑ Environmental impacts โ๏ธ Design intent and plant performance ๐น Identify and escalate risks associated with plant modifications. ๐น Ensure safe implementation of modifications with no adverse impact on operations. Qualifications ๐ง Key Skills & Competencies ๐น Strong knowledge of PMP process and governance ๐น Understanding of nuclear / regulated environment compliance ๐น Experience managing plant modification lifecycle ๐น Strong stakeholder engagement and communication skills ๐น Ability to interpret safety case and engineering requirements ๐น Competence in planning tools (e.g. P6) ๐น Leadership and team coordination capability ๐น Attention to detail and assurance mindset ๐ Qualifications & Training Requirements โ Essential ๐น Demonstrated experience in PMP management ๐น Completion of PMP-related training: ๐ PMP Awareness (EL0114) ๐ PMP Management & Categorisation (S0751F) ๐ PMP Manager Training (MG0422) ๐น ๐ฑ Environmental Awareness (EL0160) ๐น โ ๏ธ COMAH Awareness (FB0060) ๐ Additional Requirements ๐น Evidence of completing Configuration Change Control (CCC) e-learning ๐น Proven attendance and presentation at PMP committees ๐น Demonstrated experience managing PMP closeout ๐น Competence assessed through SQEP process with periodic reassessment ๐น Experience in successfully passing a PMP SQEP interview ๐ฏ Key Accountabilities ๐น ๐ก๏ธ Safe and compliant delivery of plant modifications ๐น ๐ Effective lifecycle management of all assigned PMPs ๐น ๐ Quality and completeness of PMP documentation and reviews ๐น ๐ค Stakeholder engagement and SME coordination ๐น โ๏ธ Adherence to governance and modification control processes ๐ Behavioural Expectations ๐น ๐ Proactive and structured approach to delivery ๐น ๐ผ Strong ownership and accountability ๐น ๐ค Collaborative approach with effective stakeholder engagement ๐น ๐ง Demonstrates sound judgement and escalation where required ๐น ๐ Operates within defined limits of authority and competence Additional Information Whilst we encourage applications from all nationalities, Assystem within the UK are subject to security and export control restrictions due to the nature of work to be undertaken.
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These restrictions mean that factors including your nationality, any previous nationalities you have held, and/or your place of birth may limit those roles that you can perform for the organisation. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our peopleโs ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.


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ASSYSTEM Job: Project Management Type of contract ASSYSTEM: Contracting ASSYSTEM Sector: Nuclear
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