Senior project manager Work, Jobs in Cockermouth (with Salaries)

Plant Modifications Proposal Manager
Assystem —Seascale
- PMP
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Project Controls Manager
AtkinsRéalis —Whitehaven
- Full-time
- Hybrid work
- Management
- Communication skills
Planning Manager
Amentum —Sellafield
- Full-time
- Analysis skills
- Project management
- Continuous improvement
- Employee assistance programme
- Flexible schedule
3d
Senior Planning Engineer
Amentum —Sellafield
- Full-time
- Analysis skills
- Project management
- Continuous improvement
- Employee assistance programme
- Flexible schedule
3d

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Plant Modifications Proposal Manager

Assystem -
Seascale

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Job details

Qualifications

PMP
Primavera P6
Communication skills

Full job description

Nuclear
Contracting / Project Management
Seascale
United Kingdom
10/07/26
On site

About Assystem

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
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.

️ 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.

The successful candidate will oversee other PMP Managers delivering PMPs and will also deliver PMPs themselves — this is not solely an “authoring” role.

Key Responsibilities

‍

Leadership & Management

Lead and coordinate PMP Managers and support personnel where required.
Provide direction on PMP prioritisation, workload, and lifecycle management.
Ensure alignment with organisational governance, safety case requirements, and modification control processes.
Act as the senior interface for PMP-related matters within projects, programmes, and the OU.

PMP Lifecycle Management

Manage PMPs through their full lifecycle:
Authoring
Internal review
️ Committee presentation and endorsement
️ Implementation oversight
Handover to operations
✅ Closeout

Ensure timely and compliant progression of all PMPs in line with site procedures.
Maintain a structured PMP tracker and monitor progress against key milestones.
Ensure effective preparation, implementation, and closeout of plant modifications with appropriate stakeholder engagement throughout.

️ Governance & Compliance

Ensure compliance with:
Site Licence Condition 22 (control of modifications)
SLP 1.02.14 (Modification or experiment on existing plant)

Conduct internal PMP reviews to ensure quality and completeness prior to submission.
Ensure all required assessments, documentation, and SME inputs are captured.
Support and ensure adherence to Configuration Change Control (CCC) process requirements.

Stakeholder & Interface Management

Engage with Subject Matter Experts (SMEs) across engineering, safety case, environmental, and operations to support PMP development.

Interface closely with:
PMP Coordinator
Project Managers and Construction Teams

️ Design and Engineering teams

️ Operations and Safety Case representatives

Lead and present PMPs at committee and governance meetings.
Demonstrate effective engagement with SMEs when specialist input is required.

Planning, Reporting & Controls

Attend:
Weekly construction, design, and project meetings
Lead weekly PMP team meetings (tracker updates)
Lead weekly reporting meetings with line management
️ Monthly PMP governance / presentation meetings
️ Lead monthly planning meetings to update P6 programme

Ensure PMP activities are reflected within the P6 schedule and aligned with project milestones.
Provide clear status reporting, risk visibility, and recovery actions where required.

️ Risk, Safety & Assurance

Ensure all modifications consider:
️ Safety case implications
Environmental impacts

️ Design intent and plant performance

Identify and escalate risks associated with plant modifications.
Ensure safe implementation of modifications with no adverse impact on operations.

My profile

Key Skills & Competencies

Strong knowledge of PMP process and governance
Understanding of nuclear / regulated environment compliance
Experience managing plant modification lifecycle
Strong stakeholder engagement and communication skills
Ability to interpret safety case and engineering requirements
Competence in planning tools (e.g. P6)
Leadership and team coordination capability
Attention to detail and assurance mindset

Qualifications & Training Requirements

✅ Essential

Demonstrated experience in PMP management

Completion of PMP-related training:
PMP Awareness (EL0114)
PMP Management & Categorisation (S0751F)
PMP Manager Training (MG0422)

Environmental Awareness (EL0160)

️ COMAH Awareness (FB0060)

Additional Requirements

Evidence of completing Configuration Change Control (CCC) e-learning
Proven attendance and presentation at PMP committees
Demonstrated experience managing PMP closeout
Competence assessed through SQEP process with periodic reassessment
Experience in successfully passing a PMP SQEP interview

Key Accountabilities

️ Safe and compliant delivery of plant modifications
Effective lifecycle management of all assigned PMPs
Quality and completeness of PMP documentation and reviews
Stakeholder engagement and SME coordination

️ Adherence to governance and modification control processes

Behavioural Expectations

Proactive and structured approach to delivery
Strong ownership and accountability
Collaborative approach with effective stakeholder engagement
Demonstrates sound judgement and escalation where required
Operates within defined limits of authority and competence

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.

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 people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

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senior project manager jobs in cockermouth

Plant Modifications Proposal Manager

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Senior Planning Engineer

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