Project Manager – Mechanical Equipment​/Valves

Project Manager – Mechanical Equipment / Valves

• Full-time
• Contract Type:
  Permanent
• Region:
  South West UK

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting‑edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.

Join us and start building tomorrow’s world today!

We are seeking a highly capable Project Manager – Mechanical Equipment/Valves to lead the delivery of complex contract packages across a major nuclear programme. This role is ideal for project professionals who thrive in technically challenging environments and want to take ownership of high‑value, safety‑critical engineering packages.

You will be responsible for ensuring that mechanical equipment and valve packages are delivered safely, on time, to budget, and in full compliance with nuclear quality and technical requirements. Working at the centre of a multidisciplinary environment, you will collaborate with engineering, commercial, quality, manufacturing, and site teams to ensure seamless delivery across the full lifecycle.

• Drive contract and package delivery to meet safety, schedule, cost, and technical performance requirements.
• Monitor programme progress
  , tracking milestones, risks, deadlines, and budget performance, and reporting to senior stakeholders.
• Manage and resolve issues across the contract, escalating risks and ensuring timely resolution of NCRs, technical queries, and manufacturing challenges.
• Lead contract administration including variations, claims, instructions, and commercial governance (with Commercial Manager support).
• Oversee Tier 1 supply chain performance
  , ensuring nuclear safety and quality across up to 100+ international Tier 2 and Tier 3 suppliers.
• Ensure Level 3 schedules are developed, maintained, and aligned with overall project schedules.
• Support qualification activities to demonstrate nuclear safety performance of mechanical equipment and valves.
• Coordinate with site teams to ensure all pre‑shipment and delivery requirements are met.
• Secure and manage project resources
  , ensuring SQEP compliance and identifying capability gaps.
• Develop and implement delivery strategies aligned with the Programme Execution Plan (PEP).
• Maintain strong stakeholder communication
  , ensuring alignment across engineering, commercial, and site teams.
• Apply Earned Value Management (EVM) and other commercial reporting tools.
• Embed continuous improvement
  , capturing lessons learned and best practice.
• Interface with other programmes to maintain a holistic view of project progress and cross‑programme dependencies.

• Proven experience delivering projects in technically complex, highly regulated environments
  , ideally nuclear or similar safety‑critical sectors.
• Engineering design and execution strategies
• Procurement and delivery of complex contracts
• Cost, risk, schedule, and change control, including Earned Value tools
• Commercial close‑out and claims negotiation
• Strong stakeholder engagement and relationship‑building skills.
• Excellent project management, financial management, and change management capability.
• Proficient with scheduling, estimating, risk, and project controls tools.
• Experience managing contractors and consultants on major construction projects, ideally under NEC or FIDIC frameworks.
• Strong communication, presentation, and facilitation skills with the ability to influence across teams.

• A Bachelor’s or Master’s degree in Mechanical or Electrical
  Engineering or Project Management
  , or equivalent
  military experience
  .
• Experience working on nuclear new build projects
• Experience with in nuclear, energy, or other highly regulated environments
• Experience supporting construction…