Company Description

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!

Job Description

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.

Key Responsibilities

• 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.

Qualifications

Required Skills:

• Proven experience delivering projects in technically complex, highly regulated environments, ideally nuclear or similar safety‑critical sectors.
• Engineering design and execution strategies
• Managing multi‑discipline EPCM projects
• 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.

Required Qualifications:

• A Bachelor’s or Master’s degree in Mechanical or Electrical Engineering or Project Management, or equivalent military experience.

Desirable Skills:

• Experience working on nuclear new build projects
• Experience within nuclear, energy, or other highly regulated environments
• Experience supporting construction reporting and performance analysis

Additional Information

Why join us? 

We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies.

At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals.

Join a passionate team and help build tomorrow, today.

In short you get: 

• A personalised career path and a rewarding management style 
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Cycle & Tech Scheme 
• Employee assistance programme
• Life insurance & Pension Scheme
• Social atmosphere, regular gatherings & team buildings
• Flexible way of working (role dependent)

We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes. 

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know. 

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.