Principal Mechanical Engineer

Join to apply for the Principal Mechanical Engineer role at Mott MacDonald.

Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across global industries, delivering projects that define the future and create societal impact. As an employee-owned business, we aim to empower our people to feel valued and supported while delivering for clients and communities.

We are looking for a Principal Mechanical Engineer to join our growing Nuclear; Defence and Civil division. This role offers the opportunity to work on a diverse portfolio of projects, including nuclear decommissioning, defence, and nuclear new build. You will collaborate with clients locally and nationally and contribute to high-impact energy and infrastructure projects.

This is a fantastic opportunity to deliver energy sector solutions while advancing your career in a supportive, forward-thinking environment.

• Lead mechanical engineering aspects of multi-discipline design projects from feasibility to detailed design stages
• Work on nuclear decommissioning, defence, and energy infrastructure projects
• Liaise with clients to develop and deliver innovative solutions
• Produce and oversee high-quality design and technical documentation
• Provide quality assurance through surveillance, review, and checking of outputs
• Collaborate with multi-disciplinary teams to deliver fit-for-purpose engineering solutions
• Visit client sites as required and promote opportunities to strengthen client relationships
• Ensure safety is integrated into mechanical design and project delivery
• Present and defend solutions in client-facing environments

Essential

• Chartered status with the IMechE or other relevant body (or progress toward chartered status)
• Experience in mechanical engineering design within a highly regulated industry, preferably nuclear
• Broad knowledge of industry standards, legislation, and engineering principles
• Strong commercial awareness with experience in FEED projects
• Excellent communication skills with clients and stakeholders
• Ability to manage and prioritise multiple projects in a dynamic environment
• Client-facing experience and ability to build strong client relationships
• Experience leading and working with multi-disciplinary teams
• Proactive in seeking input from other engineers and team members to enhance outcomes
• Committed to continuous professional development and staying updated on industry advances

Note: Offers for this role are conditional upon obtaining the appropriate level of Security Clearance.

Mott MacDonald Ltd. is not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This follows changes to the Skilled Worker route by the UK Government in April 2024. We welcome applications from candidates eligible for alternative immigration routes that do not require Skilled Worker sponsorship now or in the future.

We offer a hybrid working policy that supports flexibility, wellbeing, and trust, enabling you and your manager to decide how you work most effectively to meet client, team, and personal commitments.

We are committed to equality, diversity, and inclusion, and to creating an inclusive environment where everyone can contribute.

If you need any support to apply or attend an interview, please contact to discuss how we can assist you.

We offer a comprehensive benefits package, including:

• Health and wellbeing: Private medical insurance, health plan, wellbeing program, and flexible benefits to extend coverage to family
• Financial wellbeing: Pension contributions, life assurance, income protection, flexible benefits, and potential annual bonus share
• Lifestyle: Generous holiday allowance, saving schemes and discounts
• Enhanced family and carers leave: Maternity, adoption, paternity/partners leave, and shared parental leave
• Learning and development: Professional subscription, mentoring, training, and development opportunities
• Networks, communities, and social outcomes: Employee networks supporting diverse communities

Location(s): Glasgow, Altrincham, Bristol, UK

Contract Type: Permanent

Work Pattern: Full Time

Market: Energy

Discipline: Mechanical

Job Ref: 10824

Recruiter Contact: Erinda Hazizi