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Principal Mechanical Engineer - Nuclear

Job in Olney, Buckinghamshire, MK46, England, UK
Listing for: AECOM
Full Time position
Listed on 2026-09-03
Job specializations:
  • Engineering
    Environmental Engineer, Mechanical Engineer, Engineering Design & Technologists
Job Description & How to Apply Below
Company Description"Empowering Innovation in Nuclear Energy:
Join AECOM’s Vision for a Sustainable Future!"Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be h accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

Job Description Start here. Grow here. “Are you ready to join a team of talented engineers and shape the future of the Nuclear Industry?” Due to the continued growth and expansion of our Nuclear Team, we are looking enhance our technical capabilities and are seeking to recruit a Principal Mechanical Engineer.

We are looking for individuals who can apply their skills independently and as part of a team to deliver projects to the benefit of our Clients. Inherently the projects are multi-disciplinary and may be at any stage in the project life cycle. Our projects range from client consultancy support to complete turn-key  addition to Mechanical Engineering duties, you will be required to both manage junior level team members and project report on their packages of work.

Additional responsibilities may include the client interface, assistance in the preparation of bids and proposals and then managing the delivery of projects in accordance with AECOM’s quality, safety and environmental procedures.

This is an exciting time for the Nuclear Team with an interesting and expanding pipeline of both international and UK based projects.

Here’s what you’ll do:

Presently involved in a position with a substantial emphasis on design activities.

Provide technical leadership and guidance on mechanical engineering projects, ensuring high-quality, innovative, and compliant solutions.

Lead and mentor a team of engineers and technicians, fostering a collaborative and high-performance work environment.

Successfully deliver projects and support other professional engineers in defining, executing, and completing engineering work packages.

Come grow with us.

Become part of our dynamic nuclear team, which boasts a team of leading and innovating industry experts. Collaborate with top-tier civil, mechanical, electrical, and process engineers to deliver a variety of captivating projects, from small initiatives to large-scale ventures, all the way from concept to completion.  At AECOM, you’ll thrive in an inclusive and forward-thinking environment where your contributions are valued.

And let's not forget about the perks 'll enjoy a range of core and personalised benefits designed to support your future and well-being, customised to fit your lifestyle. Take advantage of career development opportunities, our flexible hybrid working model to ensure a work-life balance that suits your lifestyle, technical practice networks, AECOM University, and volunteering days.

Why Join Us:

Be part of a dynamic team that tackles challenging and impactful nuclear projects.

Work alongside industry-leading professionals and thought leaders.

Engage in a collaborative and inclusive work environment.

Access to continuous learning and development opportunities.

Competitive salary and comprehensive benefits package.

Enjoy the flexibility to work in a way that fits your lifestyle while supporting a healthy work–life balance.

Qualifications Ready to push the limits of what’s possible?

Here’s what we’re looking for:

The successful Principal Mechanical Engineer will have/be:

Hold a qualification in Mechanical Engineering, preferably to Degree level with…
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