At Assystem, our mission is to accelerate the energy transition worldwide. 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. Join us in revolutionizing the energy sector and making a significant global impact.
Job Description
* Support the delivery of mechanical building services designs across critical ancillary nuclear facilities.
* Span design review, technical coordination and onsite engineering support during installation phases.
* Review mechanical building services execution designs against NNB technical specifications.
* Support development of scopes for early‑stage mechanical design packages.
* Coordinate closely with multidisciplinary teams and respective Contract Engineering Leads.
* Challenge supplier proposals where designs diverge from agreed project requirements.
* Maintain focus on health, safety and quality management compliance standards.
* Ensure Lifetime Quality Records documentation remains complete and accurately maintained.
* Support technical resolution of onsite queries, changes and non‑conformance reports.
* Manage interfaces with stakeholders, contractors, consultants and wider project delivery teams.
* Support reporting, escalation activities and risk mitigation meetings when required.
* Assist development of final operation and maintenance manuals for completed facilities.
Qualifications
* Degree qualified in Mechanical Engineering or related engineering discipline.
* Strong mechanical building services engineering experience within complex building projects.
* Experience delivering designs from concept through commissioning and handover stages.
* Knowledge of UK building regulations, CIBSE standards and engineering procedures.
* Experience managing and coordinating multidisciplinary building design activities.
* Strong understanding of RIBA Plan of Work and BSRIA guidance.
* Excellent communication, stakeholder engagement and collaborative teamworking abilities.
* Ability to work proactively, independently and manage competing project priorities.
* Experience applying QA processes, configuration control and quality management principles.
* Fluent English communication skills; French language capability would be advantageous.
Benefits
* Hybrid Working – Flexibility to work from home and the office.
* Buy & Sell Holiday – Make your time off work for you.
* 8% Company Pension Contributions.
* Competitive Sick Pay – Support when you need it.
* Healthcare Cash Plan – Claim back on dental, optical & more.
* Free Digital Gym Access – Expert‑led fitness classes.
* Exclusive Discounts – Restaurants, days out & top brands.
* 24/7 Employee Support Line – Mental health, financial & legal help.
* Volunteer Days – Make a difference on company time.
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.
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