Principal Project Manager – Auxiliary Boiler Building Lead

Assystem GmbH; Bristol; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid working

Flexible hours

Pension scheme

Leave 25 days

Professional fees reimbursed

Referral program

Sick pay

Income protection

Death-in-service

Gym access

Support line

Job summary

Assystem is seeking a Principal Project Manager (Mechanical bias) for a major nuclear power project in Bristol. The role oversees the design of a building housing an auxiliary boiler system that provides steam to the main turbines of two reactors.

You will coordinate engineering delivery, engage stakeholders, and manage technical specifications and design reviews, ensuring safety and UK context requirements across multi-partner streams.

Qualifications

• Degree qualified in Mechanical Engineering.
• Experience in design management on large multi-discipline infrastructure projects.
• Strong boiler/steam generation or thermal process knowledge.
• Excellent knowledge of UK building standards and procedures.
• Fluent in English with strong communication skills.

Responsibilities

• Oversee the design of a building for auxiliary boiler systems delivering steam to turbines.
• Lead engagement with internal/external stakeholders and manage scope of works.
• Coordinate contract partners’ technical deliverables and design reviews.
• Ensure safety, UK context requirements, and schedule alignment across streams.
• Provide technical management and risk mitigation for the project.

Job description

# Principal Project Manager – Auxiliary Boiler Building Lead* Nuclear* Permanent / Project Management* Bristol* United Kingdom* 09/07/26* On site* ShareI apply##️ **About Assystem** At Assystem, our mission is to accelerate the energy transition worldwide. Our 8,000 Switchers blend historical engineering expertise with cutting-edge digital technologies to drive this change. Join us in revolutionizing the energy sector and making a significant global impact. **Why Join the Community of Switchers?** Be part of one of the top three largest independent nuclear engineering companies globally. At Assystem, you’ll contribute to groundbreaking projects that push the boundaries of innovation and engineering excellence. Join a community committed to driving forward the future of energy.## Job DescriptionWorking on a major nuclear power plant project, the Principal Project Manager will be a mechancial engineering biased candidate responsible for overseeing the design of a building that houses an auxiliary boiler system, which provides steam to the main turbines of two reactors of the power plant.The Principal Project Manager shall act as Responsible Designer for this contract responsible for:* Supporting the development of engineering delivery strategies;* Ensuring effective engagement with internal and external stakeholders,* Managing the authoring of Scope of Works documentation for Contract Partner(s),* Managing the preparation and development of the Technical Specifications for the design studies,* Coordinating the technical assessment of contracts prior to signature of contract,* Providing technical management of the Contract(s), including being the primary point of contact for the civil programme Project Managers and Mechanical, Electrical and Heating and Ventilation (MEH) programme Project Managers.* Coordinate engineering design activities performed by the different Contract Partners in parallel work streams,* Providing technical support and information to the Contract Partner(s) where required,* Managing the surveillance of the Contract Partner(s) detailed design work, in conjunction with technical management, in accordance with project processes.* Ensuring consistency of Contract Partner(s) deliverables with the contract technical specifications and ensuring Safety and UK Context requirements are taken into account in design activities* Ensuring effective configuration control process are in place and are implemented,* Leading the resolution of transverse (multi-programme) engineering issues or risks;* Ensuring that the Contract Partner(s) schedules and milestones are consistent with global schedule.* Ensuring that the Contract Partner(s) List of Deliverables (LoD) are consistent with the agreed schedule(s) and to ensure the Contract Partner is delivering design output in accordance with the agreed schedule and the LoD.* Agree and accept the Contract Partner Design Schedule* Provide and coordinate engineering design gateway requirements and reviews,* Coordinate Constructability Reviews prior to the Readiness Review and formal transfer to the Joint Delivery Office (JDO) team,* Manage the coordinate and consolidate comments provided by all the Stakeholders during the deliverables review process,* Facilitate optimisation of the design via modifications, trends and changes from feedback across the project,* Lead discussions with the Contract Partner, providing support to the NNB Project Manager with early warning and compensation events, reviewing project change requests and provide support to the commercial lead for cost and schedule impact assessment and negotiation,* Ensure perceived risks and trends are recorded and appropriately managed,* Ensure effective tracking, mitigation and closure of open points,## My profile**Essential:*** Degree qualified or equivalent in Mechanical Engineering discipline.* Experience in design management and coordination on large multi-discipline infrastructure projects.* Strong engineering experience with boilers, steam generation facilities, or thermal process* Strong technical knowledge of building design and construction* Excellent knowledge of engineering procedures especially RIBA plan of work 2020, or equivalent.* Experienced in buildings standards and engineering procedures in the UK.* Accuracy, tenacity, diplomacy, results-oriented, leadership.* Acknowledged organisational skills including the ability to delegate.* Ability to work independently and be proactive.* Ability to work under pressure and tight deadlines.* Excellent communication/interpersonal skills.* Fluent in English* Strong IT skills and proficiency in engineering software packages.**Desirable:*** Chartered Engineer* French language skils* Experience in nuclear industry appreciated. Awareness of the nuclear safety related constraints. Join us at Assystem and be part of a global team delivering some of the most exciting and complex engineering projects in the world. This is your chance to shape the UK’s energy future while developing your expertise in a unique environment.*Benefits include:* Hybrid Working Opportunity Flexible working hours Pension scheme (8% company contribution / 4% personal contribution) 25 days’ paid annual leave + bank holidays + option to buy or sell days Professional fees reimbursed Employee referral scheme Competitive Sick Pay – Support when you need it Income Protection & 3x Salary Death-in-Service Cover Free Digital Gym Access – Expert-led fitness classes 24/7 Employee Support Line – Mental health, financial & legal help**NOTICE TO CANDIDATES ON RECRUITMENT FRAUD – We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.**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 !. Bring your unique contributions and help us shape the future.