Senior Building Services Engineer (Mechanical)

Assystem; Bristol; Hybrid; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Hybrid working model

25 days annual leave + bank holidays

Company pension contributions

Healthcare benefits

Job summary

Assystem in Bristol is seeking a Mechanical Building Services Engineer to join the Nuclear New Build (NNB) team supporting the Hinkley Point project. You will oversee MEP designs, coordinate with external consultants and contractors, and ensure alignment with NNB requirements through design and commissioning stages.

The role requires an engineering degree and experience in design management within regulated industries, with strong communication and leadership skills.

Qualifications

• Experience in project coordination within complex design environments.
• Strong design management skills across multi-discipline teams.
• Excellent communication and leadership abilities in regulated industries.
• Knowledge of building regulations and compliance requirements.
• Desirable familiarity with data centres and critical infrastructure.

Responsibilities

• Support specification and design of new buildings and MEP systems for nuclear projects.
• Coordinate technical interfaces between consultants, contractors and internal teams.
• Assist with design reviews, technical assessments and change management.
• Ensure QA processes are applied to design activities and documentation.
• Support commissioning activities and coordination with NNB commissioning teams.

Skills

Project coordination

Design management

Team leadership

Stakeholder liaison

Communication skills

Attention to detail

Education

Mechanical or Electrical Engineering degree

Job description

NuclearPermanent /BristolUnited Kingdom15/10/26On siteAbout Assystem ️ About AssystemAt 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 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 DescriptionBusiness Unit Overview:The Nuclear New Build (NNB) project team is leading an ambitious programme to build 2 European Pressurised Water Reactors (EPRs) at Hinkley Point in Somerset.As a Mechanical Building Services Engineer, you will be integrated in the Ancillary Works Team, which is responsible for managing the design of all permanent ancillary buildings and you will oversee the MEP designs by both external consultants and contractors to ensure they meet NNB’s requirements.The buildings are in varying states of maturity; ranging from concept to in construction. The main focus will be buildings whicha are part way thorugh MEP installation, and four of which are in advanced stages of design.This team is also responsible for delivering the full design of these buildings, including the civil and structural design, mechanical systems and electrical services within these buildings, together with coordinating other systems which may be present. The team is composed of building lead/technical specialists, specialized in technical core discipline such as architectural, civil/structure, nuclear safety, mechanical and electrical design.Key Responsibilities will be:Supporting the specification for new buildings:Supporting the preparation technical specifications for the consultants and contractors developing the design of the building.Contributing to the bidders’ technical assessment.Liaising with stakeholders involved in the specification, procurement, design, construction, use, maintenance and decommissioning of the building services.Supporting the design of Building Services:Surveillance of subcontracted design activities with the support of external consultants when required.Supporting design reviews as part of the staged delivery.Analysing and resolve any technical design issues presented by consultants and contractors, challenge their proposals.Supporting the management of technical interfaces with the team.Supporting the management of design changes and non-conformances occurring during the design.Supporting construction, installation and commissioning of building services:Supporting the assessment of changes proposed during constructionEngage with NNB Commissioning Teams and understanding NNB requirements to ensure commissioning proposals from the Contractor are suitableGeneral requirements:Applying QA processes, procedures and tools to manage the design activities (NNB arrangements, interface specifications with the Responsible Designer)Raising alerts to the building leads/building services lead where necessary.Providing expert support to the project as a smart customer through effective engagement with Procurement, Design Authority, Engineering, MEH and Commissioning.Commissiong Requirements:Being the Point of Contact for the team for NNB Commissioning-related topics. Specifically, coordinating the Team’s responses to the NNB Commissioning sequence of workMy profileSkills and Qualifications:Mechanical or Electrical Engineering degreeExperience in project co-ordination, with experience of design management.Experience in Nuclear Industry or other highly regulated industries.Knowledge of building regulationsKnowledge of data centres is desirable.Accuracy, tenacity, diplomacy, results-oriented, leadershipAcknowledged organisational skills and attention to detailAbility to work independently and be proactive.Excellent communication/interpersonal skills/team working essential.Discretion, ability to maintain confidentiality when dealing with sensitive informationFluent in English; French is desirableWhy Apply?Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation.Your Benefits PackageHybrid Working – Flexibility to work from home and the office️ 25 Days Annual Leave + Bank HolidaysBuy & Sell Holiday – Make your time off work for you8% Company Pension Contributions️ Income Protection & 3x Salary Death-in-Service CoverCompetitive Sick Pay – Support when you need itHealthcare Cash Plan – Claim back on dental, optical & moreFree Digital Gym Access – Expert-led fitness classesExclusive Discounts – Restaurants, days out & top brands24/7 Employee Support Line – Mental health, financial & legal helpCycle to Work Scheme – Save money & go greenFree Flu Jabs & Eye Test VouchersPaid Professional Membership Fees Volunteer Days – Make a difference on company timeWe 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.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.