Senior Mechanical Engineer - Nuclear Area Integration

⚡️💡 About Assystem

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.

🤝 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.

You will coordinate installation sequencing across contracts from manufacturing through to commissioning phases.

You ensure integration of engineering, construction, and commissioning activities to support project milestones.

You work closely with planning teams to optimise delivery sequences and minimise project risks.

🔧 Coordinate installation sequencing across multi-contract project delivery scopes

🔗 Resolve complex interfaces between commissioning, construction, and erection teams

📊 Align planning schedules with commissioning milestones and delivery requirements

⚠️ Identify risks early and implement mitigation strategies for site activities

📅 Ensure dependencies and constraints are managed for smooth project execution

🤝 Collaborate with multidisciplinary teams to drive best-for-project decisions

📈 Support integration of planning data using digital tools and analytics

🧩 Facilitate communication between engineering, procurement, and construction teams

🔍 Analyse project data to inform decision-making and optimise performance

Required Skills and Qualifications

🎓 Degree in engineering or construction-related discipline or equivalent experience

🛠️ Extensive experience delivering large, complex infrastructure projects

⚛️ Understanding of nuclear safety culture and regulated environments

📊 Strong knowledge of planning, sequencing, and integration methodologies

📑 Familiarity with NEC and FIDIC contract frameworks

🧠 Excellent analytical and problem-solving capabilities

📢 Strong communication skills across technical and non-technical stakeholders

🤝 Proven ability to collaborate across multidisciplinary project teams

💻 Experience with tools like Navisworks, Synchro, or Primavera P6

📈 Understanding of risk management and project change control processes

🌟 Why 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 Package

🏠 Hybrid Working – Flexibility to work from home and the office

🏖️ 25 Days Annual Leave + Bank Holidays

🔄 Buy & Sell Holiday – Make your time off work for you

💰 8% Company Pension Contributions

🛡️ Income Protection & 3x Salary Death-in-Service Cover

🤒 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

🚴 Cycle to Work Scheme – Save money & go green

💉 Free Flu Jabs & Eye Test Vouchers

🧾 Paid Professional Membership Fees

❤️ Volunteer Days – Make a difference on company time

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.