Mechanical Planning Engineer

⚡️ 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 integrated Mechanical Planning activities across Nuclear Island, Conventional Island and Balance of Plant scopes.

The role supports complex piping, HVAC and M&E installation, commissioning and system handover activities within regulated nuclear environments.

️Develop integrated Mechanical construction and commissioning schedules using Primavera P6

Coordinate Mechanical installation sequencing with multidisciplinary construction and engineering teams

️Plan Mechanical installation, pressure testing and commissioning integration activities

Monitor project performance, schedule risks and critical path mitigation opportunities

Produce KPI dashboards, variance analysis and detailed progress reporting documentation

Interface with subcontractors, commissioning teams and client project stakeholders

️Ensure compliance with nuclear quality assurance and governance requirements

⚙️Integrate procurement, fabrication and installation activities into project schedules

Support mechanical completion, testing and commissioning turnover planning activities

Support workface planning and short-term construction look-ahead programme development

Degree, HNC/HND or equivalent engineering or construction management qualification

Proven Planning Engineer experience on major installation projects

Strong understanding of industrial Piping, HVAC or M&E systems and construction methodologies

️Advanced practical experience using Oracle Primavera P6 planning software

Experience developing fully logic-linked construction and commissioning schedules

Background within nuclear, energy, oil and gas or regulated industries

Strong understanding of commissioning, turnover and mechanical completion processes

Working knowledge of NEC contracts and project controls methodologies

Strong analytical capability with reporting and critical path analysis experience

Experience using Microsoft Excel, Power BI or Synchro advantageous

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.