Assystem is an international company with one mission: accelerate the energy transition around the world.
Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.
We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.
Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked third in the world for nuclear engineering.
To ensure a viable, efficient, and reliable energy future for all.
Join our Team:
We are looking for a Senior Project Manager to fill a vital role in support of a key Defence Nuclear Sector Client, able to commit to this long term infrastructure project management role.
Your Mission:
This role requires a strong focus on leadership, collaboration, and continuous improvement to ensure the successful delivery of the client portfolio.
Skills to be successful:
This role demands a strong focus on stakeholder engagement, project management expertise, and commercial acumen. Key attributes include:
Why Join the Switchers Community?
ð¹A dynamic career management policy to enable our employees to progress through our five business lines: operations, project, technical, sales and support functions
ð¹Provide opportunities to work on exciting, global projects
ð¹Access to an employee assistance programme with free mindfulness, health, wellbeing resources and a confidential support line available 24/7 via phone or text
ð¹Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle to work scheme, free flu jabs
ð¹Enhanced sick pay
Permanent Staff or Umbrella Contract position
Sole UK National, SC required to start
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 peopleâs ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change.
8,000 switchers, spread in 13 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport.
We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures.
59 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SNCF...
Assystem is ranked in the Top 3 companies in the nuclear energy sector.