Assystem is an international company with one mission: accelerate the energy transition around the world.
Every day, our 8,000 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 second in the world for nuclear engineering.
To ensure a viable, efficient, and reliable energy future for all.
As a Key Account Manager within our Nuclear Business Unit, you will play a strategic role in developing and managing customer accounts within the Fusion and Modular Nuclear sector.
You will focus on building trusted relationships with leading stakeholders, helping position Assystem as a key delivery partner for these transformative technologies.
Reporting to our Business Unit Director New Build, you will be responsible for leading key account plans and supporting growth strategy in collaboration with the wider Business Unit team.
In this role, you will:
Manage relationships with existing and new strategic clients
Ensure sales order targets are achieved
Update and champion CRM records to reflect current opportunities
Provide accurate forecasting and bid tracking
Maintain and deliver key account development plans
Drive the capture of strategic, high-value opportunities
Support internal strategic planning across the BU
Identify and develop new customer opportunities
Represent Assystem at senior client engagements and industry events
Ideally degree qualified (in engineering, science, business or a related field)
Minimum 5 years’ experience in account management or business development
Proven track record of success with strategic clients and complex accounts
Strong experience in CRM systems and forecasting tools
Excellent communication, stakeholder engagement and negotiation skills
Strategic and analytical mindset
Ability to work autonomously and collaboratively within a matrix organisation.
Preferred:
Experience in the nuclear, energy, infrastructure, or oil & gas sectors
Familiarity with gated bid and review processes
Understanding of fusion and modular reactor market landscape
British nationality is preferred (due to security clearance requirements)
Exposure to organisations such as Atkins, Cavendish Nuclear, Nuvia, Aegis, Tetra Tech, or Wood Group
Join Assystem to work on innovative energy projects, including SMR, AMR, fusion, and modular nuclear. Collaborate with top industry professionals and contribute to a sustainable future. Your future team is dedicated to excellence and pioneering solutions in the nuclear sector. Apply now to be part of our mission!
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.
