ASSYSTEM
Executive Assistant
Job description
We are seeking an exceptional Executive Assistant to provide strategic and operational support to Director-level leadership within a dynamic and fast-paced organisation.
At Assystem, we support the delivery of complex infrastructure and energy programmes that contribute to the global transition to low carbon energy.
This is a pivotal role suited to a highly capable EA who operates as a trusted partner to senior leaders ๐ค, anticipating needs, enabling effective decision-making, and ensuring priorities are executed seamlessly. This role enables leadership effectiveness by ensuring Directors can focus on delivering complex programmes ๐, strategic priorities, and organisational performance.
๐ Your missions
๐ Provide high-level executive support to Directors, managing complex and evolving priorities
๐๏ธ Oversee strategic diary management, ensuring alignment with business objectives
๐ Prepare high-quality briefings, reports, and presentations for senior meetings
๐ฅ Coordinate leadership meetings, governance activity, track actions arising from leadership meetings and ensure timely follow up
๐ค Act as a professional liaison between Directors, senior stakeholders, and external partners
๐ Manage confidential communications and sensitive information with discretion
๐ Support planning, projects, and cross-functional initiatives as required
โ๏ธ Identify opportunities to improve administrative and operational efficiency and ways of working
๐ฌ Manage and prioritise email and communications on behalf of Directors where appropriate
๐ช Act as a gatekeeper for Directorsโ time, ensuring focus on strategic priorities
๐ค Coordinate leadership events, workshops and offsite meetings where required
โ๏ธ Arrange complex travel itineraries and logistics where required
๐ฌ๐ง Occasional UK travel may be required to support leadership meetings or events
๐
๐ผ Significant experience supporting senior leadership at Director or Executive level
๐ง A proactive, solutions-oriented approach with strong commercial awareness
๐ Exceptional organisational and prioritisation skills
๐ฌ Confident communicator with strong stakeholder management capability
๐ก๏ธ Demonstrated ability to operate with discretion, judgement, and professionalism
โก Highly adaptable, resilient, and comfortable working at pace
๐ป Advanced proficiency in Microsoft Office
๐ Why Join Assystem?
โจ Work on nationally significant, technically complex projects
๐ Strong career development and progression opportunities
๐ค 25 days annual leave (buy and sell leave scheme)
๐ Opportunity to make a real impact in energy, defence and infrastructure
**Security clearance**
This role requires the successful candidate to hold a minimum of a Security Check (SC) clearance without any caveats to that clearance.
Due to the nature of work this role will be delivering and for the protection of certain assets, the successful candidate has to be a UK national or in MoD approved cases a Dual National from a non-ITAR country.
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 peopleโs ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.


