Assystem is an international company with one mission: accelerate the energy transition around the world.


Every day, our 6,500 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 second in the world for nuclear engineering.


To ensure a viable, efficient, and reliable energy future for all.


Job Description

The successful Accounts Assistant applicant will be joining the team in our Blackburn office, working on a hybrid basis with 2 days a week in the office as a minimum, with the option of 3 working from home. The successful candidate will be responsible for but not limited to the following key duties:

  • General receipting of purchase orders and accrual receipting
  • Process contractor timesheets and expenses
  • Post contractor invoices
  • Maintain contractor payment remittances
  • Support with preparation of sales invoicing
  • Supporting the contractor payment runs
  • Release sales invoices
  • Post purchase ledger invoices
  • Cover holidays and team absence
  • Support with the checking of staff expenses and monthly expense payment run
  • Dealing with various queries in inboxes (receipt, expense, PL)
  • Weekly reports sent to umbrella companies for hours to invoice

My profile

  • Experience of working in a similar role
  • Excellent administration skills
  • Confident use of Microsoft Office (Predominantly Word and Excel)
  • Data inputting experience
  • Great attention to detail
  • Able to prioritise your own workload, and contractors, to meet weekly deadlines
  • Excellent organisation skills
  • A forward thinker, capable of problem solving when required
  • Ability and willingness to work as part of a team
  • Experience of using Hive will be beneficial along with some experience of handling expenses

Additional information

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.

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