Accounts Payable Team Leader
Assystem
team leadership
payment runs
invoice processing
ledger maintenance
intercompany invoicing
expense verification
As an Accounts Payable Team Leader, you’ll lead a small finance team ensuring accurate, efficient, and timely processing of all supplier, contractor, and staff payments. You’ll support month-end routines and play a key role in maintaining financial accuracy across our UK operations.
⚡️ Lead and mentor a small team of Accounts Assistants⚡️ Manage weekly contractor and expense payment runs⚡️ Oversee monthly supplier payment runs and reconciliations⚡️ Process sub-contractor timesheets, invoices, and purchase orders⚡️ Maintain supplier ledgers, direct debits, and lease car accounts⚡️ Manage intercompany invoicing and project accruals⚡️ Verify staff expense claims in line with company policy⚡️ Support the wider finance team with month-end and ad-hoc projects
excel
leadership
erp
sap
oracle
accounts payable
🛠 Strong Excel user 🛠 Strong attention to detail and organisational skills🛠 Proven ability to manage and prioritise multiple tasks🛠 Experience leading or mentoring small teams🛠 Ability to identify and resolve issues proactively
✔️ Familiarity with staff expenses and HMRC guidelines✔️ Experience within engineering or project-based organisations✔️ Knowledge of ERP or finance systems (e.g., SAP, Oracle)✔️ Analytical mindset with a continuous improvement focus
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 in the top three in the world for nuclear engineering. We aim to ensure a viable, efficient, and reliable energy future for all.
🛠 Minimum 2-3 years experience in a Finance or Accounts Payable role
Benefits- Employee referral scheme
- Flexible working
- 25 days’ paid annual leave + bank holidays + option to buy or sell days
- Pension scheme (8% company contribution / 4% personal contribution)
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1966 founding
Year of establishment
The company was established in 1966, marking its inception as a global engineering powerhouse.
12 countries
Global presence
Operates across 12 countries, indicating significant international reach.
Revenue €611M
Annual revenue
Generates around €611 million annually, driven by strategic acquisitions.
- Leads EPR nuclear projects across locations.Opens external site
- Shapes energy transition through various sectors.
- Champions digital innovation for optimal performance.
- Operates across nuclear, renewables, transport, and hydrogen sectors.
- Engages in advanced fusion research and development.
- Daring (Making suggestions / Taking initiative)
- Being customer‑oriented (Listening / Commitment / Collaboration)
- Being a team player (Collaboration / Responsibility / Sharing one’s knowledge)
- Being results‑oriented (Self‑sufficiency / Dedication / Perseverance)
- Agility (Adaptability / Curiosity / Responsiveness)
- Enthusiasm (Eagerness / Drive / Sociability)
- Endurance (Valour / Tenacity / Involvement / Resilience)
- Autonomy, empowerment, quality and trust
42% Emissions Reduction
Scopes 1 & 2 Target
Aims to reduce emissions by 42% by 2030 compared to 2022 baseline.
51.6% Scope 3 Reduction
Per Full-Time Equivalent
Committed to reducing Scope 3 emissions by 51.6% per full-time employee by 2030.
Triple Nuclear Capacity
Global Expansion Goal
Supports tripling global nuclear energy capacity by 2050 as part of the Net Zero Nuclear pledge.
Top 15% Rating
Ecovadis Sustainability
Achieved an Ecovadis Silver rating, placing it in the top 15% of assessed companies.
- Targets validated by the Science Based Targets initiative (SBTi) as Paris-aligned
- Signatory of the World Nuclear Association’s Net Zero Nuclear pledge to triple global nuclear capacity by 2050
- Developing low-carbon electricity solutions (nuclear and renewables, grid renovation, green hydrogen)
- Switch & Act for Climate programme to raise climate awareness and drive energy transition actions
30%
Women Among New Hires
Recognizes the proportion of women among new hires in the organization.
60%
Internal Promotions
Percentage of high-responsibility positions filled through internal promotions.
70%
Local Managers Promoted
Percentage of local managers promoted from within the organization.
- Recruitment based solely on skills and daring; equal treatment for all candidates
- Assystem supports gender-balance in STEM via partnerships with women-focused engineering events (e.g., APPG Women Leading STEM)
