Accounting Operations

Nomios is the second largest provider of cybersecurity services in Europe. Our customers are typically large companies and governmental organizations. We are present in multiple European countries, including FR, NL, UK, IT, GER, PL and BEL and our 2025 revenues are over 550 M€.

We are backed by a strong, tech-focused Private Equity fund, Keensight Capital, and are pursuing an ambitious growth plan, combining the strengthening of our core business and the integration of new acquisitions.

In support of this plan, we are currently seeking an Accounting Operations professional within our Finance Department to join our team. This is a great opportunity for a high-potential, energetic and committed individual who wants to develop their career within a company that anticipates continued growth over the next several years.

Your Role

As an Accounting Operations professional, you will play a key role in supporting the day-to-day finance activities across the Group. You will be responsible for ensuring financial transactions are processed accurately, efficiently, and in compliance with internal procedures and controls. The role offers a broad range of responsibilities across Accounts Payable, Accounts Receivable, Banking, General Ledger, Compliance, and Finance Administration. Key responsibilities include:

1-Accounts Payable

• Process supplier invoices in the relevant finance systems.

• Check invoices for correct supplier details, VAT treatment, purchase order references, project numbers, coding, amounts, currencies, and approvals.

• Follow up on missing approvals, missing documentation, or incorrect invoice details.

• Support the preparation of supplier payment runs.

• Handle supplier queries and reconcile supplier statements where required.

• Send remittance advices to suppliers following payment processing.

• Process employee expenses through SRXP or any other approved expense management process.

• Perform other accounts payable related activities as reasonably required.

2-Accounts Receivable Support

• Support the preparation and review of customer invoices where required.

• Assist with the follow-up of overdue customer balances.

• Support the resolution of invoice disputes and credit note requests.

• Ensure corrections are properly documented and approved.

• Perform other accounts receivable related activities as reasonably required.

3-Bank Processing and Reconciliations

• Book bank transactions in the relevant finance systems.

• Match customer receipts and supplier payments against open invoices.

• Investigate and clear unidentified bank transactions.

• Support the preparation and completion of bank reconciliations.

• Maintain the suspense bank account and ensure it reconciles with no balance or only fully explained balances.

• Perform other bank and cash administration related activities as reasonably required.

4-General Ledger and Month-End Support

• Prepare and post journals as instructed and approved.

• Support accruals, prepayments, reclassifications, and accounting corrections.

• Prepare assigned balance sheet reconciliations.

• Support the monthly closing process and ensure assigned tasks are completed within agreed deadlines.

• Maintain proper supporting documentation for audit trail purposes.

• Perform other general ledger and month-end close related activities as reasonably required.

5-VAT and Compliance Support

• Check VAT coding on purchase and sales invoices.

• Support VAT reconciliations and documentation requests.

• Ensure transactions are processed in line with internal procedures and approval workflows.

• Support audit requests and internal control activities where required.

• Perform other VAT, compliance, and control related activities as reasonably required.

6-Master Data Support

• Create and update supplier and customer master data following the appropriate approval process.

• Verify supplier bank details through the SIS ID portal.

• Review VAT numbers, bank details, payment terms, and contact information for completeness and accuracy.

• Escalate suspicious or incomplete master data change requests.

• Support master data clean-up and maintenance activities where required.

• Perform other master data related activities as reasonably required.

7-Finance and Administrative Support

• Support the Financial Controllers, Accounting Operations Lead, CFO, and other appointed stakeholders with ad-hoc finance activities.

• Assist with reporting requests, process improvement initiatives, documentation updates, and internal control activities.

• Perform other duties reasonably connected to the finance function.

We hire smart, high-energy people! You must have a can-do attitude and be ready to

roll your sleeves up and get stuck in to deliver great results. You will be reliable and

methodical in your approach. You will build good working relationships with key

stakeholders. You will be a team player with an excellent sense of humour.

Additional requirements include:

• Organized, accurate and professional with strong attention to detail.

• Bachelor’s degree in Finance, Accounting, Business Administration, or a related field.

• 2–5 years of experience in an Accounting Operations, Accounts Payable, Accounts Receivable, or Finance Administration role.

• Good understanding of accounting principles and finance processes.

• Experience working with ERP systems and finance applications.

• Experience with expense management systems such as SRXP is an advantage.

• Knowledge of VAT processing and reconciliations.

• Excellent written and verbal communication skills.

• Ability to work independently, manage multiple priorities, and meet deadlines.

• Strong analytical and problem-solving skills.

• Proficient in Microsoft Excel and other Microsoft Office applications.

• Organisation Structure

The Accounting Operations professional reports to the Accounting Operations Lead and will work closely with the Financial Controllers, Group Finance team, CFO, and other key stakeholders across the business.