Job Description 🗓️ Wednesday to Friday About The Role 👥 We are looking for a part-time Financial Administrator to further strengthen and professionalise our Finance team. In this role, you will work under our Finance Lead and collaborate closely with our financial administrator, becoming a key part of our effort to bring more of our financial administration in-house.

You will have a broad impact on our day-to-day bookkeeping, financial operations and the continuous improvement of our processes across multiple entities. We’re looking for someone who loves structure, gets energy from improving workflows, and enjoys the variety that comes with working in a fast-growing scale-up.

Your Challenge 🎯 Support and execute daily bookkeeping activities

• Manage accounts payable and accounts receivable
• Prepare and process payments
• Maintain accurate and up-to-date financial records
• Manage supplier invoices, purchase orders and expense claims
• Support cash planning, cash forecasting and bank reconciliations
• Process intercompany transactions
• Assist with month-end and year-end closing activities

Job requirements

What You Bring ⭐

• HBO or bachelor’s degree in Finance, Accounting or Economics
• Proven experience as a financial administrator, finance assistant or similar function
• Experience with bookkeeping and core finance processes such as AP, AR, payments and closing
• Knowledge or experience with Dutch VAT and ICP declarations
• Strong attention to detail and a structured way of working
• Ability to work independently within a small team environment

Nice to have 🧩

• Experience with Odoo and/or NMBRS
• Administrative experience with foreign entities (e.g. UK Ltd or US Inc)
• Proficiency in Dutch

What We Offer 🚀

• Participation in our Stock Appreciation Rights (SAR) scheme, enabling you to benefit from future company growth.
• Flexible working: hybrid setup and the ability to work abroad for one month each year.
• Purpose-driven work with cutting-edge technology that supports sustainability and energy efficiency across global industry.
• A collaborative, empowering culture with plenty of room for ownership—and regular team events, from game nights to wine tastings.
• Modern, sustainable office just three minutes from Leiden Central, with fresh lunches and healthy snacks every day.
• Pension funded fully by the employer, 8% holiday allowance, monthly connectivity allowance, and an OV business travel card.

Interested? If you’re excited about helping us build a world-class Finance function and enjoy working in a dynamic, fast-growing environment, we’d love to hear from you.

Join us and help shape the future of our operations — one workflow at a time.