Financial Administrator

About Sunrock

At Sunrock, we believe in a future powered by clean energy. Our mission? Driving the energy transition forward with smart, sustainable solutions. With offices in the Netherlands, Germany, and France, we’re experts in large-scale solar roof installations and innovators in energy management, advanced battery storage, and our own energy trading platform. Our team of bright, entrepreneurial minds works hand-in-hand with clients, partners, and colleagues in full transparency, because openness and trust are part of our mindset and philosophy. That’s how we build long-term partnerships and deliver solutions that make properties future-proof and sustainable, while meeting ambitious ESG goals.

Join us and help shape the next chapter of clean energy!

About the Role (24h-32h):

As a Financial Administrator within Sunrock’s finance department, you will play a crucial role in managing financial transactions and project administration for our solar parks in Germany. You will support the day-to-day financial operations, ensuring accurate processing of invoices, payments, VAT administration, and project-related financial activities. With your strong attention to detail and knowledge of German financial and tax requirements, you will help maintain compliance, support efficient processes, and contribute to the continued growth of Sunrock’s German business. Working in a dynamic and fast-paced environment, you will collaborate closely with both operational and finance colleagues to ensure smooth and reliable financial administration.

Position:

The Financial Administrator is based in Düsseldorf and serves as an important link between the German business and Sunrock’s central Finance organization in the Netherlands. The role reports directly to the Finance Operations lead in the Netherlands and works closely with local business stakeholders and finance colleagues in Germany such as the BU manager, controller, GL accountant and workstudent. As part of the central finance team, you will collaborate on a daily basis with colleagues across Accounting, Controlling, Tax, and Treasury. This unique position combines local ownership and visibility within the German organization with the expertise, support, and development opportunities of an international finance team.

Your responsibilities:

Manage the administration's email inboxes and post mail

Process incoming and outgoing payments and maintain accurate financial records

Process accounts payable invoices, ensuring proper 2-way or 3-way matching

Prepare, issue, and process customer invoices, including self-billing invoices, ensuring accuracy and timely delivery

Verify VAT treatment on invoices in accordance with Local VAT regulations

Monitor outstanding payables, maintain vendor relationships and resolve discrepancies promptly

Monitor outstanding receivables, perform dunning activities, and follow up with customers on overdue balances

Classify expenses accurately by assigning the correct cost center and project code, liasing with project and asset managers as needed

Support monthly and annual financial closings and assist with external audits

Collaborate on process optimization and participate in ad-hoc financial projects

Contribute to standardization and continuous improvement within Finance Operations team

Prepare, maintain and keep work instructions and SOPs up to date