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, liaising 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

Requirements

• Minimum 6 years of experience in Accounts Payable or a related field
• Educational background in financial administration, accounting, finance, or similar
• Proficiency in financial software (Oracle NetSuite is a plus) and OCR tools
• Knowledge of German VAT regulations
• Highly accurate and detail-oriented, with a keen ability to introduce structure and efficiency within a scale-up environment
• Team player who thrives in a flat, collaborative organization
• Proactive and confident in proposing new ideas, with a strong interest in process automation and a continuous desire to learn and improve
• Strong communication skills; proficiency in German and English are required

What's in it for you?

• Competitive salary package
• Annual bonus of up to 11.5% of your salary
• 30 days of annual leave for good work-life balance
• Lunch allowance up to €46.50 through Belonio
• Fully equipped for success with a laptop, mobile phone, and everything you need for a comfortable home office setup
• BahnCard or Deutschlandticket for business travel
• Healthcare, protection and wellbeing coverage with Benefiz
• Sports and wellness benefits via Urban Sports Club
• Enhanced parental leave: an additional two fully paid days for partners
• Volunteer for a good cause and receive a donation credit for every hour contributed, funded by the COFRA Foundation
• Flexible working, including hybrid work and work-from-abroad options
• An engaging team culture filled with events, celebrations and memorable moments
• The legendary Sunrock hoodie, because culture matters too!

Ready to be unstoppable?

At Sunrock, you’ll collaborate with colleagues from diverse backgrounds, representing more than 30 nationalities and contributing to an impressive 88% employee social connection score. We are committed to fostering a workplace where everyone can thrive, feel valued, and contribute in their own unique way. We celebrate diversity and encourage everyone to apply; bringing their full, authentic selves to Sunrock.

Your uniqueness truly matters here, and we look forward to welcoming you to the Sunrock family.