Working Student Business Controlling – Solar & Batteries (f/m/d)

Vattenfall; Belgique; On-site; EUR 7,800 - 13,000; Part time

Benefits offered by this job

Flexible working hours

Hands-on experience in finance

Energy transition exposure

International environment

Career development

Job summary

Vattenfall is looking for a Working Student in our Business Control team focusing on Solar & Batteries. You will support financial processes for renewable energy projects and gain hands-on experience in finance within a purpose-driven company.

Based in Germany, you will assist with invoicing, monthly closings, and reporting, while collaborating with the Controlling Management Team. Fluency in English and German plus strong Excel skills are expected; SAP knowledge is a plus.

Qualifications

• Enrolled in Business Administration, Economics, or a related field.
• Master’s student (at the beginning of the program).
• Living in Hamburg or Berlin.
• Solid Excel skills; first experience with SAP is a plus.
• Communicate well in English (written and spoken at least C1) and German language skills (A2–B1) is a plus.
• Open-minded, collaborative, and eager to learn in an international environment.

Responsibilities

• Support controlling team in managing financial processes for renewable energy projects.
• Contribute to monthly closing activities and financial reporting.
• Assist with procurement processes, including invoice workflows.
• Assist billing and payment processes, including manual transactions.
• Work closely with the Controlling Management Team and support ongoing projects.

Skills

Excel

SAP

English (C1)

German (A2–B1)

Communication

Teamwork

Structured working

Education

Master's student

Enrolled in Business Administration/Economics

Tools

SAP

Excel

Job description

Vattenfall is one of Europe’s largest producers and retailers of electricity and heat. With around 20,000 employees, we are committed to enabling fossil‑free living within one generation. Our work connects technology,natureand people — and every role contributes to powering a more sustainable future.

Within our Business AreaWind, we bring together expertiseacross wind, solar and battery storage to accelerate the energy transition. By combining these technologies, we ensure a reliable and sustainable energy system for the future. Together, we develop and operate renewable energy solutions that make a real difference.

Do you want to actively shape the energy transition while gaining hands‑on experience in financial controlling?
As a Working Student in our Business Control team for Solar & Batteries, you will get a real insight into how financial processes support renewable energy projects — and how your work contributes to a more sustainable future. At Vattenfall, we believe:there is a way.

Your role

In this position, you support the controlling team in managing financial processes for renewable energy projects. You contribute to daily operations while gaining valuable insights into how financial decisions shape the energy transition.

Yourmaintasks

• Support procurement processes, especially invoice workflows

• Assist with billing and payment processes, including manual transactions

• Contribute to monthly closing activities and financial reporting

• Help keep daily controlling operations running smoothly

• Work closely with the Controlling Management Team and support ongoing projects

Your profile

You are currently studying in a relevant field and want to gain practical experience in finance within a purpose-driven industry. You enjoy working together with others and bring a careful and structured way of working.

• Enrolled in Business Administration, Economics, or a related field

• Master’s student (at the beginning of the program)

• Living in Hamburg or Berlin

• Spolid Excel skills; first experience with SAP is a plus

• Communicate well in English (written and spoken at least C1) and German language skills (A2–B1) is a plus

• Open-minded, collaborative, and eager to learn in an international environment

What we offer

• The opportunity to actively contribute to the energy transition early in your career

• Hands‑on experience in business controlling within the renewable energy sector

• Insight into financial processes at a leading European energy company

• A supportive, international environment where people learn from each other

• Flexible working hours that fit your studies

• The chance to grow, develop your skills, and take on meaningful responsibilities

Application deadline: 01.10.2026

For more information about the role, please contact: Sabrina Parsons [e-mail]

At Vattenfall, we believe that diversity strengthens our company. We are committed to creating an inclusive workplace where everyone has equal opportunities, regardless of background, identity or experience.

The security of Vattenfall and its employees is essential. For that reason, a pre‑employment screening will be part of your recruitment process. The screening is based on the role you will fulfill within Vattenfall. The screening will be performed by a third party, DISA.

We look forward to receiving your application!