(Junior) Fullstack Developer

Our mission is to provide innovative services critical to society, unlocking a cleaner, better and more profitable future. Working towards this goal, Volue has become a leading technology supplier and enabler of the green transition, helping energy companies simplify and optimize everyday operations.

We are now looking for a Fullstack Developer who can help us continuously improve Volue’s ability to provide value to customers in line with the Volue mission.

What you will be doing to make a difference:

As a Fullstack Developer on the BoFiT team, you will:

• Work in an agile DevOps team on our BoFiT optimisation solution
• Write clean, testable and maintainable code, along with the corresponding technical documentation
• Contribute to the maintenance and evolution of a mature optimisation solution
• Extend existing functionality and support the team in evolving the architecture
• Participate in code reviews and contribute to the continuous improvement of development processes
• Collaborate with software engineers, architects and domain experts as part of an agile team

What you need to succeed:

Required:

• Bachelor's or Master's degree in Software Development, Computer Science, Engineering, or a comparable qualification
• Around 1–2 years of experience with object-oriented programming
• Knowledge of C++ and willingness to work across multiple languages (Java, C#)
• Experience with at least one common IDE (e.g. Eclipse, Visual Studio, IntelliJ)
• Familiarity with version control systems (Git, Bitbucket or GitHub)
• Basic understanding of SQL databases (e.g. PostgreSQL, Oracle)
• Analytical thinking and strong problem-solving skills
• A proactive, hands‑on mindset with a strong sense of quality
• Good communication skills in English (written and spoken)
• Ability to collaborate across teams, locations and cultures
• A customer‑oriented mindset

Nice to have:

• Experience with AI‑assisted development tools (e.g. Claude, GitHub Copilot) and prompt engineering for code generation, debugging and documentation
• Experience with Java front‑end development
• Knowledge of scripting languages (e.g. Python)
• Understanding of API design and communication patterns (REST, message queues)
• Experience with CI/CD pipelines (e.g. Jenkins, GitHub Actions)
• Web front‑end development skills (React, TypeScript, JavaScript, HTML, CSS)
• Persistence and curiosity when working with complex systems and large, mature codebases
• German language skills

Don’t meet every single requirement?
We still encourage you to apply. We value diverse experiences and perspectives and would love to hear from you.

Reasons to join Volue team and what we offer:

• Large degree of influence in shaping & developing the role further;
• Great colleagues in one of Europe’s most exciting green tech companies with an innovative and international work environment;
• Competitive salaries & benefits;
• Flexible working hours and hybrid work;
• Attractive referral program.

We are looking to hire for Volue office in Aachen, Germany or Gdansk Poland but will be ready to consider other locations for the right candidate.

In Volue, we cherish each employee’s competence, ideas and personality. Let your skills and talent be a part of our team – and let us leave our mark on the world together!

Company Culture

In Volue, we believe that in order to be a successful company, we need to bring everyone to the table.

We look at diversity as a competitive advantage. A diverse workforce enables better decision‑making and creates more value. By inclusion, we refer to the sense of belonging and being part of a community at work. We want the people of Volue to feel welcome, valued and not least encouraged to bring their whole, unique selves to work.

Volue is about people. From staff to client, people are at the center of all our operations, and we always strive for a flat structure where everyone feels included, appreciated and recognized for their individual efforts. Or as we call it "ONE Volue". We hire talented individuals, regardless of gender, race, ethnicity, ancestry, age, disability, sexual orientation, gender identity or expression, cultural background or religious beliefs.