Software Engineer (Java/Kotlin/Scala)

Confidential

Rotterdam, Zuid-Holland, Netherlands permanent

Posted: January 30, 2026

Required Skills

Job Description

Are you a self-managing software engineer who is passionate about building custom software systems? Do you thrive in a collaborative team environment and enjoy tackling challenging projects? We're looking for talented software engineers to join our growing team in Rotterdam!

About us:

We are a dynamic company made of small, self-managing teams of engineers. With a flat hierarchy where even the CEO codes, everyone contributes directly to technical work. We work on exciting projects, sometimes embedded within customer locations and also from our own offices.

What you'll build:

You will play a key role in developing custom software systems with a focus on systems integration, machine learning, big data initiatives and robust backend solutions. Our technical core revolves around the JVM platform, utilising Java, Kotlin and Scala. Our diverse project portfolio spans various sectors, including finance, energy, automotive, insurance and telecommunications.

How we stay on top of things:

In a rapidly evolving technological landscape, staying ahead is crucial. We continuously learn through weekly internal technical talks, our annual internal conference, and insights brought back by our international conference speakers.

Our commitment: the selection of the optimal tool for each customer's specific needs, with no constraints imposed by rigid technological preferences.

Our commitment to the community:

We are deeply involved in the tech community. Our team includes international conference speakers, published authors and active open-source contributors. They would be delighted to show you the ropes and help you become a contributor yourself.

Beyond individual achievements, Lunatech is an Eclipse Foundation member, NLJUG member, sponsor of conferences like Devoxx and we host various meetups in our office in Rotterdam.

What we offer

• 🔄 Non-traditional, team-focused way of working

• 📡 Variety of projects & modern tech (JVM, AI, cloud, etc.) in different domains

• 🤝 Skilled & supportive colleagues

• 💻 Macbook Pro & great work environment

• 🚉 NS business card for sustainable travel

• 💰 Competitive salary (€45–60K) based on experience and performance

• And much more…

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