Medior Fullstack Developer Permanent

Help Build the Digital Foundations of a Greener Future

Are you passionate about using technology to make a real impact on the energy transition? We’re a mission-driven tech company working at the intersection of clean energy and software innovation. Our platform supports smarter energy management—think of solutions that optimize renewable sources, storage, and consumption across various environments. If you’re motivated by building something that matters, this might be the right place for you.

About the Role

In this position, you’ll play a key role in shaping and delivering scalable backend systems and intuitive user-facing features. You’ll work across a cross-functional team, mentoring others and contributing both to the codebase and the broader architectural direction. You enjoy navigating both strategic decisions and hands-on technical challenges, turning complex energy and infrastructure problems into maintainable, high-quality software. Projects may include things like data-rich dashboards or distributed services that interact with physical infrastructure.

Who You Are

You’re someone who thrives in a fast-paced, evolving tech environment and enjoys contributing to meaningful outcomes. You bring:

• 3+ years of experience in full-stack software development.
• A higher education background in computer science or a related field (or equivalent experience).
• A thoughtful, analytical mindset with strong problem-solving abilities.
• A collaborative spirit with the ability to work independently when needed.
• Experience designing, building, testing, and deploying scalable software systems.
• Familiarity with microservices, modern DevOps practices, and cloud-native tools.

Technologies We Work With (You don’t need all of them)

• JavaScript / TypeScript / Node.js; Go is a bonus.
• Databases: MongoDB, PostgreSQL, InfluxDB.
• React (or similar modern frontend frameworks).
• REST, GraphQL, gRPC.
• CI/CD pipelines, containerization, cloud platforms (AWS preferred).
• Fluent English; Dutch is a bonus but not required.

What We Offer

• Competitive salary: €60.000 – €75.000 depending on experience.
• 38 vacation days for work-life balance.
• Hybrid working model (office + home).
• Pension plan and daily lunch provided at the office.
• Public transport card to support greener commuting.
• A supportive culture with regular team events and informal get-togethers.