Hysopt
Backend Developer
HysoptBelgium9 hours ago
Part-timeEngineering, Information Technology
Want to grow together with a cutting-edge company, work with innovative software and put your passion for energy to use, all while helping to save the earth?

As a Backend Developer, you contribute to the “behind the scenes magic” of the Hysopt product suite on a daily basis. You help transform complex physical HVAC concepts and mathematical models into high-performance, scalable software that engineers rely on to design better systems.

This Is What Your Week Looks Like

  • You use modern technologies like Java, Spring Boot, and popular Java libraries
  • You develop API’s, business logic and algorithms in the heart of our software
  • You become a part of an experienced R&D team which is responsible for the full software development lifecycle, including implementation, architecture, devops, testing, requirements and maintenance

You Recognise Yourself In This

  • Master in Computer Science, Computer Engineering or equivalent, with at least 3 years experience in Java backend development
  • Affinity with physics and/or mathematics, and interested in understanding the hydraulic and thermodynamic behavior of heating and cooling systems
  • Experience with the total lifecycle of software development, or eager in making it your own
  • Knowledge of the following technologies is an advantage: Java, Spring, Hibernate, Lombok, Mapstruct, Feign, OpenApi, MySql, Maven, Gradle, Intellij products, Amazon AWS and all its services, Docker containers, Atlassian products and OAuth 2.0
  • Experience with Scrum or Agile development methodologies
  • Fluent in English, Dutch is a plus

What’s In It For You

  • Have a big impact on our company and the climate
  • Join a company that revolves around innovation and continuous learning, with the help of experienced colleagues, the usage of the latest technologies, and a training budget
  • Get an attractive salary with additional benefits, such as a company car, group insurance, etc.
  • Have the possibility to work part time from home

We are Hysopt

Hysopt is a rapidly growing SaaS company originating from the University of Antwerp. We develop physics-based HVAC engineering software that helps engineers design, analyse and optimise complex hydronic systems with confidence.

Our cloud platform enables better-informed design decisions, improved system performance and a smoother transition towards low-carbon building systems. By replacing rule-of-thumb calculations with accurate simulation, we support HVAC professionals in delivering efficient, reliable and future-proof solutions.



Applications are reviewed on a rolling basis, so speed is key. The sooner you apply, the quicker we can arrange an interview. Unfortunately we aren't in a position to sponsor candidate visas. If you don't have the independent right to work in Belgium we will not be able to progress your application.

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