Lead Frontend Developer

Want to grow with a technology-driven scale-up and work on a complex SaaS product that tackles real-world engineering challenges?

As a Frontend Developer, you will join the R&D team to build, expand and improve the user interface of the Hysopt platform, translating advanced engineering logic into clear, performant and user-friendly web applications.

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Your day-to-day responsibilities:

• Develop and expand the user interface of the innovative Hysopt software
• Contribute to the user experience of our cutting edge applications
• Integrate the Hysopt software with other software
• Make use of modern software technologies and continuously improve the development process
• Implementation, software architecture, cloud infrastructure, devops, testing and maintenance

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You recognise yourself in this:

• Frontend developer with good knowledge of React and Typescript
• Required qualification: a master’s degree in computer science, computer engineering, or equivalent with at least 3 years’ experience in software development
• Knowledge of Amazon AWS and Java backend development is an advantage
• Affinity with physics and/or mathematics, and you are interested in understanding the hydraulic and thermodynamic behavior of heating and cooling systems
• Experience with Scrum or Agile development methodology
• Fluent in English (Dutch is an advantage)
• Enjoys working independently in a structured way

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What’s in it for you:

• You join a scale-up and fast-growing company with an open corporate culture
• You have a big impact on the development of the Hysopt software, an innovative Belgian product
• You work with the latest technologies
• You have the opportunity for continuous learning
• Attractive salary package and extra-legal benefits (company car, mobile phone, laptop, health insurance, meal vouchers, …), with the possibility to work parttime from home
• Regular teambuilding activities

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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.

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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.