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 recognise yourself in this:
What’s in it for you:
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.
Hysopt (Hydronic System Optimisation) is a physics-based HVAC design platform that empowers engineers to deliver better-performing systems—faster, with less risk. Spun out from the University of Antwerp, Hysopt helps teams move from trial-and-error to simulation-backed certainty using digital twins and proven workflows.
Design, compare, and validate HVAC systems with ease using prebuilt templates and automated checks. Win more projects by backing your bids with quantifiable performance insights and simulation-based evidence. Avoid overengineering and rework with built-in physics calculations that eliminate failure costs before they happen.
With Hysopt, you can standardise designs, automate commissioning settings, and resolve conflicts using transparent, scientific proof—not politics. From junior onboarding to senior decision-making, Hysopt helps your whole team stay aligned, scalable, and competitive.
Used on 500+ projects, our platform turns complex HVAC designs into replicable, right-first-time results—while supporting ESG targets, regulatory compliance, and client trust. If it works in Hysopt, it works in reality.
