Working at Cooll
Cooll is a scale up company that revolutionizes the heating industry with a technology that significantly reduces gas usage and CO₂ emissions. Founded in 2009 as a spin-off from the University of Twente, we have developed a thermally driven heat pump powered by natural gas or hydrogen, compatible with both high- and low-temperature heating systems. Our technology achieves a reduction in gas usage and CO₂ emissions of 25-40%, without increasing electricity consumption. We are preparing to introduce this technology to the market together with manufacturing partners. We’re looking for professionals to accelerate this mission.

Why work at Cooll?
Working at Cooll means being part of a dynamic and forward thinking team that values creativity, growth and a collaborative mindset. Here are some of the benefits of joining our team:
- Innovative Environment
Cooll’s has developed a unique technology with several innovative topics on which you can contribute. Not only from a technology, but also from a business perspective an innovative mindset is required. - Professional Development
Being a scale-up company comes with many opportunities for growth and to expand your skillset. - Informal and inclusive Culture
At Cooll, we believe our people make the organization. Employee involvement and ownership are therefore important concepts, but flexibility and entrepreneurship are valued as well. - Work-Life Balance
We offer flexible working arrangements to help you maintain a healthy balance between work and personal life. - Employee Well-being
Cooll offers a competitive package, including a participation program for employees and regular team-building activities.
Our mindset
Our mission is unique, and so are our people. We’re a company filled with eager, flexible minds that crush technical challenges every day. Where there are no answers, we stay cooll and find them. In the absence of clear pathways, we eagerly forge them. We challenge the status quo to enable more sustainable heating of our homes.
Company values
- Innovation
Innovation is the core of what we do and with continuous improvement we stay ahead of the competition. - Honesty
Cooll aims to be integer, honest and transparent in order to build a successful long term business. - Adaptability
The energy transition is an environment that can change rapidly, flexibility is therefore a must. - Teamwork
Open communication, diversity and mutual respect are crucial to achieve our goals.
Meet some of our colleagues
Our team is our greatest asset. Comprised of talented researchers, engineers and business professionals,
we share the common goal to drive innovation in sustainable heating.

Technology Director

Project Leader

Mechatronics Engineer

Project Leader

Production Engineer

Engineering Director
Office and Production Facility
We are based at Radartoren B17 in Hengelo. A unique complex located by the water, standing 30 meters tall. Centrally situated within the High Tech Systems Park, it offers unparalleled access to a wide range of amenities and facilities. The environment fosters lots of facilities in the categories park management, high tech facilities & labs, event space, meeting rooms and food & drinks.
The nearest bus stop is about 600 m. from our office (7 minute walk). If you travel by car, there is enough free parking right in front of the building. Find out how much time your commute takes by using this link on Google Maps.
Apply for a Cooll job
We are always on the lookout for passionate individuals to join our team. Are you ready to make a difference in the world of sustainable energy? You will find our current job openings here. Apply now and become part of our journey! Please contact Otto Waterlander if you have any questions.
Current vacancies
- Senior Production Engineer
- Embedded Software Engineer
- Business Development Manager (soon)
- Open Application (soon)