Disclaimer: CTO Sense Health here (http://sense-health.com/)
We make apps to help people with depression and have our apps actively used by a small team in the biggest mental health care company in the Netherlands.
It is one of the most fulfilling place I have worked at because I get to meet actual patients and psychologists and get to know how much impact we have on their lives.
One of our patients messaged us one day saying how they would not be alive today had they not found the therapy with our application. I cannot express the feeling this brings in the team.
We are always looking for great tech talent for remote/on-site positions too BTW (specially React and React Native)