My work: I am an IoT developer, wearing many hats at a small company, undertaking technical sales, post sale support, R&D, product development, and some commissioning when required. Given the wide bredth of areas I work in I can turn my hand to most technologies or skills, having developed enclosures, electronics and the code to run on it through to working on our cloud infrastructure security and internal apps.
On the side I advise/consult on smart building solutions.
An app I've Developed; https://apps.apple.com/gb/app/mqtt-developer/id6505110467