Development projects
I also take on selected projects as a senior .NET and JavaScript engineer, front-end, back-end or both. I do this alongside my other work, so availability is limited, but over 26 years I've built and maintained real production systems, not prototypes, in environments where things had to keep working.
For front-end and UI work, I build with Componyx. Not as a sales pitch, but because after more than a decade of refining it, it's the fastest and most capable way I know to build user interfaces. For backend work, data, architecture or anything that isn't fundamentally about user interfaces, I work with whatever the project actually calls for.