If you have free time and some income (not sure that you have much of either of those during a postdoc) then I would hold off on getting a getting a dev job as

If you have free time and some income (not sure that you have much of either of those during a postdoc) then I would hold off on getting a getting a dev job as long as possible. Instead, focus on allowing your curiosity in development take you for the ride and continue building your craft. The more powerful your development chops become, the less you have to worry about landing a job. Take care of the important things and the rest will work themselves out. You might try your hand at contributing to open source projects. Find one that interests you, watch the flow of communication and code publishing, learn the code well and then work to insert yourself into that flow with contributions. You will get great experience with being part of a development team. You might also try your hand working on some of your own ideas for things which can bring in some cash. Start small and try a number of ideas. This is a great learning experience because you make mistakes and then adjust, the same thing that every start-up has to go through.