Thank you all very much for your time and constructive information.
Some of you, said, and are I guess right, to say that I'm not sharing enough details in my question.
Thing is that, I'm usually quite good in thinking and delivering but I wouldn't want to self-advertise too much and sound like I brag, and ultimately developers are hard to assess and judged mostly by result. I work in a startup, have written C++, Node.JS, GPU code (mods to OpenCL mining code too), and I have ideas, but I either see them implemented, or they are too hard to just start implementing.
I wanted to get some pointers, and I've got quite a few.
An ICO is something I'd like, by doing something useful too, but I'd rather go somewhere where it's not already stepped, or join a group.
One idea of mine:
I want to create a decentralized coin that consumes so little disk space that a full node can even run in a mobile phone.
This is not just fantasy: I've read quite a few papers and I'm aiming at dropping full history by using hashes (edited: not checkpoints, as it should be purely decentralized), and cleverly sharding states, with Merkle queries, and with a possible trade-off in security, (regarding long-range-attacks, but which is not an actual trade-off, if I can mitigate the way I think I can).
But this is all a little overwhelming, my time and energy (as stated) are not entirely optimal at this point.
Generally, I'm thinking how I can contribute with something useful rather than dig for gold, but this is not always easy.
Collaborative projects may be easier to handle, or bounties, or jobs.
But, yes, one potential goal of mine is to be able to earn competitively, so that I can leave the classical industry behind and work for decentralized / bitcoin projects, which I consider more fun!
