[recvonline]

Many great recommendations already. What I found the hardest was to know _which_ tech stack to learn. Are focussing on Ethereum, Bitcoin, Polkadot etc.

Want to work on the chain itself, on an application that communicates with different chains, Smart contracts etc.

I would approach it from; Which company or product do you find interesting and want to work for? Then I would read the Required section in the job description and start learning these skills.

Parity for example has great tutorials for their Substrate framework and this alone is probably a great starting point to venture out and learn concepts you come across you don’t know yet.