The Bitcoin.org Development Guide has grown by leaps in bounds this year,
and has two great introductions:

1. https://bitcoin.org/en/development for an overview of how a developer
can contribute,
2. https://bitcoin.org/en/developer-reference for in-detail reference to
how the whole system works.

Other great places to get involved or find more detail include the Bitcoin
Wiki <https://en.bitcoin.it/wiki/Main_Page> and the #bitcoin-dev room on
Freenode <irc://irc.freenode.net/bitcoin-dev>.

Hope that helps!

On Mon, Nov 2, 2015 at 6:03 AM Panos Sakkos via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Hey,
>
> I'm interested in helping out with the development of Bitcoin Core.
> I'm used to getting involved with huge projects by starting to write unit
> tests (in order to get familiar with the project's tools, infrastructure
> etc).
>
> Is there any ramp up process (like for example any documentation) that I
> can start with?
>
> Also, if you are a leading a test effort and you need a hand, please 'r'
> me :)
>
> Thanks in advance!
> :panos
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>