Stripe CTF 3.0
From: https://stripe.com/blog/ctf3-coming-soon
Like with previous CTFs, our goal is to give you hands-on exposure to interesting engineering problems that you normally only get to read about. If you’ve been wanting to really grok things like Paxos/Raft, DDOS prevention, distributed search, or Bitcoin (and maybe even bit twiddling), now’s your chance.
Can’t wait! I had so much fun with last year’s web application penetration CTF. Time to apply my recently-gained knowledge of Raft and write some Go!