A nice platform to hone one's skills.
I'm working on my math thesis at MIPT. Also, I have just started training ACM teams at MIPT.
Competitive programming, math, teaching, music.
Practice a lot, reach out to other platforms and seek new ways to get better at what you do.
I've been doing algorithm matches at Topcoder for two years now, and other programming contests for quite some time. I attended TCO14 algorithm finals and placed 4th.