I am learning Java right now but I'm not *using* it so... not sure if it's going to stick. Other than that I am doing a lot of game jams and sharpening my game design skills (so. much. fun.).
Operations side, you name it... Git, Jenkins, Puppet, Pulp, LogStash, Salt, Chief, Maven, AWS, GCP, Azure, HAProxy, Apache, and a huge dose of Python.
Dev side, just starting but in order of expertise: Python, C#, Unity, HTML, CSS, JS, PHP, SQL.
Currently hacking on
Right now I have four projects going. A Simon game in Unity, A habit and mood tracker with Android and web interface, a full stack website with store capabilities, the magnum opes that is WAY too big a scope for one person that we all have in that one folder and find ourselves thinking about on long trips. ;)
I am always up for some game design projects, especially in Unity but all my experience is on operations side so I am usually asked most about my ideas on network setup.