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Software: Senior software developer; >10 years pro experience; learned to read with C64 user manual; languages I've been paid for writing stuff in: VB, Xojo, Java, Python, Bash, HTML/JS, C, C++, ObjC, IDL, Swift, SQL, PHP; supermajority of recent experience has been iOS/Swift.
Maths: Double maths A-level (UK qualification between school and university).
Sciences: Only one published paper with my name on it, and that was the industrial placement year of my degree. Enthusiastic amateur, mainly physics rather than chemistry or biology, but don't assume I know anything beyond A-level physics even though I watch degree-level relativity lectures for fun.