"Which programming language?" is not meaningful question. You can learn a new programming language quickly. What you will need is an understanding of computer

"Which programming language?" is not meaningful question. You can learn a new programming language quickly. What you will need is an understanding of computer science (theory and algorithms) and mathematics. On top of that, you'll need deep familiarity with your domain interests -- software development, electronics, and economics. Different programming languages provide different frameworks for thinking about problems, but don't provide much help in solving them (unless it's done in the standard library ;-) )