Pick what your passionate about and learn it deeply. However you would be well advised to take atleased one course on: - networking, focus TCP - Compilers, foc

Pick what your passionate about and learn it deeply. However you would be well advised to take atleased one course on: - networking, focus TCP - Compilers, focus theory behind lex and yacc, or equivalent - parallel algorithms, focus on lock free and message passing - A.I. focus on or-tree search and genetic emergence. (Not ML, important but that comes later) - functional models of computation and recursion.