After completing a fairly broad engineering degree, I now what to focus more on electronics/control.
Do you wish to focus more on electronic systems, controls systems, or embedded control systems?
was you degree orientated more towards electronics, electrical systems or mechanical systems?
if you wish to work primarily on the hardware side of things then you only need basic understanding of programming, if you wish to work on embedded electronics on software then not only will you need to program in C/ADA you will also need to understand assembler and different technologies 8-bit to 64-bit.
you will also ,as a start, need to understand numerical methods in software,information systems (eg, error correction, cyclic codes, compression), DSP, scheduling. operating systems and buses.
So once you can write basic software there is still a vast amount of learning required.
if you are interest in control systems then you could also condiser Programmable Logic Controllers(PLCs) include microPLCs, intelligent relays, etc. Ladder Logic is easy to understand if coming from an electrical background.