Personally I would say no. For me a CS degree is too general as post graduate study, You don't need to prove that you are capable of coding as (I assume) you ha

Personally I would say no. For me a CS degree is too general as post graduate study, You don't need to prove that you are capable of coding as (I assume) you have a decent online portfolio of your work / what you are capable of. You already have an engineering degree - If you are set on doing a Masters I would do it in something you are interested in, that is more specialised, has longevity and is related to your ideal future job (e.g. Data Science, Big Data, Distributed / HPC). I have recently taken on a Computer Science graduate who is doing a Masters in Data Science because we needed a good "All Rounder" with a focus on Data Science and Engineering.