If you're optimizing for pure employability and a low entry barrier then Java, but don't expect projects to be too interesting or well paid unless it's FinTech.

If you're optimizing for pure employability and a low entry barrier then Java, but don't expect projects to be too interesting or well paid unless it's FinTech. Likewise with C#. JavaScript + React is a pretty sure bet with plenty of options if you're interested in frontend development. However, if you're optimizing for money and are wiling to invest time (at least one year) in learning then it's: - Swift + iOS. - Scala/Go + Backend development: distributed or real time systems. - Python + Machine Learning.