Focus on learning one programming language and accelerate your SWE career

Become an expert and a valuable team player. (4 min)

Intro

When I first started my software engineering career back at the University, I thought that “learning” multiple languages and technologies would make me a better developer.

I jumped from “learning” some C++, some Python, some Ruby, and some Swift.

Then I had an eye-opening tech interview which I almost failed.

I realized that’s not the case.

🎯 Main Takeaways

• The problem with spreading yourself into many languages.

• Benefits of mastering one language.

• Expertise is found in Depth, not Breadth.

The tech interview I almost failed

Around 5 years ago I went to a technical interview at my previous company. In my CV, I mentioned I’m skilled in different languages and technologies.

An example of my CV with the many skills I’ve mentioned.

During the interview, I was asked many questions about the skills I said I was capable of.

They asked me deep questions …