I don't think so, because I've developed some quite popular software and done well in programming contests.

Programming contests show nothing about your organizational skills, which is what companies should be looking for.

See https://news.ycombinator.com/item?id=5911235

Mathematicians perform very well on programming contests, but they are usually terrible software engineers.

Anyways, I was just kidding :)

I think that mathematicians don't do well in software development because they simply have much less experience than other devs :) I think that what's most important in software engneering is experience, motivation, intelligence, common sense and good taste (aesthetics).

Google is full of engineers that did well on programming contests, they even have their own contest, and i don't think they are all terrible software engineers.

I don't think the problems in algorithmics contests are in the category of brainteasers. As far as i know Google still relies heavily on knowledge of algorithms and problem solving capability to hire their engineers.

Fair point. I still think there are two types of programmers: problem solvers and system architects.

The former (e.g. a data scientist) will be good solving a problem but bad building a big architecture. The latter, the other way around.

I guess the question is which kind of programmer you are and which skills to look for.

I think there are probably more than just two types of programmers.