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> Software engineers at startups, are building proofs...

I fixed that one for you. Software engineers not at startups are usually not building proofs-of-concept. They are usually building production systems. And at the early stages of development of production systems, it can save a lot of headache down the road to think ahead. Yes, you will be slower in the moment, but the number of times I have heard a startup say "we did great with our first version, but then realized we needed to completely rewrite the thing to scale" (when the rewrite takes literally a week longer than the first version) has been too high.




>They are usually building production systems.

This is completely false. Most startups go through massive pivots. I’ve been through 6 of them (2 successful exits) and literally everyone made drastic changes to every code base to target completely different markets and features.

I’m telling you from experience, if you can’t recognize providing business value as an engineer recognizing opportunity cost, you will stagnate as a junior engineer or even destroy the company as a senior one.


Most software engineers don't work at startups.


Most software engineers don’t work on any code that scales to even thousands of users so optimization is a massive waste there too.




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