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I would argue if you were ignorant of those items, you were not very productive. Someone eventually had to come back and fix that. It’s like tossing code at QA

• z3t4 8y ago
  As a senior developer you have a dilemma, leave code dept and maybe later get accused of writing crappy code. Or fix all edge cases and and get accused for being too slow and expensive. By the time I have assessed the requirements to chose the optimal balance between hardness and dev-time, setup the right environment and automated the deployment, and made a plan for scaling out ... My former self would have already shipped the code, it would be billed, and the boss would be happy. But you are right about the total productivity, because a year or so later, the boss will wonder why something that took 3 minutes to do before, now takes 3 hours. But usually those hours are billable, so the boss is happy anyway. Then there's time to market vs software quality, how performance and security only becomes an issue after the fact, maybe I'll write a blog post.