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The general rule is to dress one step up from those in the role. Everyone in hoodie and shorts? Wear pants. Everyone in collared polos? Go business casual with maybe a blazer. Showing up a level lower makes you look unprepared. Showing up some levels higher, like in a suit to a hoodie shop, shows lack of research and reading a room. In start ups, I have seen candidates nearly rejected just on a suit alone. Def starte…
That's the point. One of my first interviews in tech was with a CEO who dressed with an Iron Maiden t-shirt. That settled to me the question about whether I would need to worry too much about looks at the office! :)
'Uniforms' can go both ways. Would a person who only owns white Oxford shirts and monochrome dress pants have to go out and buy a new wardrobe he would feel very uncomfortable in if he wanted to work there? People who wear 20 year old band t-shirts can be every bit as judgemental about looks as people who wear tailored Italian suits.