What to wear to a tech interview and first week
Interview
Smart casual usually fits better than a suit: a clean shirt or knit, dark jeans or chinos, and tidy shoes. If you are unsure, add a soft blazer you can take off.
Your first week
Most teams dress casually. For the first few days, aim one step above what you saw at the interview, then match your team.
Every day
Comfortable and neat: plain tops or knits, chinos or dark jeans, and clean sneakers or loafers. Customer-facing roles may dress up for meetings.