Initially, a one-hour informational interview. I was subsequently given a coding exercise to do in my own time at home (no deadline, spent around 20 hours in total).
Had to deal with feedback and additional iterations via e-mail, then a video call for final review with two engineers.
After this, a panel on-site with (I think) five different one-hour interviews covering various areas:
Interviewers were relaxed and approachable; we even had fun in what's normally a tense situation.
Solve an algorithmic problem in a live coding session.
The following metrics were computed from 10 interview experiences for the The Trade Desk Senior Software Engineer role in London, England.
The Trade Desk's interview process for their Senior Software Engineer roles in London, England is very selective, failing most engineers who go through it.
Candidates reported having very negative feelings for The Trade Desk's Senior Software Engineer interview process in London, England.