I applied through a recruiter. I interviewed at The Trade Desk (London, England) in Aug 2021
Interview
1. HR call
2. Hiring Manager round [ went very well]
2. 4 hr coding challenge [did well]
3. Code review from PHD Scientist [Went very well, he got impressed and had no comments on my code]
4. Panel interview 1 & 2
system design [ Got +ve Ack for every system design decision/discussion I made, went well]
Panel interview 3
Coding/Problem solving, Arrived at solution with best complexity 0(1) and even then the reaction was not ok from interviewer. Racist kind as I'm from India
Panel interview 4
Coding/Problem solving
Interviewer was totally impressed and happy
At the end, I got an email on follow up saying they could not proceed with my application even though they really got positive feedback. Basically they want to play racist game. Thanks The Trade Desk for wasting my time.
Guys, it's a time waste. Apply only if you know someone personally. They don't prefer real talent.
Call with recruiter, hiring manager, then schedule 4 technical rounds in the same week, 2 days after last technical section offer is released. Recruiter explained the process and reason behind each section very well, so I can expect what will happen and how I can prepare. Instructions within the round are very clear, interviewers are helpful and collaborative, so even the questions are not that easy the process is actually quite enjoyable and I feel respected. The process is very efficient, from they receive my application to offer accepted takes around a month
Interview questions [1]
Question 1
problem solving questions that might not need to execute the code but need to explain, need to debug an existing codebase, a Leetcode medium algo question, system design question
I applied online. I interviewed at The Trade Desk (Singapore) in Feb 2026
Interview
1. Applied Online.
2. Received/Completed Hackerrank Online Assessment.
3. Recruiter call about the role, salary expectations and leveling -- expecting next technical interview
4. One week later recruiter reached out that the role has been filled.
I applied online. The process took 2 months. I interviewed at The Trade Desk in Sept 2025
Interview
Online Assessment, followed by a Hiring Manager interview that was System Design + Behavioral. Didn't pass that stage, was not given a reason, but I assume it was the system design portion. Next stage would have been a loop (2 coding + 1 system design).