I applied online. The process took 1 week. I interviewed at The Trade Desk (New York, NY) in Dec 2018
Interview
I did a HackerRank assessment. I did well so they brought me onsite. We chatted and then I was given a take home test. The take home test was laborious and unclear. They refused to give me sample data and sample runs. I left.
Interview questions [1]
Question 1
Implement N-way set associative cache. They answered my questions with questions.
60 mins - Algorithm questions. it was generally leetcode med level algorithm questions and they asked 2 questions. They were kind of rushing the interview and didn't seem like they cared about the interview.
I applied through a recruiter. I interviewed at The Trade Desk
Interview
Initial Screen: A 30-minute phone call with a recruiter to discuss resume, experience, and interest in The Trade Desk.
Technical Assessment/Case Study:
Engineering: A 90-minute online assessment (often via CodeSignal) simulating real-world projects, focusing on algorithms and data structures.
Commercial/Trading: A take-home case study or data presentation prepared in advance and presented to the team.
Panel/On-Site Interviews: Multiple (4-5) 30-minute, back-to-back, or virtual interviews with team members and hiring managers. Questions focus on past experiences, behavioral scenarios, and problem-solving.
Final Presentation/Cultural Fit: A final, often in-person, interview focused on ensuring candidates align with the company's culture and possess the confidence and skills needed for role
Interview questions [1]
Question 1
Banking System Design: A multi-level challenge where you start by implementing basic deposits/withdrawals and scale to "Top K" transaction ranking, scheduled payments, and merging account histories.
I applied online. I interviewed at The Trade Desk (Sydney) in Oct 2025
Interview
I applied for a SDE position in Sydney AU. Online accessed + recruiter call + 4 rounds onsite rounds. The recruiter was super efficient and professional, some interviewers were very professional and friendly, however, the hiring manager had astonishingly bad manners, he gave an ambiguous and topic and didn’t collaborate or specify what aspects to focus on, as I continued to seek clarification, he became visibly frustrated and started yelling. Would recommend the company to improve the mental maturity of this hiring manager from HK before allowing him to become an interviewer again. The hiring manager's terrible manner explains why the same job has been posted again and again on Linkedin but never been filled over the last 2 months.
