Late last year was my first time using Triplebyte, and I actually ended up accepting an offer for a company through them. My experience was great. I should preface that you should take the process fairly seriously. The great part of Triplebyte is that it is a very personalized process, but that means you've to be prepared with what you are looking for in companies, have time slots free to talk to their people and so on. The Triplebyte interviewers and recruiters are very nice people. After clearing the online quiz, I had a 2.5 hour video interview. The primary question I selected was the "general programming" category, and the task was to implement a connect 4 game validator. Thee interviewer was very patient, and we ran through several iterations and trials for about an hour. The next part of the interview is designed to test your conceptual knowledge boundaries and will be calibrated to your skill set and experience. As I was looking for a systems programming role, we went over network protocols, HTTP, Databases, compilers, basic data structures, caching and so on. I felt like it was a good practical test of my skills. For example we walked through how I'd improve a SQL database performance by using memcache. What approaches would I use to keep the cache valid. How might I store values larger than the per-key value limits of the cache while optimizing for space vs time. How would such a process be atomic and how would I ensure the cache would stay up even if there were lot of updates coming in. Over all, very enjoyable. I really liked the thoroughness of it and yet, they avoided specific frameworks or libraries for the most part. Focus on the fundamentals, think out loud and you will be fine. Once you clear this stage, you are in the actual hiring funnel. The next round is again a technical one for 2 hours. This is less an interview and more about going over various software fundamentals, from data structures and algorithms to Unix internals, databases and scaling. The interviewer will help you identify weak spots that you can read up on for the actual company interviews. They will also send you a comprehensive set of links as a follow up to brush up on things. I really enjoyed all the technical parts as they were representative of the day to day work I'd have to do and the convenience of skipping tedious phone screens with several companies is priceless. The rest of the process is just as well done, Triplebyte is very responsive and supportive. Couple of tips: 1) Apply to Triplebyte first. That way you can go through them to their company network. If (like me) you apply to a company externally, then find out they are Triplebyte partners, Triplebyte can't put you through to them. 2) Don't go in expecting to join a BigCo just yet. Triplebyte is focused on YC companies and not Google and Amazon. Most of their portfolio is small startups. If that is not what you are looking for, make those expectations clear.