A few days after your resume is forwarded by your friend, the HR team will contact you. This will be a pre-interview screening call, where the HR will request your help to walk through the different areas where you've worked, and how you've transitioned into each role you've listed on your resume. (considering you have done more than one role in the past)
After that, a telephonic round is scheduled. In this round, the interviewer assesses your ability to discuss your role and responsibilities in depth, trying to gauge how well you've worked and delivered your previous assignments. This isn't a round about just your Business Analyst experience, but everything you've done before and afterwards. It's a very open, candid conversation on your skill sets, roles and your journey into each round. The interviewer puts you in total ease and drives the discussion so effortlessly.
Once that's done and you've cleared it - you're set for the next round, which is the first of the face-to-face interviews. This is a purely technical round, where the interviewers will gauge your length and breath of Business Analyst experience by making you walk through your past assignments, how you went about delivering it, your ability to think through the challenges etc. This round runs for typically 1-1.5 hours and gets into granular aspects of your role as a Business Analyst.
Point to note: Every round has an evaluation component of how well you would fit into the ThoughtWorks culture. So be your natural self and be bold, assertive in places where you should be so.
After this is the next face-to-face, case-study round, where the interview candidate is given a brief, one-liner problem statement and made to think in the lines of a ThoughtWorks consultant. The key skill tested here is your ability to ask the right questions, break down the problem into multiple manageable fragments and deliver a solution that will work well for the client and the company (TW). This round is rigorous and thorough! I was challenged in all aspects, but I loved this round simply because it brought out the Consultant side in me that I wasn't aware of earlier.
After this is the leadership round. A series of situational questions are given to you and the interviewers ask you for how you'd approach each of these situations. My advise would be that you be extremely open, forthright and honest in your opinions in this round. Somehow, I feel that ThoughtWorkers are very smart and they can smell an insincere reply from miles away. So, if you're going to be aggressive to get work done (because it's in your nature), tell them that. Don't paint and provide a picture that's very far from your true personality. You won't make it further as well. Next up after this, the candidate is evaluated for his/ her social responsibility. This round is very informal and candid, and the discussion focuses on the world we live in, and how you (as an individual) try to make a difference to it!
The last and final discussion is the HR discussion. There is room to be open and put forth your expectations here. The HR team is extremely helpful, open and ready to help, whenever you need help. Just be out in the open and tell them what works for you, and what doesn't, so that you can work it out with them! There's always room to balance only if you tried to talk it through. Not to mention - the HR team is very, very sweet and approachable, unlike most companies out there.
I initially went in with an open mind that I'd take the feedback and improve as a person, no matter how far I managed to go into the interview/ evaluation process. Having done the end-to-end process and cleared it too, I can vouch that it's unlike any interviews I've attended in the past. ThoughtWorks challenges you in every aspect, and stands apart from any other company's evaluation process. I encourage people to TRY the process no matter how far you go with the tide. It changes the way you view things in many ways, and I can confidently say that I've changed some of my perspectives after going through it. Good luck and best wishes!