I initially found out about ThoughtWorks through a LinkedIn search. I applied on their website and I received a response within about a month. After they first contacted me back, they made me complete two assignments: a coding assignment and a questionnaire. The coding assignment is as difficult or as hard as you want it to be. Being the overachiever I am, I chose the hardest one which was a train path optimization solver. They also had another one which I think was a simple sales tax calculator. I would advise NOT to doing the trains problem - it took a long time and it didn't seem to boost my application in any way. One thing about their recruitment process is that it takes an extremely long time; multiply whatever timeline they give you by 3x. They said they would contact me back in less than 2 weeks but it took them at least a month and a half before they asked me to do the phone screen. The phone screen is pretty straightforward, they ask you why you want to be a software developer and work at ThoughtWorks. Be ready to tell them what programming you have done. They also ask you here about where you want to live after the initial year in Chicago. I told them I was flexible, but I think they wanted a more concrete answer. They also pressured me into giving them a salary expectation here. While I thought I did well on the phone interview, they told me a few weeks after they "did not have a position matching my skills". All in all, this is certainly the most complex and lengthy hiring process I have come across. I hear that they hire a lot of non-programming types/art majors. Apparently at least enough to warrant sending everyone to India for 5 weeks to learn basic programming. I'm not exactly sure why I didn't get hired - maybe my technical skills were TOO strong. I don't know what kind of people they are aiming to hire, but if you are skilled at multiple things and at the top of your class you may want to look elsewhere.