Advanced Bootcamp

I'm not sure exactly what you mean by "advanced" and how advanced you mean. A lot of the top bootcamps do have fairly challenging entrance tests, e.g. Codesmith tests on recursion just to get in. So like if Codesmith, Hack Reactor, App Academy, all seem too easy then you can look into the career accelerator group of program. The more "career accelerator" type programs are roughly the same cost as bootcamps but focusing on people with "employable skills" get jobs, rather than teaching people things from step 0 or 0.1. I'm the co-founder of Formation.dev which is one option and then other other programs are Interview Kickstart, Scaler, Pathrise, and Outco. At Formation, most people we work with have 1-3 years of experience already (and the other programs are similar) and we work with you for as long as it takes to get a job you love (with most people targeting truly top tier companies). I suspect these types of programs might be too far in the opposite direction, but throwing them out there to you can look at the spectrum of things out there.