No thanks.
Edit: My 'favorite' experience was the few months of consulting work I did with a team building Rails apps to deal with medical records and the app that I came into had tons of dead code paths that leaked HIPAA-regulated data all over the place.
None of the API routes were 100% functional, so I spent my first few weeks cleaning that up and making it bulletproof. Then I fixed their broken homebrewed SAML IdP. None of that work that I did was appreciated as they only wanted (but wouldn't say that they wanted) new frontend features to show off to the client to inflate the quality of their work.
More importantly, they were using Rails4, but implemented everything by watching a Rails2-era Railscast and would get frustrated with me for not doing the same, a.k.a "the rails way" (I was, just modern Rails and not their broken bullshit). And that was the CTO...