Unfortunately the high energy / fun environment is camouflage for Slalom paying you below market without any equity options. No matter what they say, you will be doing staff aug work at 1-5 Customer's in SF (Genentech, PG&E, Salesforce, Gap, etc..) The projects will range 4-12 months long and you'll cycle between those clients. There is little opportunity for you to advance internally and you won't come out more valuable to other companies. Advise is to skip the company all together.