Pros
Cool tech, solving challenging problems. Perks and benefits are pretty good.
Cons
Nepotism is rampant. Engineers come first and leadership tends not to care about the rest. Product people are valued, but everyone else is a third class citizen. I also witnessed nepotism in other departments as well; even Customer Success, Sales, and HR played major favorites. There is a TON of lip service and hypocrisy from leadership. CEO, Konrad, is smart, but is pretty far out of touch from his employees. Peter Day is a good CTO, but again, doesn't really appreciate even the most dedicated non-Engineers/Product people. I witnessed 3 rounds of layoffs during my time at Quantcast. Talented people (many of whom happened to be people from under-represented groups), with important skill sets and large contributions to the business were laid off, with complete disregard to the value they brought to the company - as long as they weren't Engineers, they were disposable. It doesn't feel like an environment where challenging the status quo is welcomed - regardless of what they try to convey.