Pros: The actual work here is very interesting. As a systems engineer, I couldn't ask for much that's more exciting than helping build a database. Peers are very intelligent, and care is put into making committed code as good as it can be. I've learned so much on the job here.

Cons: Management is unskilled and untrained. Some people who work here are jerks, and are allowed to keep being jerks as long as they produce quality code. This drives away other talented, friendlier engineers. The culture is unhealthy in promoting quality/quantity of work over most else--interpersonal relations, work-life balance, and personal sanity included. Diversity in age, race, gender, religion, undergraduate college, and many other vectors is sorely lacking. Female employees, especially engineers, are treated unfairly no matter how much MongoDB pays lip service to this cause.

Pros: Great WLB; decent work scope and product; engineering culture overall is great.

Cons: The pay can be better.

Pros: - Lots of opportunity for lateral and vertical movement. - A general focus by management on what the company can do for your career. - Many very smart people who are happy to mentor or help you grow. - Autonomy as an engineer to work however fits you best. - Opportunity to work with and on exciting technologies. - Great work-life balance.

Cons: - Open office, if that's not your thing. - Engineering focused around the Midtown Manhattan office. Remote is becoming more and more viable, however. - Still some growing pains as the company is expanding rapidly, such as channels for cross-team collaboration that are in their creation stages.