Pros: - Working with intelligent people

Cons: I joined the company in, let's say, "rough times," so the overall impression might be a bit biased. But the main struggles were the following: * Instant context switching, based on the ever-rising problems. * A bit disorganized, lack of planning, estimating, etc. * Lack of resources (e.g., a project manager).

Pros: Young people everywhere, free beer, good localization, and a relaxed environment, although small and packed with people.

Cons: Nobody really knows what they are doing. They just do whatever they want. There is no planning, no respect for people. They just fire anyone at will. A lot of people are leaving, and new people are coming in, unaware of what's happening.

Pros: Interesting challenges exist to apply technology to innovate in the "local" space. We're way more than a "daily deal" company. My colleagues at Groupon are smart, driven, and fun. We're an "agile shop" organized into small feature teams, all doing focused work. We are expected to not just deliver software but design and innovate the product. We've just scratched the surface with the systems and products we'll build to achieve our goals. That means lots of opportunities to learn new things and work on different projects; new teams are forming all the time. Things are getting better and better for engineers. From an employee-driven "open transfer" policy (if you want to move teams, find a fit, and go for it), a per-engineer conference/training budget, and regular hack-a-thons, everyone is putting effort into making Groupon a great place to be an engineer.

Cons: It's a young company that grew really fast. Lots of things to get better at, like making decisions and communicating throughout the organization. With lots of small teams working independently, it's tough if you need to coordinate things. It's been a rough year with poor public press and a CEO change out.