Pros: TripAdvisor is growing aggressively, and this means there are plenty of promotion and advancement opportunities for people who have ability and are willing to work for it. I've worked at places where there are at least three qualified people jockeying for each opportunity to advance. TripAdvisor is NOT one of them. As of 2013, TripAdvisor is an excellent place for those who want to break through from senior to principal engineer or into management. Overall, the level of bureaucracy in engineering is still low, and it's possible to get things done without waiting a long time for management to make opaque decisions behind closed doors.

Cons: The location in Newton is not convenient unless you happen to already live in one of the western suburbs. TripAdvisor does not do a lot of fundamental R&D on new technologies. Look elsewhere if that is a priority for you.

Pros: Interned with Tripadvisor in El Segundo, LA. The teams here mostly work on Tripadvisor Experiences and viator.com. Some of the smartest people I have worked with. Great opportunities to build a strong career. You get to work on things that you are passionate about. Interesting tech stack. Everyone is enthusiastic and passionate about the work they do. People are very friendly.

Cons: It is a small office, which is both good and bad.

Pros: Everyone in engineering is extremely sharp and capable. This is a great place to get some hands-on web development experience on a large and complex site. You will be writing server-side code that must scale to handle millions of requests, not just CSS/JavaScript when I say web development. The engineering philosophy is to encourage all engineers to handle all layers in the stack, so you will be writing CSS and JavaScript, in addition to backend code. This cuts both ways. It's really interesting when you're starting out because you will learn a lot and feel a great sense of ownership over the entire project you're working on, but after a while, you might decide there are parts of the stack that you'd prefer not to work on. My compensation was pretty good when I started, and I got a nice merit raise after a year. Your engineering co-workers will be fun to work with and more than willing to pull their weight. I didn't encounter any dead weight while I was working there. The hiring process seems to do a good job filtering out under-qualified and under-performing candidates.

Cons: The interviewing process is very heavy on algorithms and data structures questions, which might make you believe that those are the kind of problems you'll be encountering on a daily basis. This really isn't the case. Trip needs to hire really smart people because there is a very large, 10+ year old codebase. Often, a project will require making changes or additions to parts of this complex web of interconnected classes. Basically, it helps to be a genius if you want to read the code and understand it. The interviewing process also serves as an excellent weeding-out mechanism, but many of the recent grad hires don't really have any real coding experience, so the maintainability of the code they write leaves something to be desired. The reality of working here as an engineer is that because they want you to work on the entire stack for every project, you will be writing a non-trivial amount of CSS and JavaScript. At first, if you're like me and never did that kind of work before, you'll learn a lot. But after a while, you might get tired of trying to position a page element and making the styles look correct in IE6. There are some projects that are heavier on this than others, and your mileage may vary based on the group you're on. After a while, if you realize there are parts of the stack you'd like to avoid, it becomes difficult to avoid them. Changing groups is something that is discussed as a viable option, but it's pretty difficult from what I saw. Your manager might try to take these preferences into account, but you will not be able to escape IE6 display bugs if you're in a group that works on any user-facing code. If you're completely opposed to doing any client-side work, don't work here, or make sure you're being hired into a group that never does live site work. The management hierarchy is flat (but growing taller), which means that your chances for advancement aren't super-promising. You can see some people being groomed, shaking the right hands and playing politics correctly to be promoted into the lower management layer. I wasn't striving to be a middle manager in a 100+ person engineering department, and if you want to stay on the coding side of the fence, there aren't really many places to go. They hire startup-minded people, so churn is inevitable. If you're smart (and you are if you get hired here), you'll probably be intellectually challenged for a year or two, learn a lot, and write code that millions of people will use daily. But after that, you will probably get bored and want to move on. The nature of the skills they help you develop makes you well-suited to work at a startup because you've worked on all parts of the web development stack and you're now familiar with lots of the non-engineering aspects of creating and maintaining a profitable website.