Pros: Great firm. Great benefits. Very relaxed/chill work. Flat structure.

Cons: Your work highly depends on your department. You could have an extremely dynamic and exciting job or team, or not so much. No equity like other firms. Very flat structure. So much so that a promotion could be 5-10 years away (depends on department).

Pros: Good training program for entry-level people. Quite a few smart people around. Great offices to work in: very attractive, good location, communal kitchen, lecture theatres, etc. The office in general feels quite busy and bustling. Lots of perks like free theatre/exhibition tickets, events, etc. Good amount of responsibility from early on. Good pay. Good name to have on the CV.

Cons: Lots of the codebase is pretty antiquated – Fortran code, old 1000-line C functions from the 1980s, etc. Lots of proprietary stuff you have to learn that isn't transferable, so you run the risk of getting a bit institutionalized. Also, Bloomberg often unnecessarily has its own little version of something (file I/O libraries, etc.). Senior management have their heads in the clouds and are fairly political. Many have been there since the dawn of time and have an outdated view of how the company works. They will push through initiatives that they have 'sold' to their superiors, even if they just don't make sense at ground level. One of those companies (and there are many) that sell themselves to applicants as having a 'flat' structure, when what this actually means is that hardly anyone ever gets moved up. There is also lots of bureaucracy and a culture of micromanagement – every working hour must be ticketed, accounted for, etc.

Pros: The culture is work-hard, play-hard, with much thought put toward philanthropy and the environment. These altruistic goals really come from the top-down. There are great snacks and a great office/environment. A lot of smart people are present all across the board. The location is convenient. Great connections throughout the city are due to the CEO being a former mayor. There are lots of educational opportunities outside of the field, such as financial training for R&D folks and technical training for business folks. Payment is offered for further education. Sports teams are available to play on. Great healthcare and a great 50% match on 401k are provided, along with generous pay raises and bonuses. An awesome training program exists for fresh-out-of-college hires. It is 12 weeks long and has fantastic instructors for advanced C++ and JavaScript, plus a lot more. Great networking opportunities are also included. It is really well run. The whole company works like clockwork, from facilities to help desk to sales to software to the data warehouse. Quite impressive.

Cons: A lot of proprietary software development tools. A lot of customers don't like change. Customers are paying a steep price, and thus often have a stronger say than they should.