Pros
Amazing Technology that is a mutli-national industry leader making it an easy sell to clients. The office environment is collabrative, friendly, fun, and engergetic giving a start-up feel but with the financial backing, systems, and stability of a much larger and more established company so really giving you the best of both worlds. There are well defined career paths for every position and the potential to be promoted quickly along the path is good. Most importantly Criteo doesn't just respect and appreciate it's employees, it loves them. The perks and benefits the company offers are huge and really unheard of for most of Boston (free snacks, generous time off policy, 401K match, 100% paid medical/dental/vision, yearly company trip to Paris, jeans-tshirt environment, company swag, great compensation and potential to exceed goals for larger bonus, fairly flexible work hours, reimbursement for transit/cellphone, etc). Every person in the office is specifically selected for their skills and drive along with overall personality to make for a wonderful office culture where everyone meshes well and actually cares about their fellow employees. I love going to work every day.
Cons
Company is growing rapidly so space is a bit tight at present but with plans to move and expand this shouldn't be an issue for much longer.