Pros
Technical Community : The best thing about OT for technical staff is the culture of sharing and helping of the internal technical community. This small town helpfulness has been retained despite the cons of rapid growth and has become an entrenched characteristic that makes OT as good a place to work as it is. Mobility : Offices in CA, US, UK, DE, CH, AU and elsewhere are not just sales/admin offices, but also contain quite a lot of services and through acquisitions, some dev and support as well. It is definitely possible to start in one office and travel to other countries with OT. This is one huge benefit of growth that is hard to find in smaller companies.
Cons
Reorgs : Major reorganizations may happen as much as twice per year. These disrupt teams who have become cohesive and efficient. Layoffs : Growth by acquisition sometimes results in layoffs that appear to be designed to not take into account the performance and value of the individuals who are laid off. This causes problems in filling gaps and could lead to an unintended dilution of talent.