Its a mega corp in terms that it is comprised of several large enterprises. If the "arm" I worked in was spun off as its own corporation it would be Fortune 30 by revenue. Worldwide I think we have about 40k of the 270+k total employees in the corp group. The group as a whole is in the Fortune 10 and serves the health care industry.
My part of the corp is all software. Product development both "commercial enterprise" grade to individual consumer facing. This involves plain old software development, data science, infrastructure as well as R&D (some basic, mostly emerging tech)
Out of all the places I've worked, two of them were/are huge (250K+ people). For the first, I was in the business side of things as a data scientist/software person, and now I'm in the the software org as a data scientist.
In theory I should have been doing the same job; using code to to address business problems using data science. Both companies were investing heavily into cloud and analytics, and were theoretically moving in the same direction.
My experience in the non-software org was a nightmare because nobody understood what it meant to build or engineer anything. Now that I'm in software org of big company and I'm MUCH happier because people actually understand what it takes to solve a technical problem.
Lesson: if you are a software person who likes to be technical (coding or not), work in a the software org of a big company!
My part of the corp is all software. Product development both "commercial enterprise" grade to individual consumer facing. This involves plain old software development, data science, infrastructure as well as R&D (some basic, mostly emerging tech)