Comcast

Good salary, great benefits package, generally relaxed atmosphere. To its credit, Comcast is attempting to emulate other successful high-tech companies in order to attract more high-tech talent, but these efforts have been only marginally successful thus far.

Generally clueless managers with an old-school, rank-hath-its-privileges attitude.

Too many layers of management, much competitive friction between management empires within the company, difficulty in getting resources needed to do the job, and politics, politics, politics.

Political ninjas can and do advance rapidly here.

Comcast needs to separate its research and development from the rest of the company. Nobody should be allowed into this organization without a master's degree (at least) from a highly-reputable university.