Pros
AT&T would be a great place to work if it weren't for all of the cons (see that section). In general, the people below Director level are all really smart, incredibly helpful, and dedicated. Plus, AT&T has very generous pay and a really impressive employee development program, with a ton of free courses and tuition reimbursement for those pursuing advanced degrees in programming, data analytics, and other skills.
Cons
Oh, where to begin. First, AT&T is horribly mismanaged, and is the perfect example of the Peter Principle of promotion to inability. Their handling of both DIRECTV and HBO Max are prime examples of their incompetence. Since they took over DIRECTV has been destroyed by the cancerous Stankey, losing customers at a rate double that of other cable companies. while the HBO Max launch was such a dud it resulted in massive layoffs in the newly acquired Warner Media group. But the incompetence and mismanagement is nothing compared to the lies and greed of the top execs. And they do lie. Constantly. In every one of their pointless, stupid 'townhall' meetings top execs just lie. Some examples: After the 2017 corporate tax cut then CEO Stephenson said that AT&T would put the money toward employees and creating jobs -- only to have a round of massive layoffs a few months later. Then again a few months after that. And then again every quarter since, ultimately shedding nearly 50,000 jobs over three years. Execs promised to make DIRECTV their priority after the 2015 takeover (lie). Execs promised to expand low-cost internet service (lie). Execs promised to focus on promoting from within (lie). Etc etc etc. The biggest problem is that it's the rank-and-file employees who end up paying for all of the staggering incompetence, mismanagement, and lies by the top. Whenever there is any trouble there are layoffs at the 1st and 2nd levels, often affecting thousands or tens of thousands employees. But senior executives continue to rake in grotesque bonuses and double-digit annual raises, while those at the bottom get reamed. This place is toxic, and under the reign of that arrogant douchenozzle Stankey AT&T will only continue to fail and stumble and deteriorate.
