Terrible management, many of the managers have had little to no experience as managers, are given no training and have no idea what they are doing when it comes to running their teams.
It's common for managers to use their teams purely to do the less than exciting day to day stuff they don't want to do while they hoard the interesting projects to themselves, limiting any room for career growth. As a result it's not uncommon to find staff who have no work to do while their managers are perpetually busy.
It can take days or weeks to get a reply from your direct manager, or the emails are just ignored.
Some managers are bullies who openly abuse their staff, which is tacitly supported by upper management and ignored by HR.
Getting information about the projects being worked on more widely is nearly impossible, management like to break every project into little tasks which they distribute widely meaning no one is exactly sure what they are working on or why. Again making it hard to feel like you've done anything useful with your time.
Management do not trust their staff, even if manager has less experience than their staff in a subject. Refuse to delegate systems access, responsibilities, or information and consider everyone but their personal circle to be a threat.
Performance reviews are often delayed without reason and no actual feedback provided when they finally come. You might get one chance every 18 months to discuss performance or career goals. No support for career advancement is offered.
Lastly, directors pushing staff to post glowing reviews on sites like Glassdoor...
