Incompetent leadership, no career opportunities. Managers contribute to a bullying culture and instigate one employee against the other instead of praising team collaboration. Internal tools have a 20-year-old code legacy and barely work these days. My workload quadruple on the last 2 years I was there and no salary adjustment or update on the role description. I was the top performer in my team and never got paid a full bonus, as I wasn't friends with the managers outside of work. Very unprofessional leadership. The benefits package changed in 2017 and low-paid workers got a cut of thousands of pounds in benefits that were never replaced.
