Distant and disengaged upper management and HR.
Benefits are thin on the ground - private pension, cycle to work scheme, free flu voucher, free eye test, that's about it.
Pay only increases by 3.5% annually, usually lower than inflation and much less than the minimum wage increases, so it's a real-term pay cut year on year with no option to renegotiate salary.
There's no dedicated training department, which is unusual for such a large company. You will be trained by your colleagues and once established you will be expected to train new starters.
No unions recognised and no shop stewards.
Career progression opportunities are very rare.
In several years there have been 3 or 4 waves of redundancies, periodically the company makes budget cut-backs and re-organises staff and duties to seek efficiencies.