The spreadsheet bank. Post-LBG, managing processes informally using spreadsheets was acceptable for while... but 4 years down the line, really? It's just amateurish for multi-million pound organisation to not have proper systems in place. Annual leave is tracked via the 'back of cigarette-packet' arrangement, and the leavers the process is a spreadsheet, that generates an email saying "Jane Doe is leaving". It's beggars belief. There are small high street traders with employees you can count on one hand who are more organised.
Internal IT systems are simply not fit for purpose - literally, you aren't provided the tools to do your job properly. They threw out the working LBG laptops for shoddy new ones, on system that frequently 'disconnects' and crashes. Not enough desks in the office.
Salary is incredibly low for their City of London location - creating serious recruitment/retention issues. The whole 'benchmarking' process is broken: a position can be an easy ride in one department, whereas in another team colleagues are bled dry and burnt out - yet both are the same grade and salary. As a result, key talent regularly leaves for greener pastures when they are simply poached by competitors.
The parent company Sabadell essentially pulls all the strings. If they say 'jump', and your reply is anything other than 'how high?' your work life will be made difficult.
The previous point means a culture of bullying and nepotism has taken firm hold of the bank. Managers sabotaging their peers in petty ways, to make each other look bad... all at the expense of the bank and ultimately customers.