Arm

Great environments to work in, feels like a Google or Amazon

Good people team, managers really care about careers and nurturing

The culture is interesting - see cons also! - people are encouraged to try new things and collaboration is essential, it's a fun place to work, everyone is engaged and inclusive.

Competitive salary

Good non salary rewards (a FlexPot of 4.5k to spend on health, finance makes it easy to join the gym!)

Very easy to move between departments

Getting things done across and sometimes within groups requires a lot of energy, and project management and commitment seem to be lacking in some parts of the organisation.

I think this is part cultural as people can be easily distracted and projects are not well defined or funded.

Make sure the basic needs of the groups are supplied as a rock solid service, and platforms, IT, network, people, training, and help with adopting new methodologies such as agile and project management should all be much better organised for a big company like this.