For men, a suit and tie would be recommended.
Answered - Restructuring Associate (Current Employee) - London, Greater London
Smart appropriate attire.
Answered - Administrator (Former Employee) - Leeds
Suit and tie.
Or casual whilst looking smart (possibly add a nice coat).
Answered - Tester (Former Employee) - Canary Wharf, Greater London
Answered - Senior Analyst - Facilities Technology. (Former Employee) - Canada Square, Canary Wharf