The man who plunged to his death at JP Morgan's London HQ has been named by the firm as Gabriel Magee.
Mr Magee was found on the ninth floor of the 33-storey Bank Street building and was pronounced dead at the scene.
He had been with the company since 2004, rising to become vice president in an IT department.
A JP Morgan spokeswoman said: "We are deeply saddened to have lost a member of the JP Morgan family at 25 Bank Street today. Our thoughts and sympathy are with his family and his friends."
London Ambulance Service and London Air Ambulance were called to the incident shortly after 8am and subsequently cordoned off parts of the building.
No arrests have been made and the incident is being treated as non-suspicious at this stage while officers from Tower Hamlets investigate the circumstances.
Although there are reports that Mr Magee fell from the 500ft roof, the bank has so far refused to specify which floor he fell from.
A JP Morgan spokeswoman said earlier it was "reviewing a very sad incident at 25 Bank Street this morning."
Staff also reflected the sombre atmosphere at the bank.
Speaking to IBTimes UK, JP Morgan employee Steve Marchant, 39, said: "There is a sad, heavy atmoshpere here this morning.
"People claim they saw the fall, which must have been traumatic for them."
A worker in a building next to JP Morgan's office tweeted:
"JP Morgan man jumped from building next door. Can see medics tending to him from our office window in Canary Wharf. Thoughts with his family"
"It's not a nice view from my building. The body is on the rooftop of level 9. So sad."
"The body is still lying there though. We are baffled as to why."