Tobias French was about to get the Tube home when a stranger attempted to push him into the path of an oncoming train.
His attacker was found guilty of attempted murder and is due to be sentenced later.
Now Mr French, who lives in Bracknell in Berkshire, is warning other commuters to be aware when they are standing on the platform edge.
Dramatic CCTV pictures of the attack show how close he came to being hit. A second commuter, Sir Robert Malpas, was pushed on to the tracks minutes later and suffered a broken pelvis and head injury.
Paul Crossley, 46, of Leyton, east London, was found guilty of two counts of attempted murder at the Old Bailey in October 2018.