Zechariah Wong An Yi, 26-years-old, was sentenced to 26 weeks jail for criminal breach of trust and misappropriating $9,989.
Another 4 more charges involving forgery were also considered during his sentencing.
Wong, who was an OCBC Bank teller at the time, had taken money from a cash bag that he was given at the start of his shift meant for his teller drawer.
In an attempt to hide his illegal actions, he then forged the signatures of his father and a friend and made withdrawals from their accounts to replace the money that he took.
He then told a colleague about his actions on 28 November 2019, asking her to lend him #3,800 to replace the money, which she declined.
The issue was then brought up to their branch supervisor and following investigations, Wong was found to have taken a total of $9,989 between 1 October to 28 November 2019.
He would take a few hundred dollars from the cash bag to place bets on football matches.
Wong utilised the signature verification system of OCBC to access the signatures of his father and a friend, before forging their signatures to make withdrawals from their account without them present.
The court heard that his father and friend do not expect Wong to pay them back the money, and his lawyer, Mr Jason Peter Dendroff, revealed that Wong was being harassed by loan sharks.