Deputy Secretary Razanur Huda issued the circular on Tuesday afternoon.
Two posts of Bangladesh Bank fell vacant after the cyber heist of $81 million in February.
In one of the biggest cyber heists in history, hackers tried to steal nearly $1bn from Bangladesh Bank’s account.
They managed to transfer $81m to four accounts at Manila’s Rizal Commercial Banking Corp, which was then laundered through the city’s casinos, investigators said.
Only about $18m of the fund, including $2.7m frozen by the Philippines’ casino regulator, has been accounted for.
A Philippine court in September adjudged that Bangladesh Bank was the rightful owner of around $15 million surrendered by casino boss Kim Wong and his Eastern Hawaii Leisure Company.