Goalkeeping coach Hilario has resigned from his role at Chelsea and is set to be appointed to Thomas Tuchel's England staff, BBC Sport understands.
Hilario has spent 16 years at Stamford Bridge as a player and coach, over two spells.
Tuchel worked with the former goalkeeper during his time in charge of Chelsea and begins his tenure as England manager on 1 January.
It is understood Hilario was open to a job share but Chelsea were unhappy with that arrangement.
Martyn Margetson was England's previous goalkeeping coach but he left with former manager Gareth Southgate after Euro 2024.