Petr Cech will leave his role as technical and performance adviser at Chelsea at the end of the month.
The 40-year-old spent 11 years as a Chelsea player, winning 13 trophies, including four Premier League titles and the Champions League.
"It has been a huge privilege to perform this role at Chelsea for the past three years," he said.
"With the club under new ownership, I feel now is the right time for me to step aside.
"I am pleased that the club is now in an excellent position with the new owners and I am confident of its future success both on and off the pitch.