The 31-year-old brings a nine-year stint on Merseyside to an end as he seeks out a new challenge in the Saudi Pro League.
Robinson said his farewells to staff at Kirkby last week and his appointment is expected to be confirmed by Al Ettifaq shortly.
He most recently served as Barry Lewtas assistant coach with the clubs U21s team but has held a number of other roles since joining the Reds from Swansea City in 2014.
That included coaching the U16s and also serving as an analyst with the first team for a brief period.
Robinson becomes the latest member of academy staff to be poached by Liverpool legend Gerrard following analyst Ray Shearwood.
Tommy Culshaw and Jordan Milsom, who both previously worked for the Reds, are also on his staff.
9 years of special people, memories that will last a lifetime and a club like no other Thankyou to all the players, staff and everyone associated with the club for everything! YNWA ?? pic.twitter.com/WK32g9DRVN
Jonathan Robinson (@jtrobbo92) November 13, 2023