High profile names from across the world of football have been keeping a close eye on events in Glasgow after the Australian was appointed the new Tottenham boss.
Fresh from a six-month stint with Championship side Watford, Bilic is ready to step back into the dugout after becoming the seventeenth manager to leave Vicarage Road in a little under eleven years.
Trigger happy owner Gino Pozzo breezed through another three head coaches last season alone.
But a failed push for promotion with the Hornets hasn't deterred the Croatian legend.
Having previously managed in the Premier League with West Ham and West Brom, as well as Turkey's Super Lig with Besiktas, a move to the Scottish champions would be of serious interest to well-travelled Bilic.
READ MORE ON CELTIC
Ange Postecoglou turned down contract extension but had heartfelt message for Celtic fans
Ex-Fulham star and Kane replacement - Celtic stars who could follow Postecoglou to Spurs
Having nurtured a golden generation of Croatia's stars from their Under-21's to the senior ranks, the former national team boss has plenty of experience at the highest level of the game.
And Bilic is reportedly keen to add Scotland as his next destination as the search for Postecoglou's successor heats up.
One source confirmed, "Of course, Slaven would be very interested in the Celtic job. They are a massive club with a fantastic tradition and history. These are things that are very important to Slaven.
"As a player at Everton, he was teammates with lots of Scottish players and knows a lot about Scottish football. He knows all about the intense rivalries and has been part of many derbies in football, in London, Moscow, Liverpool, and Istanbul.
Most read in Football
Tottenham kit launch to provide major indication about Harry Kane's immediate future
How to watch West Ham vs Fiorentina for FREE in Europa Conference League final tonight
Leeds owner Radrizzani 'agrees' to terms of sale to San Francisco 49ers investment fund
Premier League duo offered lucrative contracts to join Ronaldo and Benzema in Saudi Arabia
"His passion as a player and a coach is a good fit for the Celtic job."
He achieved cult status among the West Ham faithful, returning to Upton Park as manager nearly two decades after starring at the heart of the Hammers defence.
During his managerial spell with the east London outfit he set a Premier League points records.
Current Irons boss David Moyes has also been touted as a potential Postecoglou replacement, while Brendan Rodgers, Graham Potter, and Manchester City assistant Enzo Maresca find themselves featuring prominently with bookmakers.