Golmohammadi, 53, had been without a team since parting ways with the Tehran Reds in January.
An ex-boss at Iranian top-flight sides Zob Ahan and Naft Tehran, Golmohammadi came close to taking over from Spanish Paco Jémez in Tractor in the closing stages of the newly-finished season but a deal eventually fell through.
The Iranian center-back in the 2006 World Cup enjoyed a glorious four years on Persepolis bench, steering the Reds to three top-flight crowns – including a league and cup double in his last full season in charge – as well as the AFC Champions League final in 2020, before a falling-out with the club CEO Reza Darvish and long-term injuries to key players led to a run of inept results and performances in the previous campaign.
Having had four coaches on the bench on the bench over the past 12 months, Foolad will be looking forward to a fresh start under the new manager, who played for them for three seasons in the early 2000s.
A two-time champion since the Iranian Pro League was introduced in 2021, Foolad finished 11th in the 16-team table last term – courtesy of seven wins and 15 defeats in 30 games – with the club having a Sasan Ansari’s late winner at Nassaji on the final day to thank for avoiding relegation.