Jamal coached his lifelong club, Al-Wehdat, under Iraqi head coaches
Akram Ahmad Salman (2008–2009) and
Thair Jassam (2009–2010) until he became head coach himself and transferred to coaching in Palestine. In 2013, Mahmoud led the
Palestine national team to their first ever win in the
WAFF Championship. He also led the Palestinian national team to the
2014 AFC Challenge Cup title, securing
2015 AFC Asian Cup spot for the first time in the team's history. On 10 September 2014, Mahmoud resigned as coach of the Palestinian team, bringing an end to his three successful years at the helm of the team just four months before the 2015 Asian Cup.
Statistics ==Honours==