Nimer started his career as a child actor working for the RSC, appearing on film and television from a young age.

After writing for stage and screen, winning the Sir Peter Ustinov Television Scriptwriting Award at the International Emmy Awards, he directed his first short film BAGHDAD EXPRESS for the UK Film Council featuring Riz Ahmed, which screened at festivals worldwide, then went on to win the UK's biggest short film competition, the Virgin Media Shorts Grand Prize, for his short film TOUCH, awarded by Shane Meadows and judged by David Tennant.

In 2016, he won a coveted place on the BBC New Directors Scheme, and he has gone on to direct several blocks of DOCTORS and has been named on the BBC’s New Talent HotlistHe is currently shadowing director Tom Vaughan on Mike Bartlett's PRESS for Lookout Point as part of Directors UK's High End Drama scheme.

His latest short film LONDON TOMORROW (BFI/Virgin Media) will have its world premiere at Bristol's Encounters Film Festival.