Sinkevych is a film producer, festival manager, founder of JS Films, who has worked as general producer of Odesa International Film Festival and for a distribution and production company Arthouse Traffic. Julia has also co-produced a documentary film Close Relations by Vitaliy Mansky (2016), Heatsingers (2019) by Nadia Parfan, Lucky Girl by Marysia Mikitiuk (in postproduction), Lesya by Nana Janelidze (in pre-production)

Born in Kyiv, Ukraine, Marina graduated Karpenko-Kary National University of Film, Theatre and Television (Film Department, specialty: director) in 2004. She worked at the experimental theater School, where she studied the methodology of working with non-actors. She completed a 6-month ARCHIDOC program for documentary filmmakers at the French film and television school La Fémis. Her scripted feature debut Falling (2017) received several awards at the international film festivals and 3 awards at the National Film Awards Golden Dzyga in 2018. In 2021 she directed a TV period drama Kawa z kardamonem (STB). She writes scripts for other directors as well.