Ibrahim, who held the position of director of digital strategy at The Frameworks, brings more than 20 years of experience to the new position, which Collider has created as a result of its growing digital arm.
He has worked across the areas of digital marketing and activations with brands including IBM, Toshiba, Nokia, Ford and Tesco.
Ibrahim's key responsibilities at Collider will include driving the agency’s digital focus at a strategic level as well as developing its teams so that they can maximise digital opportunities within client campaigns.
The agency has also appointed Luke Donaghey as senior designer, who joins from Radley Yeldar and Velocity Partners.
Erica Malone, formerly of Steel London has joined Collider as account manager, where she worked with clients including Greggs and Breakthrough Breast Cancer.
Anton Jerges, managing director at Collider said: "Onur is truly passionate about understanding how the role of digital affects consumers and modern living.
"As a result, he’s got a great handle on what we as an agency can do to further assist our clients and drive our digital team forward. With a successful track record we’re excited about Onur joining us and the plans ahead."