Havas Group Media’s Socialyse bolsters team with new hires from iProspect and Mindshare. Sebastian Redenz and Hannah Rainbow join as head of paid social and senior operations manager, respectively.

Socialyse, Havas Group Media’s social agency, has bolstered its team with the appointment of Redenz and Rainbow. Redenz joins Socialyse from iProspect, where he held a similar role, overseeing the agency’s paid social team across three offices, managing relationships with all key media owners and developing campaigns for clients including Microsoft and Calvin Klein.

In his new role, Redenz will oversee all paid social activity as part of Socialyse’s 360 degree social offering. Reporting to Sarah Treliving, Havas Group Media’s chief digital officer, Redenz will lead a team of 25 paid social specialists across planning, trading, analysis and operations.

Rainbow, former Mindshare head of campaign management, has joined Socialyse as senior operations manager. Rainbow set up and led Mindshare’s campaign management department, providing support for the agency’s AV, digital, print, search and social teams. She also worked closely with GroupM to help roll out a new media booking system for all clients across the agency.

In her new position, Rainbow is tasked with driving operational effectiveness in order to help Socialyse to continue to deliver innovative work for clients.

Treliving says, “I’m delighted to welcome Sebastian and Hannah to the Socialyse team. Sebastian brings proven ability to drive innovation, with deep expertise in delivering paid social at scale, while Hannah has the ability to manage major projects, with a rare combination of a love of process and great people skills.”  

Rainbow adds, “By bringing all its agencies together, Havas allows specialisms to thrive while fostering collaboration. My new role on the Socialyse team brings together all the things I love, and I can’t wait to get stuck in.”