LONDON—Zeno Group has hired Rachel Vrettos (pictured) as director, healthcare, for its UK operations. Vrettos joins from healthcare agency Red Door Communications, where she led programs for clients including Astellas, Bayer Schering, Galderma, GSK and Sanofi Pasteur MSD. Vrettos spent eight years at Red Door, having begun her career at Harvard Health.

DOHA—Jeff Chertack has been appointed regional corporate practice director for Memac Ogilvy PR’s Middle East and North Africa region. Most recently, Chertack served as managing director of Ogilvy Public Relations in Brussels. He has also worked in the firm’s Washington, DC, office. Chertack’s move follows the appointment of Ema Linaker to the regional consumer and social media practice position, based in Dubai.

LONDON—Global social media agency We Are Social has hired Stephen Rust as chief operating officer. Rust will be responsible for driving We Are Social's growth globally, as well as building a team and infrastructure to support the agency's continued expansion plans. He was previously group CFO at The Search Works and subsequently, group CEO at i-level. The agency has also promoted senior account directors Aisling McCarthy and Clem Hancox to group account director. McCarthy manages the firm’s biggest client, adidas, while Hancox oversees a portfolio that includes PG Tips and Heinz.

LONDON—Zopa, a leading peer-to-peer lending site, has appointed Brands2Life consumer, digital and public affairs. Brands2Life will help Zopa target the financial sector, positioning the company as an alternative to the major banks, and will focus on opinion makers as Zopa seeks a larger role in discussions about the banking and financial sectors.

LONDON--College Group has been hired by Brunel University, for a two-stage stakeholder audit and brand review project. Following a competitive pitch process, Brunel University chose College Group because of the team’s in-depth education sector experience as well as its stakeholder engagement and branding credentials. Phase one has already started with an extensive interview process covering internal, external, focus groups and alumni surveys. Findings from phase one will then be used to develop brand positioning and messaging recommendations in phase two.

JENA—Britta Maria Schell has been named head of corporate communications and marketing and press officer at integrated optoelectronics group Jenoptik. She will be responsible for press and public relations, internal communications as well as for brand management, reporting to Jenoptik CEO Michael Mertin. Schell's professional career includes positions in companies of the E.ON Group, IVG Immobilien, and swb.

LONDON—Former Weber Shandwick director Tali Kramer has joined College Hill's corporate practice as partner. Kramer leaves Weber Shandwick after 13 years, having originally joined as a graduate trainee and rising to become a senior member of its EMEA technology practice.

ISTANBUL—Ceyda Aydede, chief executive of Global Tanitim and subsequently Hill+Knowlton Strategies for the past 25 years, is leaving the firm to serve as the chair of the board of the Sev Foundation, which provides services in education, health, and in the field of publishing.

LONDON—Social network has appointed technology PR agency EML Wildfire to promote its UK launch. Using its consumer expertise, EML Wildfire will drive campaigns and messages that directly appeal to the student population.

LONDON—Liberty Comms, the specialist technology communications consultancy, has been appointed by specialist media investment and advisory firm IBIS Capital and education technology company Edxus Group to promote the launch of EdTech Europe, a one-day summit to be held at the London Business School to address industry and investment trends in education technology and e-learning.