Hassan-Hussain, a member of the Chartered Institute of Marketing, had previously held positions with rival print managers HH Print Management, Communisis, Mailcom and Olwen Direct Mail.
He was latterly senior project manager at HH Print Management, where he was responsible for project managing global contracts in the EMEA region.
Etrinsic head of sales Dan Birks said: "Farooq's wealth of experience - both in the UK and internationally - will make a major contribution to the ongoing development of our client services operation."
Hassan-Hussain added: "Etrinsic has an outstanding reputation within the industry and a strong ethos for customer care. I am looking forward to building even further on the company's success."
Shirley, Solihull-based Etrinsic is part of the Chicago-based print manager InnerWorkings, which has targeted revenues of $450m (£272m) in 2008.
Etrinsic adds Hassan-Hussain as client services manager
Print management and marketing outsource specialist Etrinsic has appointed Farooq Hassan-Hussain as client services manager.