Mark O'Brien joined QBS in 2017 as the Accounts Receivable Specialist. Mark went to Central Connecticut State University where he received his Bachelors in Business Administration. He has over 20 years’ experience and has held several office manager roles throughout CT, MA, and RI. One of Mark’s latest passions include renewable energy. Mark has worked in various fields such as human resources, payroll, training, and orchestrated several trade shows for a National Solar company before joining the QBS team.