. FIRST SOURCE FEDERAL CREDIT UNION. POSITION DESCRIPTION. Position Title. Member Service Representative I. Department. Member Services. Reporting To. MSR Supervisor. This position is 25 hours per week including every Saturday. Hours of operation. Monday-Wednesday 9:00am-400pm. Thursday-Friday 9:00am-5:00pm. Saturday 9:00am-12:00pm. POSITION SUMMARY. The primary function of this position is to process member transactions in an efficient and accur...