About SmartPay Payroll. SmartPay Payroll is an online payroll service provider for small business. Position. Payroll Services Representative. As a Client Services Representative, you represent SmartPay as the main point of contact for our clients. You communicate with clients daily to provide setup, training, support, issue resolution, and troubleshooting related to small business payroll processing. What you'll do. Talking to clients on the phon...