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Work experience Ultimate Billing, Inc | March 2016 - August 2019 • Head of Billing Department • Organizing work processes • Assessment of employees performance • Training and supervising employees Freelance| 2014 - March 2016 • Java desktop developer • Backend and frontend developer Freelance| September 2019 - present • Backend and frontend developer Recent projects • Elaboration of KPI system for billing specialists Description: used by supervisors to solve the...