Development of computer programs according to customer needs under the MERN Stack. Remote and on-site support to company clients. Install, configure, and train administrative, payroll, accounting, and billing systems for offices, condominiums, stores, and restaurants; integrated with MongoDB, SQL Server and MySQL database managers. Development and maintenance of WEB applications. Installation of operating systems, servers and workstations

Development of several billing and inventory control systems for hardware stores, shoe stores and clothing and accessories stores with more than 100 installations in the last 2 years