● Monitoring and handling complaints and incidents.● Interaction with UCRF and Operators involved in the operation ofthe MNP service to provide quality services to subscribers.● Making changes to the production environment.● Interaction with suppliers of software and hardware solutionsthat are part of subsystems for the quality functioning of systems.● Testing new versions of information systems.● Develops instructions and procedures for working with Systems,Organizes testing with external systems.● Developing proposals for changes to existing systems based onthe analysis of modern technologies, business needs and existingarchitecture of the unit systems, and the results of monitoringsystem errors

● Investigating current issues of customers (collection and analysis of incoming problems and issues, localization and communicating recommendations for elimination)● Advising the customer on use of system functionality● Participation in projects implementation● Support database applications● Engaging with application developers / testers for gettingrequired assistance● Searching and fixing bugs

● Support of billing systems● Searching and fixing errors in the Oracle database● Writing complex queries to update a large amount of data

● Installation and maintenance of computer and office equipment, office equipment● Installation, configuration and updating of office and application software● Ensuring the operability and security of the company's network.● Support of enterprise accounting system● Support and administration of database servers● Working with Firebird databases (creating stored procedures, triggers, tables)● Creating SQL-based reports● Support and completion of independent reports based on SQL.● Support for Java products