PL/SQL Developer, ETL DeveloperDesigning and implementing data loading and data modernization algorithms, methods, and structures from various systems:- the Automated Information System (AIS) "Tax Calculation" / (АИС) "Расчёт Налогов", - Belstat / Белстат, - AIS "Control Work" / АИС "Контрольная Работа",- and the Social Security Fund (FSZN) / ФСЗНusing ETL processes for the Information and Analytical System of the Ministry of Taxes and Duties of the Republic of Belarus / Информационно-аналитической системы Министерства по налогам и сборам Республики Беларусь (ИАС "Расчет Налогов").BI Developer- Developing and implementing an analytical system for the Ministry of Taxes and Duties of the Republic of Belarus using Oracle BI. This included creating Dashboards, Analysis and Interactive Reporting, Published Reporting, and MapViewer. - Configuring roles, privileges, security policies, and reporting distribution systems. - Implementing analytical models of: Ministry of Taxes and Duties / МНС, the International Monetary Fund (IMF) / МВФ, forecasting and risk assessment models.- Creating information and analytical modules "Risk assessment", "Managers dashboard", "Revenue analysis", and "Debt calculation".- Data integration into interactive maps.

Development of a Gaming Application, including:- Database Architecture Design (initial Database setup, Table structure creation, query optimization, etc.)- Development of a REST API System (Swagger integration, EndPoint creation for data upload, select, etc.)- Integration of Third-Party APIs into the system (Google API)- Development of algorithms for a Gaming ApplicationTeam Lead responsibilities:- Sprint planning, task distribution, estimating workloads, and reporting.

Development of a Marketplace with Web3 Integration, including:- Database Architecture Design (initial Database setup, Table structure creation, query optimization, etc.)- Utilization of Migrations and SQL Fixtures for Preloading Database Data- Development of a REST API System (Swagger integration, EndPoint creation for data upload, select, etc.)- Integration of Third-Party APIs into the system - Implementation of Microservices Architecture to improve system fault tolerance.- Utilization of Websockets for interactions between microservices- Development and implementation of solutions for cryptowallets and File Exchangers systems.- Integration of a Message Exchange System (Nats)- Development of reward calculation algorithms for airdrop contractsTeam Lead responsibilities:- Sprint planning, task distribution, estimating workloads, and reporting.

Support and Maintenance of an IBM Notes/Domino Mail Server in an International Company.Responsible for maintaining and servicing the mail server.Administration of MS SQL Databases.Administration of Windows Server, Active Directory, DHCP, Print Server, DNS.