Created user management systems in Java/Spring Boot, developed microservices infrastructure, and integrated with BVC and banks using Kafka and ActiveMQ. Developed scripts in Python and SQL, performed analysis, and improved performance.

Development and maintenance of Java systems, microservices, integration with AWS, Kafka, and PostgreSQL. Implementation of scalable solutions and data migrations.

Design and development of full-stack applications in Visual Fox Pro, Android, and Java (Spring Boot, Spark). Implementation of virtualized servers with VMware ESXi.

Full-stack development in Visual Fox Pro, Android, and Java. Web service implementation and version control with Git.

Design and development of full-stack applications for Windows and Android, Level 2 technical support, and software testing for digital security solutions.

Full-stack development in Visual Fox Pro, Android, and Java/Spring. Remote testing and technical support.