• Implemented new features in microservice-based MongoDB projects.
• Developed a reactive service using Spring WebFlux and Spring Security OAuth 2.0 implementing the LTI 2.0 standard.
• Designed and maintained CI/CD pipelines including automated testing and deployment.
• Created integration tests achieving ~90% code coverage and improving reliability.
• Closed ~120 tasks including new service development, third-party integrations, performance optimization, and bug fixing.

Contributed to the architecture and development of an educational platform using PostgreSQL, Telegram API, RabbitMQ, and GPT-based models.

• Extended a RESTful API using Java and Spring Framework to synchronize ERP data with the central repository, eliminating 100% of paper submissions and ensuring same-day data freshness.
• Implemented new ERP system functionality, increasing operational automation by 80%, report generation and payroll calculation for 5,000 employees.
• Led the on-time completion of ~90% of ERP automation projects.

• Developed software with a built-in data replication mechanism to distribute medical assistance efficiently.
• Enabled fast data collection from 10+ offices, reducing warehouse inventory verification time from several days to 1–2 days.

Created a Java application for automated upload and transmission of replicated data via the SMTP protocol from the accounting systems of 45 branches to the central system (Java, XML, SQL, SMTP, POP)

Developed software solutions for medical centers, humanitarian assistance, and payroll calculation. Processed over 250,000 patient visits and calculated salaries for more than 40 employees. (VBA, XML, SQL)

Process automatization. (C++, FoxPro, VBA, SQL)