- Standardization and systematization of development process for a team of 7 people, establishing communication and cross-reporting with the marketing department, writing plans.- Development process management: architecture design, selection of necessary technical solutions; development and writing of technical documentation; code review and unit-tests writing; checking the completed work and writing the final reports.- Legacy code refactoring: code optimization, performance improvement.- Creation of 2D and 3D design solutions using Adobe Photoshop, Blender, Figma.- Deploying applications using Docker.- Scrum / Kanban work, using Jira / Taiga.- Planning sprints, development and marketing team loads, quarterly plans.- Negotiating requirements with the business, agreeing on final requirements.- Development of MVP solutions, market analysis.- Sales forecasting for the business, risk and cost minimization.- Participation in the hiring of employees.

- Used Scrum / Kanban software development methodology.- Developed applications using Spring MVC, Hibernate to implement RESTful web services.- Performed CRUD operations using Hibernate Criteria API.- Developed user validation using Spring Security / Keycloak.- Developed chats using WebSocket.- Developed Liquibase scripts to maintain database schema changes.- Deployed applications using Docker container.- Developed documents generation using Java File/IO.- Wrote documentation (or used Javadoc documentation generator), design specifications, and code style guidelines.