- Integrated 3rd party payment processing API into the sales system.- Implemented an isolated project launch in docker compose for convenient debugging and testing, wrote a how-to article.- Developed new functionality, fixed bugs.- Added unit tests, participated in code reviews.

- Optimized the code for the digital signature service, significantly improving its maintainability.- Successfully managed the transition of systems to a different time zone, minimizing risks and preserving business-critical information.- Implemented a new codebase management strategy, enhancing team efficiency and satisfaction.- Developed new features and refactored existing ones following clean code practices.- Conducted code reviews for junior developers.- Wrote documentation for both existing and new systems.

- Developed and refactored REST API backend systems using ASP.NET Core.- Participated in the development and maintenance of a distributed system utilizing the MQTT protocol and deployed on Azure.- Implemented and maintained load testing solution, which helped to identify system's bottlenecks.- Improved and fixed infrastructure scripts written in PowerShell.- Designed and developed a Slack bot using Node.js and TypeScript, simplifying feedback collection after employee interviews.- Took part in the development and refactoring of an internal company project using ASP.NET Core and React.

- Collaborated with another intern to develop a small CRUD microservice. Organized meetings and presented the final project.- Worked under the guidance of a senior developer on the development and refactoring of the company's main product.- Studied technical literature, passed knowledge tests, and executed test projects.