- Developed back-end services for web and mobile applications usingNestJS and PostgreSQL.

- Deployed the application to AWS: configured EC2 instances, set up CI/CDpipelines, implemented file storage using AWS S3, and monitoredPostgreSQL databases hosted on AWS RDS.

- Migrated the database from MySQL to PostgreSQL, including dataparsing, transformation, and validation to ensure data integrity.

- Development of a CRM system for managing customers, orders and payments using NestJS, TypeORM and PostgreSQL

- Implemented loading, processing and saving of files including user avatars using MinIO and Sharp.

-Configured REST API, extended data validation, optimized queries and database structure.

- Participated in debugging, testing and integration of new modules, ensuring system stability and performance.

- Building react applications using Turborepo, Nextjs, Nestjs, Prisma ORM, tPRC, expo, mongoDB.

- Initiated authorization, created and configured middleware, created and configured models in PrismaORM.

- Creating Pixel Perfect, responsive, webpages based on Figma grid layout, design using HTML, CSS, SASS, and JS.

- Handling code reviews, investigating, reproducing, and fixing bugs.