Костянтин
Backend Developer
- Age:
- 21 years
- City of residence:
- Kyiv
- Ready to work:
- Kyiv, Remote
Contact information
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You can get this candidate's contact information from https://www.work.ua/resumes/19172430/
Work experience
No work experience.
Education
Європейський Університет
Факультет Інформаційних Систем і Технологій, спеціальність Комп'ютерні Науки 122
Higher, from 2022 to 2026 (4 years)
Knowledge and skills
- TypeScript
- JavaScript
- Node.js
- Next.js
- NestJS
- Express.js
- REST API
- PostgreSQL
- MongoDB
- Redis
- TypeORM
- Prisma
- Jest
- Supertest
- K6
- Playwright
- Git
- Docker
- Postman
- Modular Monilith
- Здатність до навчання
Language proficiencies
English — average
Additional information
Summary
Backend Developer with no commercial experience, but hands-on experience building web applications using TypeScript, React, Next.js, and NestJS. Experienced in REST API development, PostgreSQL, MongoDB, and automated unit, end-to-end, and load testing. Familiar with Feature-Sliced Design (FSD) and Modular Monolith architecture.
Projects
E-Orenda
Team project · Invoice automation platform
- Developed and maintained a Next.js application, implementing new features and fixing bugs.
- Built responsive user interfaces and collaborated through Git, code reviews, and team discussions.
- Wrote and maintained Jest unit tests, verifying new features and bug fixes.
- Worked with MongoDB and contributed to the existing codebase.
Stack: Next.js, React, TypeScript, MongoDB, Jest, Git
Backend Performance Optimization
- Designed and implemented a REST API using NestJS and PostgreSQL.
- Improved application performance by integrating Redis caching.
- Developed automated unit and end-to-end tests with Jest and Supertest, ensuring API reliability.
- Created load-testing scenarios with k6 and improved application performance by integrating Redis caching.
Stack: NestJS, TypeScript, PostgreSQL, Redis, TypeORM, Jest, Supertest, k6
Patriot Shop
Desktop e-commerce application
- Developed a desktop full-stack application using Electron, React, and Express.js.
- Built REST APIs for authentication, products, categories, and order management.
- Implemented role-based authorization and an administrative dashboard.
- Developed end-to-end tests using Playwright.
- Worked with PostgreSQL using Prisma ORM.
Stack: Electron, React, Express.js, PostgreSQL, Prisma, Playwright
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