Nazarii Kovalenko
Private message 
Kyiv,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: fluent
English: intermediate
CV
Middle Full-Stack Developer
Over 5 years of experience in web development. I specialize in creating scalable solutions: from high-load e-commerce platforms to complex ecosystems with AI integration.
My services: Creation of websites of any topic and complexity: Landings, online stores, forums, etc.
Development of both backend and frontend parts
AI integration
Editing and support of existing websites, design of additional elements, content management (text and photos)
Writing scripts and plugins for websites, creation and connection of forms, API interaction
Development of Telegram bots, integration between websites and Telegram bots
I deliver high-quality work quickly and without missing deadlines. I guarantee clear communication at every stage of development.
Tech Stack:
JavaScript / TypeScript
C#, Python
React, Next.js
Redux / Redux Toolkit
HTML / CSS / SCSS
Tailwind CSS, Material UI
Node.js, Nest.js
SQL, TypeORM, Prisma
Elasticsearch
Figma (Design)
Tools & Infrastructure:
Docker, Linux
AWS
Git / GitHub, JIRA
Leaflet, DevExtreme, amCharts
Skills and abilities
Programming
Design & art
Services
- Online Stores & E-commerce
- Payment Systems Integration
- Tuition
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Website Development
from 2 USD for hour
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Website Maintenance
from 2 USD for hour
Portfolio
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Search engine ShatGPT 4, puppeteer
Web Programming
implemented Amazon product search system using ChatGPT 4
NodeJS, openai, nginx, puppeteer
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Website for Politics
Web Programming
Site-biography of Ukrainian politics, multi-language and multi-page.
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Website for the author of the book
Web Programming
A website for the author of the book, for quests for the summary of the answer.
Realised back and front, as well as a deploy on the VPS server
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Costume Calendar
Web Programming
Implemented a promo page with a cast calendar ( web developer's test task )
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Testing for a Fullsteck Developer
Web Programming
The test task of the developer. Implemented a CRUD application with a database and a NodeJs backup
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Telegram Bot (Server Manager)
Bot Development
Telegram bots to track server visits + statistics
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Website for Tickets
Web Programming
Lottery for Tickets
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68 USD Crypto Tracker and Calculator
Web Programming
They were performed from zero design and site development to track the prices of cryptocurrencies in real time. Also was implemented the functional registration of the user, personal cabinet and calculator for crypto.
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The personal website
Web Programming
The personal website of the web developer.
Created a layer design and deep web application.
Reviews and compliments on completed projects 11 1
30 March 2024
68 USD
Website development - funnel
I was fortunate to work with Nazar and I couldn't be more pleased with the experience. The freelancer not only provided high-quality work, exceeding my expectations, but the process of discussing my project with him was incredibly pleasant. He approached our communication with openness and a spirit of collaboration, without a hint of arrogance, which made the whole process smooth and enjoyable. Based on this experience, I confidently look forward to continuing to use his services for my future projects. I highly recommend to anyone looking for top-notch expertise in programming combined with professional and easy communication collaboration.
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26 January 2024
68 USD
Boot-Graber for Telegraph
made clearly and in time. Maximum feedback and loyalty to the customer. He counted all his desires and megaprofessionally engaged in life a difficult task!
26 November 2023
169 USD
Boot telegram, grabbers, chat GPT
The work is done in time and responds quickly.
28 October 2023
45 USD
Writing API for interaction with Prozorro
The project is completed, all quickly and quality.
10 February 2023
113 USD
Co-working for integration with ChatGPT
The work is done in time, 100% at TZ.
Thanks and I recommend!
| Personal | Response review
5 February 2023
23 USD
Правки до бота
Як завжди швидко та якісно виконана робота
Рекомендую!
| Personal | Response review
4 February 2023
23 USD
Бот для роботи з ChatGPT
Дякую за добре виконану роботу по інтеграції з ChatGPT
Рекомендую фрілансера!
| Personal | Response review
3 February 2023
79 USD
Calculator for the site
Проект не виконанний. Не має можливості чекати. Фрілансер чотити дні не виходив на зв'язок.
3 February 2023
34 USD
Site integration with ChatGPT by API
Відмінна робота, згідно ТЗ, здана на день раніше.
Рекомендую!
| Personal | Response review
1 February 2023
23 USD
Banner Generator for Articles
Perfect work, timely and on time.
Recommended by Freelancer
30 January 2023
11 USD
Processing the bot on ChatGPT
Everything according to TZ and timely
I recommend it!
| Personal | Response review
27 January 2023
45 USD
Automated work with ChatGPT API
Very pleased with cooperation, received more than expected and timely!
| Personal | Response review
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Seismological network of Ukraine
338 USD
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Urgently! The parser for prom.ua is broken, the ads are not falling into the CRM.
338 USD
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Website creation
226 USD
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Copying a custom configurator based on a third-party website
609 USD
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Bus ticket booking project
23 USD
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Layout and installation of new pages according to the ready design within the existing website
29 USD
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Landing for Kite Station
25 USD
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Refine the project written in JS, Node, SQL.
30 USD
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Website development
226 USD
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Create a web interface based on the ReactJS template
25 USD
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