Ihor Gromadsky
Offer Ihor work on your next project.
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Offer work 
Chervonograd,
Ukraine
12 days 14 hours back
available for hire
1 Safe completed
2 years back
1 client
2 proposals made
age 33 years
on the service 12 years
Rating
Successful projects
Average rating
Language proficiency level
Українська: fluent
English: intermediate
CV
Full-Stack Developer | CRM & SaaS Platforms | Next.js, Node.js, API
I am a Full Stack Developer with experience in building scalable web applications from frontend to backend. I specialize in developing modern, responsive, and high-performance interfaces using React, Next.js, HTML, CSS, JavaScript, and TypeScript. On the backend, I work with Node.js and NestJS, building REST APIs, implementing business logic, and integrating third-party services such as payment systems and external APIs. I have experience designing and managing databases using MongoDB and PostgreSQL, including schema design and query optimization. My skill set also includes: API development and integration (REST) Authentication and authorization (JWT, role-based access control) Payment gateway integration Multilingual (i18n) implementation Telegram bot development and integration Version control with Git and GitHub Deployment on Linux servers (Ubuntu) Nginx configuration and SSL (Let’s Encrypt) Performance optimization and debugging I follow modern development practices and have experience working in Agile teams, participating in planning, development, and delivery cycles. I focus on writing clean, maintainable code and building reliable production-ready systems.
Skills and abilities
Programming
Design & art
Services
Portfolio
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Custom Strapi CMS Platform
Javascript and Typescript
#strapi #GoogleSheets #PDF #api-development
Developed and customized a Strapi v5 CMS platform for educational project management and content administration. Created custom plugins and backend functionality, including PDF generation, short-link generation with sub-parameter tracking, and vacancy management tools. Implemented scalable admin workflows, API logic, and content management features to simplify internal operations and improve automation for non-technical administrators.
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Certificate Verification Platform
Javascript and Typescript
#strapi #Next.js #Tailwind CSS #saas #SEO
Developed a certificate verification platform using Next.js integrated with a Strapi CMS backend. Implemented functionality for validating issued certificates through unique identifiers and dynamically retrieving certificate data from the admin system. Built responsive SEO-friendly pages, API integrations, and administrative workflows for managing certificate records and verification processes.
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Enterprise CRM Management Platform
Javascript and Typescript
#websockets #React/TypeScript #DashBoards
Developed a complex enterprise CRM frontend from scratch using Next.js. Built a scalable admin interface with over 20 management modules for business operations and internal workflows. Implemented real-time features using WebSockets (chat), dynamic dashboards with charts and analytics, PDF data export functionality, role-based access control on the frontend, and deep integration with an external FastAPI backend. Focused on performance, modular architecture, and large-scale UI system design.
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Mustage Team – Affiliate Marketing Ecosystem Platform
Javascript and Typescript
#Next.js #Tailwind CSS #saas #SEO #Multilingual
Mustage Team is a large-scale ecosystem platform built for the affiliate marketing and traffic arbitrage industry. It combines multiple digital products and services into a unified system, including marketplaces for ad accounts, proxy services, creative production tools, educational content, and automation bots.
… The platform started as a simple service for selling advertising accounts and evolved into a full ecosystem that supports thousands of users across different tools and services.
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Mustage Study Platform
Javascript and Typescript
#Next.js #Tailwind CSS #saas #SEO #Multilingual
Developed a multilingual educational platform using Next.js with dynamic content management powered by Strapi CMS. Implemented responsive frontend architecture, API integration, SEO-friendly pages, and localization support. Built a scalable content management workflow that allows administrators to update courses, landing content, and platform sections directly from the admin panel without developer involvement.
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CREONIX – Video Creative Automation Platform for Digital Marketing
Javascript and Typescript
#Next.js #Nestjs #mongodb #Tailwind CSS #AI #saas
CREONIX is a professional platform for rapid creation and adaptation of video advertising creatives for digital marketing and affiliate campaigns. The platform allows users to generate hundreds of creative variations within minutes using 100+ templates, AI-powered GEO localization, and automated rendering tools.
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Website for a mobile RPG game
Javascript and Typescript
#React #node.js #Nodemailer #mongodb #wss #ssl
Development of a website from scratch according to the layout
Additional functionality (3D controlled animation) + admin panel
Raised server for interaction with the database and additional functionality
… Deployment on the server and
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Portfolio website
Website Development
My portfolio
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Automotive - Automotive parts
Website Development
The online store of car parts
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MIMIHO Restaurant and Hotel
Website Development
Site of the restaurant-hotel complex. HTML, CSS and JS
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The GooseTrack - powerful tool for task planning,
Website Development
The GooseTrack application is a powerful tool for task planning, workflow management, and personal productivity tracking. Add and manage tasks, mark them as completed, view your schedule, and analyze statistics to achieve maximum efficiency.
Technologies Used
React: Used for building user interfaces and creating components.
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Redux and React-Redux: Used for state management and integration with React.
Redux Persist: Used for saving Redux state to local storage.
reduxjs/toolkit: A set of utilities for simplifying Redux-related tasks.
React Router and React Router DOM: Used for routing and navigation between app pages.
Axios: Used for making HTTP requests to the server.
Formik and Yup: Used for creating and validating forms.
Styled Components: A library for writing CSS styles at the component level.
Recharts: A library for creating charts and diagrams.
React Modal: A library for creating modal windows.
React Slick: A library for creating sliders.
Moment: Used for working with dates and times.
Notiflix: A library for displaying user notifications.
Tailwind CSS: A CSS framework for rapid styling.
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The Web Studio
HTML & CSS
Website of the Web Studio
Reviews and compliments on completed projects 1
23 October 2023
11 USD
Implementation and optimization of React Router
Quality
Professionalism
Cost
Contactability
Deadlines
Fast and quality!
I hope to work together in the future.
| Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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React / Next.js Developer for Existing Platform(Remote)
12 000 USD
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Place the Microsoft Clarity code in the head of the site on the CMS Khoroshop.
16 USD
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Create a landing page
45 USD
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Need 2 landing pages for a makeup course and for hairstyles.
156 USD
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Need to develop a simple Landing Page for an online store.
23 USD
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Corrections on next.js
23 USD
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A quality Landing Page is needed for a project in the heating equipment sector.
56 USD
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Online store on OpenCart
225 USD
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Car service business card website
223 USD
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A new website is needed for a lawyer.
158 USD
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