Yevhen Goga
Offer Yevhen work on your next project.
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Offer work 
Odessa,
Ukraine
16 days 22 hours back
available for hire
on the service 3 years
Rating
Successful projects
Average rating
Language proficiency level
Українська: fluent
English: upper-intermediate
Română: intermediate
Skills and abilities
Portfolio
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203 USD Refactoring a React application (code optimization)
Web Programming
#React #Refactoring #Frontend #WebApp
Conducted refactoring of the frontend part of the React application to improve stability and simplify further development.
… Problems:
– complex and convoluted logic
– code duplication
– unstable operation of asynchronous processes
– difficulty in making changes to the project
What was done:
– simplified the structure of components
– removed logic duplication
– fixed errors in asynchronous logic
– optimized state management and re-renders
– improved code organization for future development
Result:
– more stable operation of the application
– clear code structure
– faster addition of new features
– easier project maintenance
Technologies:
React, JavaScript / TypeScript
*Project details are not disclosed due to NDA.*
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259 USD Optimization of React application speed (performance)
Web Programming
#React #Performance #Optimization #Frontend #WebApp
Conducted optimization of the frontend part of the React application to improve loading speed and overall performance.
… Problems:
– large bundle size
– slow page loading
– delays when navigating between pages
What was done:
– bundle optimization (code splitting, lazy loading)
– reduction of JavaScript size
– cleaning up unnecessary dependencies
– improvement of caching performance
– optimization of project build (Vite)
Result:
– reduction of bundle by approximately 40%+
– faster page loading
– improvement of Core Web Vitals (LCP)
– more stable and scalable structure
Technologies:
React, TypeScript, Vite, Web Performance
*Project details are not disclosed due to NDA.*
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271 USD Online store for digital products (React / Next.js)
Web Programming
#React #Nextjs #Ecommerce #Frontend
Developed the frontend part of an online store for selling digital products.
… What was done:
– responsive layout of pages
– product catalog with cards
– product page and cart
– UI components for easy navigation
– dark theme interface
Result:
– clear and user-friendly interface
– ready structure for further development
– modern design focused on the user
Technologies:
React / Next.js / TypeScript / CSS
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226 USD Development of SaaS Dashboard (React / TypeScript)
Web Programming
#React #TypeScript #Dashboard #SaaS #Frontend #WebApp
Developed a modern SaaS dashboard for displaying business metrics and analytics.
… The project is focused on convenient data handling: revenue, clients, projects, and key performance indicators.
What was done:
– adaptive dashboard page with navigation
– KPI blocks and analytics (charts, trends)
– client and project management pages
– data tables and operational widgets
– dark theme (dark mode)
– UI built on reusable components
Result:
– user-friendly interface for working with business data
– clear visualization of metrics
– scalable frontend architecture for further development
Technologies:
React, TypeScript, Charts, REST API, CSS
*The data in the project is demonstration (mock data).*
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338 USD MVP web application for the hackathon on React / Next.js
Web Programming
#React #Nextjs #TypeScript #MVP #Frontend #Hackathon #WebApp
Developed an MVP web application for a hackathon under a tight deadline.
… My role:
– development of the frontend part of the application
– creation of a responsive UI
– integration with backend/API
– fixing critical bugs before release
– working in a team under a deadline
– preparing the product for demo
What was done:
– implemented the main screens of the product
– set up the logic for data interaction
– improved the stability of the interface
– fixed a critical bug before the final release
– MVP was brought to a working state and presented
Technologies:
React, Next.js, TypeScript, REST API, Git, CSS / Tailwind CSS
This project demonstrates my experience in rapid development, teamwork, and the ability to deliver a product under high pressure.
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400 USD CandLeaf
Online Stores & E-commerce
CandLeaf is a web application developed using modern frontend technologies. The project is based on React and Redux Toolkit, which provide efficient state and component management. The site is built on a component-based approach, simplifying its maintenance and scalability. CSS modules are used for styling, allowing for the creation of an adaptive and cross-browser interface. The project is optimized for fast loading and SEO.
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Website Update and Basic Improvement Needed
300 USD
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Technical and visual analysis of the website
16 USD
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Landing page for the Academy
135 USD
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Website speed optimization
45 USD
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GridVision – adaptive visualization system for Smart Grid
113 USD
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Optimization of store performance on ocStore 3.0.2
90 USD
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Need a developer Nodejs, Nestjs + MongoDB & Postgre
581 USD
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Layout of landing page on React/Vite + integration of form
113 USD
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Increase the Google PageSpeed score to 60 (mobile version)
68 USD
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I am looking for a programmer for an HTML website built on WordPress Elementor.
200 USD
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