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  1. Freelancers

Ivan Yaremechko

Business-minded Frontend Developer: writing clean code to solve real-world problems.
Offer Ivan work on your next project.

Ukraine Lvov, Ukraine
currently online
Available for hire available for hire
on the service 1 year
  • web developer
  • flexbox
  • Crossplatform development
  • HTML5/CSS3/SCSS/SASS
  • React/TypeScript
  • Figma
Freelancer Ivan Y. — Ukraine, Lvov. Core skill — Javascript and Typescript, HTML & CSS

Rating

Successful projects
No data
Average rating
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Rating
300
Javascript and Typescript 1
762 place out of 3478
HTML & CSS 1
1132 place out of 5604

Language proficiency level

Українська Українська: fluent
English English: intermediate

CV

Hi there! I am a Frontend Developer specializing in creating clean, responsive, and interactive web applications using pure Vanilla JavaScript and modern styling methodologies.


I have a deep understanding of standard JavaScript (ES6+) and modern adaptive layouts (HTML5, CSS3, SCSS). In addition to my technical stack, my 10-year background in sales management allows me to think from a business perspective. I understand client needs, focus heavily on project goals, strictly respect deadlines, and always aim for high-quality results.


How I can help your project:

• Development of robust web applications and interactive components using Vanilla JS.

• Cross-browser, Pixel-Perfect, and Mobile-First responsive layouts (SCSS/SASS).

• REST API integration and handling asynchronous network requests.

• Writing clean, maintainable code following professional Git/GitHub workflows.

Skills and abilities

Programming

Portfolio


  • Foundation Layout

    HTML & CSS
    Foundation Layout — example of freelancer's portfolio work in category HTML & CSS
    A professional, fully responsive, and cross-browser web layout built from scratch with a strict focus on clean style architecture and modern practices.

    Implemented Technical Features:
    • BEM Methodology (Block-Element-Modifier): Structured for complete modularity, clean component isolation, and long-term maintainability.
    … • Advanced Sass (SCSS): Utilized variables, mixins, and nested rules to compile a highly organized stylesheet system.
    • Smart Responsiveness: Implemented pixel-perfect layout adaptation supporting mobile viewports (up to 1399px) and desktop resolutions (from 1400px+).
    • CSS Flexbox Layout: Leveraged flex elements for consistent, adaptive structural grids across multiple viewport sizes.

    #html #css #scss #sass #bem #flexbox #adaptive #responsive #frontend #layout

  • ClickFinder

    Javascript and Typescript
    ClickFinder — example of freelancer's portfolio work in category Javascript and Typescript
    A modern, high-performance Single Page Application (SPA) designed to fetch, aggregate, and analyze complex user activity statistics from remote REST API servers.

    Implemented Technical Features:
    • Custom SPA Routing: Framework-free client-side router utilizing the HTML5 History API for seamless page transitions.
    … • Advanced Data Aggregation: Handled asynchronous fetching from multiple REST endpoints, merging and transforming complex JSON datasets.
    • Smart Mathematical Pagination: Engineered a robust chunked pagination component with dynamic boundary rendering and ellipsis (...) navigation.
    • Clean Architecture: Developed following the Separation of Concerns (SoC) principle using modular ES6+ JavaScript.

    #javascript #spa #rest_api #frontend #scss #html #vanillajs #web_development

  • REST API (Smart Coworking)

    Javascript and Typescript
    REST API (Smart Coworking) — example of freelancer's portfolio work in category Javascript and Typescript
    A dynamic reservation web application built on a modular architecture to handle real-time coworking space bookings with full server-side integration.

    Implemented Technical Features:
    • Seamless REST API integration using modern asynchronous JavaScript (Async/Await, Fetch API).
    … • Advanced client-side validation logic that completely prevents double-bookings or scheduling conflicts.
    • Dynamic DOM management and real-time interface updates based on backend server responses.
    • Fully responsive grid layouts developed using modern SCSS/CSS3 and semantic HTML5.

    #javascript #rest_api #api_integration #frontend #scss #html #vanillajs

  • Google Calendar Clone

    Javascript and Typescript
    Google Calendar Clone — example of freelancer's portfolio work in category Javascript and Typescript
    A fully functional, responsive web application that accurately replicates the core features and UI of Google Calendar. Built completely from scratch without heavy frameworks or templates.

    Implemented Technical Features:
    • Modular application architecture built entirely with Vanilla JavaScript (ES6+ Modules).
    … • Complex date handling logic, seamless switching between weekly and monthly views.
    • Dynamic event management inside the DOM: creation, updating, deletion, and time validation.
    • Cross-browser, responsive layout built Mobile-First using modern SCSS/CSS3 and semantic HTML5.

    #javascript #frontend #scss #html #css #vanillajs #web_development