Oleksandr Pilganchuk

Front-End Developer

Summary

Front-End Developer with 3.5+ years of experience creating responsive, high-performance websites. Skilled in semantic HTML, CSS/SCSS, JavaScript (ES6+), and React.js. Focused on building maintainable, accessible, and performant solutions with attention to clean architecture, SEO best practices, and close collaboration with UI/UX teams.

Work Experience

  • Clario — Product Growth Team

    Front-End Engineer
    January 2022 – August 2025 | Kyiv, Ukraine
    • Developed responsive, cross-browser interfaces using HTML5, CSS3/SCSS, and JavaScript (ES6+), ensuring compatibility across modern and legacy browsers.
    • Built interactive and maintainable components with React.js for the blog admin panel, implementing new features and enhancing usability through modular, component-based architecture.
    • Built modular UI components (SCSS/BEM), templated dynamic blocks with Blade (Laravel 8), and contributed to core product areas (website, blog, purchasing flows, landing pages).
    • Improved Core Web Vitals and frontend performance using Lighthouse and Chrome DevTools; applied SEO best practices (semantic HTML, meta tags, Schema.org).
    • Implemented and maintained integrations with multiple payment APIs (Stripe, PayPal, Cleverbridge, PPG), ensuring seamless billing, checkout, and subscription flows.
    • Conducted A/B testing and integrated analytics (Google Analytics, event tracking), generating actionable UX insights and driving conversion improvements.
    • Created and localized HTML email templates with tracking, improving delivery monitoring and open-rate analysis.
    • Refactored and optimized legacy codebase, improving maintainability and readability.
    • Collaborated with stakeholders and customers to clarify requirements and gather feedback; worked closely with cross-functional teams (UI/UX, QA, backend) in Agile sprints.
    • Ensured accessibility and consistent performance across devices and browsers.

    Tech stack: JavaScript (ES6+), React.js, HTML5, CSS3/SCSS, BEM, Flexbox, REST API, Axios, Git, Webpack, Docker, PHP (basic), Laravel (Blade), Figma.

Education

  • Kyiv National University of Construction and Architecture

    Industry Engineering
    2009 – 2014 | Kyiv, Ukraine

  • IT School GoIT

    Full Stack Developer Certificate Program
    October 2020 – November 2021 | Kyiv, Ukraine