Full-stack / WordPress Developer with 4 years of commercial experience building custom websites, e-commerce platforms, landing pages and web applications. Specialized in WordPress architecture, custom theme and plugin development, frontend implementation, API integrations and performance optimization.

Experienced in developing scalable and high-traffic production websites, integrating CRM and third-party services, improving PageSpeed and SEO performance, and maintaining secure, business-critical web platforms. Worked with agencies and clients from the USA, Estonia and Ukraine.

Accomplishments:

- Improved Google PageSpeed scores from under 30 to 80+

- Integrated third-party APIs, CRMs, analytics systems and payment solutions

- Developed custom plugins, Gutenberg blocks and advanced WordPress functionality

- Built and maintained WordPress Multisite platforms

- Delivered fully functional client websites within extremely short deadlines

- Optimized and maintained high-trac websites

- Successfully recovered and protected websites after DDoS attacks and security breaches

Tech Stack:

SQL, PHP, jQuery, Mysql, SASS, Webpack, AJAX, Figma, OOP, CMS Wordpress, WordPress Themes, ACF, WooCommerce Elementor, Gutenberg, Docker, REST API, SCSS, API, Docker, SASS, HTML5, npm, Bootstrap, Figma/Photoshop Cross-browser and adaptive layout skills, Clean Coding, CMS Platforms, JS Animaton, WP Multisite, CSS Animation

My experience: https://dev-08.semenenko.pp.ua/portfolio/