Serhii

SERHII DANCHUK
WORDPRESS DEVELOPER | JAVASCRIPT · PHP · FRONTEND
Ukraine · Remote | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section) | Telegram: @serhii_danchuk
PROFESSIONAL SUMMARY
WordPress Developer with 6+ years of commercial web development experience, specializing in custom themes, templates, PHP, JavaScript, ACF, Elementor, and Gutenberg. Experienced in building responsive websites and landing pages, maintaining production sites, integrating frontend functionality, and optimizing performance. Achieved Google PageSpeed Insights scores of up to 100/100 on relevant projects. Additional experience with React, Next.js, and frontend team leadership.
SKILLS
WordPress: Custom themes, templates, ACF (Advanced Custom Fields), Elementor, Gutenberg Block Editor, theme customization, site maintenance
Frontend: JavaScript (ES6+), HTML5, CSS3, responsive design, jQuery, React, Next.js
PHP & Integration: PHP, WordPress template hierarchy, theme integration, REST APIs
Performance & Tools: PageSpeed Insights, Lighthouse, lazy loading, image optimization, Webpack, Git
Additional: Website & landing page development, UI/UX implementation, cross-browser compatibility, Chart.js, Chrome Extensions, Node.js
PROFESSIONAL EXPERIENCE
Frontend Developer | InsulaLabs
Jan 2025 – Present | Remote, Ukraine
• Develop and maintain production web applications using React and modern JavaScript.
• Implement responsive UI from designs, reusable components, interactive forms, and new product features.
• Investigate frontend issues, improve performance, and support existing application architecture.
Team Lead Frontend Developer | Admiral Studios
Jul 2024 – Jan 2025 | Remote, Ukraine
• Progressed to a frontend team lead role while contributing to delivery and maintenance of web projects.
Full Stack Developer | Admiral Studios
Feb 2023 – Jul 2024 | Remote, Ukraine
• Maintained two WordPress websites: implemented new functionality, fixed bugs, and handled ongoing updates.
• Worked on frontend features across React and Next.js projects and developed a React-based plugin from scratch.
• Contributed image-editing features to a web photo editor and built data visualizations with Chart.js.
Full Stack Developer | Relokia
Sep 2021 – Feb 2023 | Ternopil, Ukraine
• Developed and maintained custom WordPress themes, templates, and website functionality using PHP, JavaScript, HTML, and CSS.
• Implemented responsive website layouts and UI/UX improvements for a production web product.
• Refactored legacy jQuery into vanilla JavaScript; reported 30% less code complexity and 25% better frontend performance.
• Optimized loading through media compression, lazy loading, code changes, and Webpack configuration.
• Built custom Zendesk Help Center themes and a separate Chrome Extension using React.
Frontend Developer | Wise Solutions
Jul 2020 – Sep 2021 | Ternopil, Ukraine
• Built responsive websites, landing pages, and frontend interfaces using HTML, CSS, JavaScript, and jQuery.
• Integrated layouts and interactive functionality into PHP-based applications.
• Optimized page loading and achieved Lighthouse/PageSpeed scores close to 100 on relevant projects.
EDUCATION
Master’s Degree, Software Engineering | Khmelnytskyi National University | 2016–2022
LANGUAGES
English — B1–B2