Особисті дані приховані

SERHII DANCHUK
Frontend / React Developer / Markup Developer
React · TypeScript · JavaScript · Next.js · Angular · REST API · WordPress
SUMMARY
Frontend Developer with 6+ years of experience building and maintaining web applications using React, TypeScript, JavaScript, Angular, Next.js, and WordPress.
Experienced in developing responsive interfaces, reusable UI components, custom integrations, browser extensions, WordPress solutions, and production features. Strong focus on clean architecture, performance, maintainability, and delivering features from implementation to production.

TECHNICAL SKILLS
Frontend:
React, TypeScript, JavaScript, Next.js, Angular, HTML5, CSS3, Responsive Design
State & Architecture:
React Hooks, Component Architecture, Reusable Components, State Management
APIs & Integrations:
REST API, Third-Party API Integration, Browser Extensions
WordPress:
WordPress, Custom Themes, Custom Plugins, ACF, Templates, PHP
Testing & Quality:
Unit Testing, Component Testing, E2E Testing, Code Review
Performance:
PageSpeed, Lighthouse, Image Optimization, Media Optimization
Build & Development Tools:
Webpack, Git, CI/CD
Monitoring:
Sentry

PROFESSIONAL EXPERIENCE
NDA-Protected Projects
Markup Developer / Frontend Developer
2025 – 2026
• Developed responsive and pixel-perfect user interfaces using HTML, CSS, JavaScript, and Angular.
• Converted design layouts into reusable and maintainable frontend components.
• Implemented complex page layouts, interactive UI elements, animations, and responsive behavior across different screen sizes.
• Integrated frontend components with Angular application logic and backend APIs.
• Optimized markup, styles, assets, and frontend resources to improve page loading speed and overall performance.
• Ensured consistent UI behavior and visual accuracy across modern browsers and devices.
• Collaborated with designers and developers to translate design specifications into production-ready interfaces.
• Maintained and improved existing frontend components while implementing new UI functionality.

Admiral Studios
Frontend Developer / Senior Frontend Developer
2023 – 2025
• Developed and maintained production web applications using React, Next.js, JavaScript, and TypeScript.
• Built reusable React components and frontend functionality for new and existing products.
• Developed custom React plugins, including functionality incorporating AI-based features.
• Implemented an image editor with background removal, image blurring, and image processing functionality.
• Developed and integrated new product features while maintaining existing functionality and resolving production issues.
• Worked with WordPress, including custom themes, templates, and frontend integrations.
• Collaborated with backend developers and other team members to integrate APIs and deliver end-to-end product functionality.
• Investigated and fixed frontend bugs, performance issues, and UI inconsistencies.
• Contributed to frontend architecture and technical decisions across projects.
Promoted to Team Lead
• Led frontend development and supported technical decision-making.
• Reviewed code and helped maintain development standards.
• Supported other developers with technical questions and implementation decisions.
• Coordinated frontend work and helped break down requirements into development tasks.

Relokia
Frontend Developer
2021- 2023
• Maintained the frontend of a production web product, implementing new features, fixing issues, and improving the overall user experience.
• Developed and maintained custom WordPress themes, templates, and functionality using PHP, JavaScript, HTML, and CSS.
• Designed UI/UX concepts and created interfaces for new product features and improvements.
• Developed and customized Zendesk Help Center themes, including custom layouts, components, styling, and functionality.
• Developed a separate Chrome Extension using React as an independent project.
• Improved PageSpeed/Lighthouse performance through frontend optimization, media compression, lazy loading, code optimization, and Webpack configuration.

Wise Solutions
Frontend Developer
2020- 2021
• Developed and maintained responsive web interfaces across multiple projects.
• Built web pages from designs with a strong focus on cross-browser compatibility and pixel-perfect implementation.
• Developed interactive features and client-side functionality using JavaScript and jQuery.
• Integrated frontend layouts into PHP-based web applications and server-side templates.
• Optimized website performance and PageSpeed/Lighthouse scores, frequently achieving results close to 100.
• Fixed bugs, refactored existing code, and improved overall frontend performance and maintainability.
• Worked on multiple projects simultaneously, adapting to different designs, requirements, and technical environments.

CORE STRENGTHS
• React and TypeScript development
• Frontend architecture and reusable component design
• Responsive and pixel-perfect UI development
• REST API integrations
• WordPress development
• Performance optimization
• Frontend testing
• Production debugging and maintenance
• Code review and mentoring
• Team leadership
• Cross-functional collaboration

LANGUAGES
Ukrainian: Native
English: B2

CONTACTS
Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)
E-mail: [відкрити контакти](див. вище в блоці «контактна інформація»)
Linkedin: [відкрити контакти](див. вище в блоці «контактна інформація»)
GitHab: github.com/SergiyDanchuk