Frontend Developer

Yahor Yanushkevich

Front-end Developer

*****.*****************@*****.*** +48-793-***-*** Hipolitow, Poland linkedin.com/in/yahor-frontend-dev github.com/senior-dev30 Profile

Front-end Developer with over 5 years of experience designing, developing, and deploying fast, scalable, and accessible web applications using React, Next.js, TypeScript, and JavaScript. Proficient in translating UI/UX designs (Figma, Adobe XD) into clean, maintainable code. Specialized in building e-commerce platforms, singlepage applications (SPAs), and admin dashboards. Skilled in state management (Redux, Zustand), RESTful API integration, responsive design, and implementing reusable component libraries. Experienced in Agile environments, version control systems (Git), and cross-functional collaboration. Professional Experience

Frontend Developer, FCB Health Spark

•Completed custom video playback features, increasing user engagement by 20%.

•Engineered interactive e-learning modules that enhanced knowledge retention by 30%.

05/2022 – 04/2025

Warsaw, Poland

•Refactored API calls, improving data retrieval speed by 20%.

•Mentored junior developers on React best practices, reducing onboarding time by 25%.

Frontend Developer, Deskpro

•Built and maintained a UI library with over 80 reusable React components.

•Integrated internationalization (i18n), enabling platform expansion to 5+ global markets.

01/2020 – 12/2021

London, UK

•Implemented automated testing (Jest, Cypress), improving test coverage and reducing bugs by 25%.

Frontend Developer (Next.js), NantucketRentals - Contract

•Designed and implemented a responsive property listing application using Next.js and Material UI, enhancing mobile usability by 18%.

•Integrated RESTful APIs to support 500+ data entries for listings with fast and reliable access.

07/2019 – 12/2019

Nantucket, MA, USA

•Collaborated with designers and backend engineers to standardize UI components and reduce page load time by 15%.

Education

Bachelor's Degree / Computer Science, University of Lodz

•Capstone: Designed a full-stack student portal with PHP and MySQL.

•Core Courses: Data Structures, Web Development, Software Engineering. 04/2019 – 04/2023

Lodz, Poland

Skills

Frontend Development

•React.js, Next.js, TypeScript, JavaScript (ES6+), Redux, Zustand

•HTML5, CSS3, SCSS, Styled-Components, Tailwind

CSS, Material UI, Storybook

Testing & Debugging

•Jest, Cypress, Enzyme, Mocha, Chrome DevTools

Methodologies

•Agile, Scrum, TDD, Git Flow, End-to-End Testing

Backend & DevOps

•Node.js, Express.js, MongoDB, MySQL, PHP, Laravel, WordPress

•Docker (basic), RESTful APIs, JWT, CI/CD, MVC

Architecture

•AWS (EC2, S3), Netlify, Vercel, Postman, Git, GitHub, GitLab

Design & Tools

•Figma, Adobe XD (familiar), Webpack, Babel

Languages

English Polish

Projects

Nantucket Rentals, Interactive Learning Modules

•Built a responsive Next.js application with Material UI, managing over 500 listings and improving mobile load speed by 18%.

Interactive Learning Modules, Admin Panel for Deskpro

•Produced React-based video quizzes and lessons, boosting educational client engagement by 25%. Deskpro Admin Panel

•Created a modular admin dashboard to improve internal support operations and streamline workflows

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