Ростислав

ROSTYSLAV ZAHARIUI
FULL STACK DEVELOPER
Telegram: @reikai1337 | Phone: [открыть контакты](см. выше в блоке «контактная информация»)
Mail: [открыть контакты](см. выше в блоке «контактная информация») | Github: https://github.com/Reikai1337

SUMMARY
Experienced web developer with a background in building scalable and high-performance applications.
Proficient in React, TypeScript, Node.js, and Shopify, with a focus on delivering maintainable code and
enhancing user experiences.

TECHNICAL SKILLS

Frontend: React, Next.js, Remix, TypeScript, Tailwind CSS, MUI, Polaris
Backend: Node.js, Nest.js, Express, REST, Shopify API, GraphQL, Docker, Puppeteer (web scraping)
Databases: PostgreSQL, TypeORM, MongoDB, Sequelize, Mongoose

PROFESSIONAL EXPERIENCE

DevIT Group — Full-Stack Developer Sep 2024 – Jul 2025
Developed a dynamic navigation banner builder with theme-based templates for Shopify storefronts
(React, Polaris, Shopify Admin).
Refactored AI-powered grammar analysis tool for product content with OpenAI API, improving content
quality and accessibility (TypeScript, OpenAI API, a11y).
Optimized Core Web Vitals (CLS, LCP, INP) across all components, enhancing performance, SEO, and
user experience.
BorisDoes — Full-Stack Developer 2021 – Sep 2024
Migrated a legacy SPA to Next.js using Feature-Sliced Design (React, MobX, TypeScript), improving
maintainability and enabling modular feature development.
Designed and implemented a site builder module, allowing users to create branded websites directly on
the platform with built-in payment processing, invoicing, and order management.
Rebuilt the Shopify admin app (React, MUI, NestJS) to support advanced competitor price tracking:
Added ability to select products for tracking, automated daily price checks, and real-time sync with
Google Sheets.
Delivered automated daily competitor pricing reports, reducing manual work by 100% and enabling
dynamic pricing strategies.

EDUCATION
Glukhiv Agrotechnical Vocational College of SNAU Computer Science Sep 2017 – Jul 2021
National University of Food Technology Computer Science May 2014 - May 2016

ADDITIONAL INFORMATION
Languages: English (B1)