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Vasyl
Frontend Developer
- City of residence:
- Ivano-Frankivsk
- Ready to work:
- Remote
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VASYL SLEZINSKYI
Frontend Engineer | React • TypeScript • Next.js
vasylskyi@gmail.com [open contact info ](look above in the "contact info" section) Wrocław, Poland LinkedIn
GitHub Telegram
PROFILE HARD SKILLS
Experienced React Frontend Developer with over 3 years Frontend
of building scalable and maintainable web applications. React
•
Skilled in React, Redux, RTK, and TypeScript, with Next.js
•
experience implementing real-time features via web Redux /RTK
•
sockets. I thrive in cross-functional Agile teams and TypeScript
•
focus on delivering high-quality, intuitive user JavaScript
•
experiences. Always eager to learn and take on complex React Router DOM
•
challenges. React Hook Form
•
SCSS /CSS
•
Tailwind
•
EXPERIENCE Webpack /Vite
•
RTK Query
•
LG Energy Solution
Frontend Developer Additional Tools
10/2023 – Present | Wrocław, Poland Git
•
Unified platform for lithium-ion battery production cycle Postman
•
automation and quality control. Jest
•
Built real-time dashboard modules for machine status
•
Sentry
•
and batch tracking using Shadcn-UI and React- CI/CD
•
virtualized to handle high-frequency data without
performance drops.
Integrated Sentry for error tracking with source maps,
•
EDUCATION
reducing software-related downtime by 30% by
accelerating debugging of interfaces interacting with Bachelor's Degree in Automation and
PLC via REST APIs. Computer-Integrated Technologies
Developed a dynamic constructor for digital checklists
•
Ivano-Frankivsk National Technical University of Oil and
and QC forms using React Hook Form with Zod Gas
validation, adaptable to various battery chemistries 09/2017 – 06/2021 | Ivano-Frankivsk, Ukraine
and technical specs.
Designed inventory management UI with batch-
•
number filtering and real-time warehouse sync via RTK LANGUAGES
Query.
Optimized rendering of high-density analytical charts
•
Ukrainian
with code splitting, memoization (React.memo, Native
useMemo, useCallback).
English
COMFY Upper-Intermediate
React Developer
09/2022 – 10/2023 | Remote Polish
Development and optimization of a high-traffic Upper-Intermediate /Advanced
electronics marketplace and internal retail management
systems. Russian
Built a high-performance storefront with advanced
•
Native
filtering and full-text search, integrated via RTK Query
for real-time pricing and stock synchronization.
Improved LCP and CLS metrics on PDP and PLP pages
•
via lazy-loading, code splitting, and memoization -
critical for SEO and user retention.
Implemented React-virtualized for infinite product
•
scroll, maintaining 60 FPS across thousands of catalog
items.
Developed a flexible checkout form constructor with
•
React Hook Form and Zod, handling complex delivery
logic and pickup point selection.
Integrated Sentry for real-time bug detection in
•
Checkout flow, improving payment transaction
success rate.
Frontend Engineer | React • TypeScript • Next.js
vasylskyi@gmail.com [
GitHub Telegram
PROFILE HARD SKILLS
Experienced React Frontend Developer with over 3 years Frontend
of building scalable and maintainable web applications. React
•
Skilled in React, Redux, RTK, and TypeScript, with Next.js
•
experience implementing real-time features via web Redux /RTK
•
sockets. I thrive in cross-functional Agile teams and TypeScript
•
focus on delivering high-quality, intuitive user JavaScript
•
experiences. Always eager to learn and take on complex React Router DOM
•
challenges. React Hook Form
•
SCSS /CSS
•
Tailwind
•
EXPERIENCE Webpack /Vite
•
RTK Query
•
LG Energy Solution
Frontend Developer Additional Tools
10/2023 – Present | Wrocław, Poland Git
•
Unified platform for lithium-ion battery production cycle Postman
•
automation and quality control. Jest
•
Built real-time dashboard modules for machine status
•
Sentry
•
and batch tracking using Shadcn-UI and React- CI/CD
•
virtualized to handle high-frequency data without
performance drops.
Integrated Sentry for error tracking with source maps,
•
EDUCATION
reducing software-related downtime by 30% by
accelerating debugging of interfaces interacting with Bachelor's Degree in Automation and
PLC via REST APIs. Computer-Integrated Technologies
Developed a dynamic constructor for digital checklists
•
Ivano-Frankivsk National Technical University of Oil and
and QC forms using React Hook Form with Zod Gas
validation, adaptable to various battery chemistries 09/2017 – 06/2021 | Ivano-Frankivsk, Ukraine
and technical specs.
Designed inventory management UI with batch-
•
number filtering and real-time warehouse sync via RTK LANGUAGES
Query.
Optimized rendering of high-density analytical charts
•
Ukrainian
with code splitting, memoization (React.memo, Native
useMemo, useCallback).
English
COMFY Upper-Intermediate
React Developer
09/2022 – 10/2023 | Remote Polish
Development and optimization of a high-traffic Upper-Intermediate /Advanced
electronics marketplace and internal retail management
systems. Russian
Built a high-performance storefront with advanced
•
Native
filtering and full-text search, integrated via RTK Query
for real-time pricing and stock synchronization.
Improved LCP and CLS metrics on PDP and PLP pages
•
via lazy-loading, code splitting, and memoization -
critical for SEO and user retention.
Implemented React-virtualized for infinite product
•
scroll, maintaining 60 FPS across thousands of catalog
items.
Developed a flexible checkout form constructor with
•
React Hook Form and Zod, handling complex delivery
logic and pickup point selection.
Integrated Sentry for real-time bug detection in
•
Checkout flow, improving payment transaction
success rate.
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The candidate's resume is posted at https://www.work.ua/resumes/18878397/