Сергій

CONTACT
SERHII PIATKO
FULL STACK DEVELOPER
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SUMMARY
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Full Stack Developer with deep knowledge and 3 years of commercial freelance and
Ukraine, Vinnytsia volunteer experience in building modern applications.
Skilled in JavaScript, TypeScript, HTML/CSS, React.js. Have experience in Node.js.
https://t.me/Serhii_Piatko Known for attention to detail, the ability to quickly learn new technologies, and effective
collaboration within development teams.
https://github.com/LadeMor
SKILLS
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Languages : JavaScript, TypeScript, HTML, CSS, C# (Basics)
piatko
Frontend: React JS, React Router DOM, Redux, Redux Toolkit, HTML5, CSS3, SASS,
SCSS, TailwindCSS, Ant Design 5, Material UI, Framer Motion
EDUCATION
Backend: Node.js, Express.js, PostgreSQL
2019 - 2023 Game Development: Unity (C#)
KHERSON STATE UNIVERSITY API/Integrations: Telegram API, Telegraph
Software Engineer (Bachelor's Tools & Others: Git, Webpack, ESLint, Prettier
degree)
WORK EXPERIENCE
2023 - 2024
KHERSON STATE UNIVERSITY
Top Pick Design 2023 - PRESENT
Software Engineer (Master's Full Stack Developer volunteer (React JS, Node js,
degree) HTML/CSS/TS)
2019 - 2022 Refactored the React frontend by modularizing components and optimizing state
management, leading to a 33% reduction in reported UI bugs.
STEP IT ACADEMY
Created a user review system with real-time updates and moderation tools,
Software Developer
increasing user engagement and interaction by 14%.

LANGUAGES Freelance 2021 - 2023
Full-stack developer (React JS, Node js, HTML/CSS/TS/JS)

Ukranian (Native) Enhanced the Telegram bot’s user interface and improved performance, leading to
English (Upper Intermediate) a 7% increase in user engagement.
Russian (Proficient) Optimized UI elements for an English learning website, including sliders and
animated menus, reducing page load time by 20%.
Refactored existing backend code and implemented error handling, improving
system stability and reducing bugs.

Design Factory 2019 - 2021
Front-end developer (HTML/CSS/JS)
Communicated directly with clients, gathering feedback and implementing
revisions to meet their business needs.
Suggested UX/UI improvements, enhancing site visual appeal and usability based
on client goals.
Implemented interactive elements and animations, making websites more
engaging.