Сергій

Full Stack Developer
Serhii Kushnir
Poland [open contact info](look above in the "contact info" section) (Telegram @SerhiyKushnir) [open contact info](look above in the "contact info" section) LinkedIn Portfolio GitHub

Full Stack Developer with expertise in React, Next.js (SSG/SSR), TypeScript, SKILLS
Node.js, MongoDB, and MySQL. Experienced in building scalable web
Frontend:
applications with optimized performance, seamless user experiences, and
robust functionality. Passionate about creating efficient, maintainable JS (ES6+), TS

solutions. React, Next.js, Redux
Tailwind CSS, SASS,

EXPERIENCE Material UI

Responsive design &

Full Stack Developer Reel-Reveal Accessible Web Design
January 2024 - Present
Backend:
Next.js, React, TS, Tailwind CSS, OpenAI API, MongoDB, TMDB API, NextAuth
Node.js,
Express.j
Built a responsive movie discovery app integrating TMDB API and
MongoDB, REST API,
OpenAI API for dynamic content recommendations
Designed and implemented an interactive movie quiz using OpenAI API, OpenAI API
improving user engagement Authentication
Collaborated with a UX designer to create a pixel-perfect, user-friendly (NextAuth, JWT)
interface
Tools & Other:
Optimized API usage, reducing token consumption by 20%, lowering
operational costs Git, GitHub, CI/C
Set up and managed a MongoDB database, ensuring efficient data Performance
storage and fast retrieval. Optimization, Code
Refactoring
Front End Developer Junfolio Agile & Team
September 2024 - Present
React, Next.js, TS, Tailwind CSS, Redux, React Hook Form, Yup
Collaboration
Developed and optimized a platform connecting startups with
collaborators EDUCATION
Refactored code and optimized images using SVG sprites, improving GO IT

load times
Full Stack Development
Built reusable, user-friendly forms with React Hook Form and Yup 2022 - 2023
Managed code refactoring for better maintainability Certificate
Mentored developers and conducted technical interviews.
NATIONAL AVIATION
Senior Industrial Engineer Vericom UNIVERSITY

2013 - 2024, Kyiv, Ukraine Master’s Degree in

Oversaw customer consultations and managed the entire production Energy Engineering

process
Developed and maintained CNC machine tools for production, working
with various programs to create drive programs and optimize
LANGUAGES
manufacturing efficiency Ukrainian - native
Designed, debugged, and managed the full production cycle. Rassian - native
English - B1