Валентин

KLIUCHEV VALENTYN
Front-End Developer
Location: Vinnytsia, Ukraine
Phone: [open contact info](look above in the "contact info" section)
Email: [open contact info](look above in the "contact info" section)
Github: github.com/sirdachello

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Skills:
●​ Programming & Technologies: TypeScript, JavaScript, React, Next.js, HTML
●​ Styling & UI: CSS (+SASS, LESS), TailwindCSS, Responsive Design, Adaptive
Design
●​ Performance Optimization: Lazy Loading, Code Splitting, Media
Optimization, Google Lighthouse Analysis
●​ Backend (Basic): Node.js, Express.js (User management, password hashing)
●​ Integrations: Google APIs, Social Media APIs (Instagram, Facebook), RESTful
Web Services, Mailing (Email.js)
●​ Version Control & Deployment: Git, GitHub Pages, Surge, Vercel,
Besthosting

Experience:
Front-end Developer:
Wow Meow Games — (2025 - present)
●​ Development of the company website using React, Tailwind, and Next.js
●​ Implemented responsive design and adaptive layout strategies for
mobile/tablet
●​ Collaborated with cross-functional teams including designers and backend
developers

Freelance Developer:
"Signal" Driving School (signal.vinnica.ua)
●​ Fully designed and developed the website from scratch, without a provided
mockup
●​ Created custom JavaScript for dynamic navigation and user interaction
●​ Reduced First Time Load from 3s to 1.5s through performance optimization
●​ Deployed and optimized website performance, reducing loading time (FTL)
from 3 seconds to 1.5 seconds.
●​ Improved SEO and accessibility using Core Web Vitals analysis
●​ Deployed site via BestHosting; maintained ongoing communication with client
for feedback and updates.
"Walk-with-Doggie" Pet-Care Service (walk-with-doggie.surge.sh)
●​ Built a responsive website based on a Figma mockup.
●​ Implemented interactive UI components using JavaScript and React.
●​ Applied TailwindCSS for clean and optimized styles.
●​ Ensured cross-browser compatibility and accessibility

Pet Projects
●​ Developed multiple personal projects to enhance skills and explore new
technologies.
●​ Completed other side-projects that can be found on my GitHub.
●​ Gained experience with GitHub Actions for CI/CD and basic GitHub Pages
deployment.

Education:
Vocational College / Secondary Vocational Education
2012 - 2016, Vinnytsia, Ukraine
Vinnytsia Technical Lyceum
Vinnytsia, Ukraine

Learning & Development:

Currently improving skills in:
●​ Next.js
●​ Tailwind (fine-tuning configs)
●​ Advanced React.js concepts

Summary:

Motivated Front-End Developer with hands-on experience in building scalable,
performant web applications using React, Next.js and TypeScript. Delivered
freelance projects from concept to deployment, with a focus on UX, SEO, and
performance. Currently sharpening skills in Next.js and advanced React patterns.
Open to full-time or freelance roles worldwide.