Ajit Singh
Frontend Developer | React.js | JavaScript | TypeScript | UI/UX
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About
Results-driven Frontend Developer with 4+ years of experience designing and delivering high-performance, responsive web applications. Proficient in React.js, JavaScript (ES6+), TypeScript, HTML5, and CSS3. Proven track record of improving page load speeds by up to 40%, boosting organic traffic through SEO best practices, and increasing conversion rates by 20%.
Experienced in cross-functional collaboration, Agile environments, and delivering pixel-perfect UI/UX using Figma. Strong focus on accessibility (WCAG), performance optimization, and scalable component architecture.
Experience
Website Maintenance Consultant - WINS4YOU.US - Remote
(2024-02)
Contract position
- Diagnosed and resolved high-priority bugs across multiple production client websites, reducing downtime and improving end-user experience.
- Enhanced mobile responsiveness and cross-browser compatibility, achieving a 15% improvement in SEO performance metrics.
- Audited and refactored legacy frontend codebases, applying modern JavaScript patterns and optimizing CSS for long-term maintainability.
- Delivered regular technical reports and communicated solutions to non-technical stakeholders, ensuring full project transparency.
Frontend Developer - AICT - Kolkata, India
(2021-04 - 2023-12)
On-site, Full-time
- Developed, maintained, and optimized 30+ responsive websites using React.js, JavaScript (ES6+), HTML5, and CSS3, resulting in a 20% increase in client conversion rates.
- Improved page load speed by 40% through code splitting, lazy loading, and asset optimization, directly contributing to higher user retention and reduced bounce rates.
- Implemented on-page and technical SEO strategies — meta tags, schema markup, and Core Web Vitals — significantly boosting organic search traffic.
- Architected and built an e-commerce product catalog with React Router, Context API, and state management, enabling seamless product filtering and cart functionality.
- Collaborated with UI/UX designers using Figma to translate wireframes into pixel-perfect, WCAG-compliant web interfaces.
- Participated in Agile sprints, conducted code reviews, and maintained version control via Git/GitHub across multiple concurrent projects.
Education
Bachelor of Commerce - Accounts & Finance - Calcutta University (2018)


