Sumit Lohar

Frontend Developer | React.js | JavaScript | 3+ Years Experience

Talent

BengaluruMember since 4 June 2026

JavaScriptReact.jsVue.jsNext.jsCSS3Tailwind CSSGitGitHubNetlifyVercelResponsive Web DesignAPI IntegrationState ManagementPerformance OptimizationChatGPTGitHub CopilotReact 19ViteReact-ReduxRedux ToolkitTanStack QueryReact Server ComponentsSupabaseOAuthMarkdownSEO

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JavaScriptReact.jsVue.jsNext.jsCSS3

About

Frontend Developer with 3+ years of experience designing and developing scalable, high-performance web applications using React.js, Vue.js, and JavaScript (ES6+). Skilled in building reusable component libraries, RESTful API integration, responsive web design, and cross-functional team collaboration. Proven track record of improving application performance by up to 25%, reducing manual workflows by 40%, and delivering pixel-perfect, user-centric interfaces.

Utilizes AI-assisted development tools such as GitHub Copilot, Claude, Cursor, and ChatGPT to improve development efficiency and code quality - regardless of domain or framework. Experienced in Agile development environments with a strong focus on code quality, optimization, and continuous improvement.

Experience

Frontend Developer - Greynium Information Technologies Pvt. Ltd. - Bangalore, India

(2025-07)

Designed and developed scalable frontend modules using React.js, Vue.js, improving UI performance and enforcing consistent component design patterns across the platform.
Integrated RESTful APIs and optimized data rendering, reducing UI response time by 25% and increasing estimated user efficiency by 30%.
Collaborated with a cross-functional team of backend engineers, UI/UX designers, and QA to deliver pixel-perfect, responsive implementations on schedule.
Applied best practices in state management, component lifecycle handling, and performance optimization to improve application stability and reduce future development effort by 15%.

Frontend Developer - HOLA9 Classifieds India Pvt. Ltd. - Bangalore, India

(2023-02 - 2025-07)

Developed and maintained responsive, cross-browser compatible web interfaces for a classified listings platform serving thousands of users across mobile, tablet, and desktop.
Improved website performance by 25% through lazy loading, asset optimization, and elimination of unnecessary DOM re-renders.
Built reusable React.js component library that reduced coding time and streamlined development across multiple concurrent projects.
Worked closely with a 5-member product and design team to ship features on time with high code quality.