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I'm Arunkumar Dharmarajan, a Senior Lead Front End Developer (React) with 15+ years of experience delivering scalable, innovative frontend solutions for enterprise clients. I specialize in React, JavaScript, HTML/CSS, and state management with Redux, building modern, component-based architectures to deliver responsive and accessible web apps. I lead cross-functional teams, mentor developers, and translate business goals into technical solutions that deliver measurable impact. I focus on performance, maintainability, accessibility, and collaboration with UX/UI designers and backend teams across fintech, banking, and retail domains.…I'm Arunkumar Dharmarajan, a Senior Lead Front End Developer (React) with 15+ years of experience delivering scalable, innovative frontend solutions for enterprise clients. I specialize in React, JavaScript, HTML/CSS, and state management with Redux, building modern, component-based architectures to deliver responsive and accessible web apps. I lead cross-functional teams, mentor developers, and translate business goals into technical solutions that deliver measurable impact. I focus on performance, maintainability, accessibility, and collaboration with UX/UI designers and backend teams across fintech, banking, and retail domains.

Arunkumar Dharmarajan

Front-End Developer, Full Stack Developer, Web Developer, +2

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I'm Arunkumar Dharmarajan, a Senior Lead Front End Developer (React) with 15+ years of experience delivering scalable, innovative frontend solutions for enterprise clients. I specialize in React, JavaScript, HTML/CSS, and state management with Redux, building modern, component-based architectures to deliver responsive and accessible web apps. I lead cross-functional teams, mentor developers, and translate business goals into technical solutions that deliver measurable impact. I focus on performance, maintainability, accessibility, and collaboration with UX/UI designers and backend teams across fintech, banking, and retail domains.…I'm Arunkumar Dharmarajan, a Senior Lead Front End Developer (React) with 15+ years of experience delivering scalable, innovative frontend solutions for enterprise clients. I specialize in React, JavaScript, HTML/CSS, and state management with Redux, building modern, component-based architectures to deliver responsive and accessible web apps. I lead cross-functional teams, mentor developers, and translate business goals into technical solutions that deliver measurable impact. I focus on performance, maintainability, accessibility, and collaboration with UX/UI designers and backend teams across fintech, banking, and retail domains.

Available to hire

I’m Arunkumar Dharmarajan, a Senior Lead Front End Developer (React) with 15+ years of experience delivering scalable, innovative frontend solutions for enterprise clients. I specialize in React, JavaScript, HTML/CSS, and state management with Redux, building modern, component-based architectures to deliver responsive and accessible web apps.

I lead cross-functional teams, mentor developers, and translate business goals into technical solutions that deliver measurable impact. I focus on performance, maintainability, accessibility, and collaboration with UX/UI designers and backend teams across fintech, banking, and retail domains.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Lead Front End Developer (React) at Cognizant Technology Solutions

July 1, 2010 - Present

Led front-end development for high-impact client projects, delivering seamless, performant user experiences. Directed the redesign of key retail journeys (Product & Cart pages), driving a 22% increase in conversion rates and significantly improved UX. Engineered scalable, reusable code with React and Redux, building a shared component library and hooks that reduced feature development time by 25%. Architected a multi-entry, multi-theme application using SCSS variables to support partner theming. Optimized data-fetching, memoization, caching, and API interaction patterns to improve responsiveness. Implemented code-splitting, bundling optimization, and prefetching to accelerate page loads. Collaborated with UX/UI designers and backend teams to deliver intuitive, accessible interfaces, while ensuring security and regulatory compliance. Pioneered component-based architecture to enable rapid feature deployments and maintainability in a fast-paced environment. Mentored junior developers and