@harshjain - Senior Frontend Engineer

Senior Frontend Engineer

Front-end Engineer

Available for hire

Years of experience

8+ years

Experience level

Senior

Available from

23 Jun 2026

Download Resume / CV

Senior Frontend Developer and Technical Lead with 8+ years of experience architecting and delivering scalable enterprise web applications using React.js, TypeScript, and Next.js. Deep expertise in building reusable component libraries, micro frontend architecture (Module Federation), and UI performance optimization with measurable Core Web Vitals improvements. Hands-on production experience integrating Agentic AI, AI Agents, LLM-based AI services including OpenAI APIs into React and Next.js applications. Proven ability to lead and mentor cross functional distributed teams, define coding standards, drive architectural decisions, and ship quality software in fast-paced Agile environments

Employment History

Technical Lead at Excelra Knowledge Solutions 2022 - 2026

• Architected a 40+ component React UI library shared across multiple product lines, significantly accelerating feature delivery velocity and enforcing design system consistency. • Delivered 35% improvement in UI responsiveness by implementing memoization, code splitting, lazy loading, and Core Web Vitals optimizations. • Integrated LLM-based AI services (OpenAI API) into React and Next.js applications, enabling intelligent search, contextual data insights, and automated summarization for life sciences workflows. • Developed Server-Side Rendered (SSR) modules with Next.js to enhance SEO performance and initial page load speed on regulated life sciences platforms. • Led and mentored a team of 4+ frontend developers; established coding standards, conducted technical reviews, and improved overall delivery efficiency. • Collaborated with DevOps to integrate frontend builds into CI/CD pipelines, enabling automated testing and zero-downtime deployments. • Adopted AI-assisted development practices using GitHub Copilot, Cursor, and ChatGPT to accelerate sprint velocity and improve code quality. • Enforced life sciences data-handling compliance norms and UI consistency aligned with regulatory and privacy standards.

Software Developer at Cognizant Technology Solutions 2021 - 2022

• Built 30+ reusable React components deployed across 5+ enterprise modules, improving team development speed by 25%. • Contributed to scalable micro frontend architecture for enterprise-grade banking applications with modular deployment capabilities. • Managed complex application state across modules using Redux, Flux, and Context API in a regulated banking environment. • Built D3.js dashboards and interactive visualizations to surface risk data insights for business stakeholders. • Ensured compliance with regulated-domain data protection and audit readiness standards throughout the software development lifecycle.

UI Engineer at Impetus Technologies 2020 - 2021

• Increased test coverage by 35% using Jest and React Testing Library; authored unit tests as standard part of feature delivery. • Configured Webpack build optimization for improved bundle size and application performance. • Developed enterprise React modules with fully responsive layouts and cross-browser compatibility (Chrome, Firefox, Safari, Edge). • Translated user stories into UI features and presented working software to stakeholders in Agile Scrum ceremonies.

System Engineer at Tata Consultancy Services 2017 - 2020

• Built responsive enterprise web applications integrating REST APIs using JavaScript, HTML5, and CSS3 in Agile environments. • Developed reusable UI components and data-driven forms with cross-browser compatibility across all major browsers. • Partnered with stakeholders on requirement gathering, effort estimation, and sprint planning.

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Senior Frontend Engineer

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Employment History

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