Deepak kumar

Deepak kumar

Software engineer II

Gurugram, India

#OpenToWork

About

Results-driven Frontend Developer and Software Engineer with 5+ years of experience designing, developing, and deploying scalable, high- performance web applications for global enterprise clients. Specialized in React.js, Redux, RTK Query, JavaScript (ES6+), and modern frontend architecture, with hands-on expertise in REST API integration, responsive UI design, and component-based development. Proven track record of improving application performance by up to 40% and scalability by 35% through optimization, reusable components, and best engineering practices. Experienced in Agile/Scrum environments, cross-functional collaboration, and AI-assisted development workflows using Claude and GitHub Copilot. Recognized with multiple performance awards for technical excellence, mentorship, and rapid issue resolution.

What I'm looking for

Seeking Senior Frontend Developer / Team Lead roles in React.js ecosystems, where I can drive end-to-end feature delivery, mentor engineering teams, and optimize application performance at scale. Passionate about clean architecture, Agile practices, and leveraging AI tools like Claude and GitHub Copilot to boost delivery velocity.

Experience

Deloitte

Software Engineer II – Frontend Development

Deloitte

Mar 2025 – Present

• Design and deliver enterprise-grade UI solutions using React.js, Redux, and component-based architecture, ensuring seamless integration with backend services and REST APIs. • Drive end-to-end feature development lifecycle, from requirement analysis and technical design through implementation, testing, and production deployment. • Leverage AI-assisted development tools including Claude and GitHub Copilot to accelerate delivery timelines and maintain enterprise code quality standards. • Collaborate with cross-functional global teams including designers, backend engineers, and business stakeholders to translate complex business requirements into scalable frontend solutions. • Champion code quality through peer reviews, adherence to coding standards, and implementation of reusable component libraries.

React.jsReduxREST API
Appinventiv

Frontend Developer – Premium Client Support

Appinventiv

Jan 2025 – Mar 2025

• Managed customer support tickets for premium enterprise clients, consistently maintaining a strict 12-hour turnaround time (TAT) SLA. • Diagnosed, debugged, and resolved production-level frontend issues to ensure 99%+ uptime for high-priority accounts. • Coordinated with QA, backend, and DevOps teams to deliver rapid hotfixes and maintain client satisfaction.

Frontend DebuggingQA CoordinationProduction Support
Sopra Steria

Frontend Developer / Team Lead

Sopra Steria

Jul 2021 – Jan 2025

• Architected and built reusable React component libraries, optimizing web application performance and scalability by 35% across multiple international client projects. • Implemented RTK Query for efficient state management and API caching, resulting in a 40% improvement in product performance and user experience. • Led a development team as Team Lead and Mentor, conducting code reviews, facilitating sprint demos, and onboarding junior developers in Agile/Scrum methodologies. • Independently owned user stories and Epics end-to-end, from requirement analysis to deployment, while resolving complex production bugs and UAT issues. • Engineered responsive, cross-browser-compatible UI components using React, JavaScript, HTML5, and CSS3, ensuring accessibility and performance across devices. • Partnered with international stakeholders and product owners to translate business requirements into clean, maintainable, and scalable code solutions.

ReactRTK QueryJavaScript

Education

Ajay Kumar Garg Engineering College

Ajay Kumar Garg Engineering College

Bachelor of Technology · Computer Science

2021

Government Polytechnic, Bijnor

Diploma · Computer Science and Engineering

2018

Certifications

Generative AI fundamental

Sopra steria

Jun 2024 – No expiry

Skills

Context APISCSSTypescriptGitWebpackREST APICSS3HTML5Express.jsNode.jsRTK QueryReact RouterReduxReactJavaScript

Languages

Hindi (Native or bilingual proficiency)English (Full professional proficiency)