MM

Senior Frontend Developer

React | Next.js | TypeScript | JavaScript(ES6) | HTML/CSS

Senior Frontend Developer with 8+ years of experience designing and building scalable, high-performance web applications using React, Next.js, and TypeScript. Strong background in product-based environments, enterprise platforms, and startup projects from scratch, including UI architecture and component libraries. Experienced in SSR, performance optimization, accessibility (WCAG), and API-driven systems. Comfortable working in distributed Agile teams with international clients.

Responsive Web DesignAccessibility (WCAG / A11y)System Design (Frontend Architecture)API-Driven DevelopmentTesting & Code QualityAI-Assisted Frontend DevelopmentTest Driven Development (TDD)SSR / SSG Optimization (Next.js)Search Engine Optimization (SEO)
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Skills and Expertise

Expertise in frontend development, with a strong focus on React, Next.js, TypeScript, and JavaScript (ES6+). Experienced in building scalable, high-performance web applications using modern frontend technologies and best practices.

Frontend Development
React, Next.js, TypeScript, and UI engineering.
Primary Focus
React.jsExpert
Building scalable, component-driven UIs with hooks, context, and performance optimizations.
Next.jsAdvanced
Server-side rendering, routing, authentication, and SEO-optimized React applications.
TypeScriptAdvanced
Strongly typed JavaScript for safer, maintainable, and scalable codebases.
JavaScript (ES6+)Expert
Modern JavaScript features, async programming, and functional patterns.
HTML/CSSExpert
Semantic HTML and responsive, accessible layouts using modern CSS techniques.
Tailwind CSSAdvanced
Utility-first CSS for rapid UI development with consistent design systems.
MUIAdvanced
Material UI components, theming, and customization for enterprise-grade applications.
State Management & Forms
Data fetching, validation, and async workflows.
Support Strengths
ReduxAdvanced
Centralized state management using modern Redux patterns and best practices.
RTK QueryAdvanced
Efficient data fetching, caching, and API state management.
Redux-SagaIntermediate
Handling complex side effects and asynchronous workflows.
React Hook FormAdvanced
Performant form handling with minimal re-renders and strong validation support.
ZodAdvanced
Schema-based validation and type-safe form and API data validation.
Backend Development & APIs
APIs, integrations, and platform collaboration.
Support Strengths
Node.jsAdvanced
Building scalable backend services and APIs using JavaScript runtime.
Express.jsIntermediate
RESTful API development with middleware-based architecture.
GraphQLIntermediate
Flexible data querying and schema-driven API design.
REST APIsAdvanced
Designing and consuming secure, scalable RESTful services.
MongoDBIntermediate
NoSQL database design, aggregation, and data modeling.
Testing & Tooling
Testing, quality, and frontend tooling.
Support Strengths
JestAdvanced
Unit and integration testing for JavaScript and React applications.
MSWIntermediate
Mocking API requests for reliable frontend testing.
StorybookAdvanced
Isolated UI component development and documentation.
ESLintAdvanced
Maintaining code quality and enforcing consistent coding standards.
PrettierAdvanced
Automated code formatting for clean and consistent codebases.
DevOps
Support Strengths
GitAdvanced
Version control, branching strategies, and collaborative workflows.
GitHub ActionsIntermediate
Automated CI/CD pipelines for testing and deployments.
DockerIntermediate
Containerizing applications for consistent development and deployment.
CI/CDIntermediate
Continuous integration and deployment for faster, reliable releases.
Amazon Web Services (AWS)Advanced
Cloud infrastructure, deployment, and scalable backend services.
AzureAdvanced
Enterprise cloud services, DevOps pipelines, and application hosting.

Work Experience

Work experience in frontend development, with a strong focus on React, Next.js, TypeScript, and JavaScript (ES6+). Experienced in building scalable, high-performance web applications using modern frontend technologies and best practices.

Senior Frontend Developer — Toptal (Endpoint Clinical, USA)Mar 2023 – Present
Enterprise platform·Remote
Led frontend development of large-scale React and Next.js applications supporting clinical trial workflows for enterprise healthcare clients
Designed and owned scalable frontend architecture and reusable component libraries, reducing feature development time by ~30%
React Developer — Cognizant, BengaluruAug 2021 – Mar 2023
Enterprise platform·Remote
Developed and maintained enterprise-scale React applications serving thousands of internal and external users
Built reusable, modular UI components using React, TypeScript, and Material UI, improving development consistency across teams
Full Stack Developer — Aapna Infotech, DelhiDec 2020 – Aug 2021
Enterprise platform·Remote
Developed end-to-end web applications using React, Material UI, Node.js, and GraphQL
Built and maintained REST and GraphQL APIs to support frontend features and third-party integrations
Application Developer — Tata SteelAug 2018 – Dec 2020
Enterprise platform·Remote
Developed internal enterprise web applications and dashboards supporting manufacturing and operational teams
Worked with JavaScript, HTML, CSS, and early React-based components for frontend development

Featured Projects

Hand-picked work that best represents how I design, build, and ship frontend experiences.

6 case studies
Data Migration Tool interface screenshot
Data Management

Data Migration Tool

Tool for migrating data between legacy and modern systems.

ReactNode.jsGraphQLPub/Sub

Affiliations & Certifications

Interactive overview of key credentials and progress.

Toptal – Top 3% Global Talent Network

I have been a member of Toptal for over three years, a global network that connects the top 3% of freelance software developers with leading companies worldwide.

Toptal’s rigorous screening process evaluates technical expertise, problem-solving ability, and communication skills. Being part of this network has allowed me to collaborate with international product teams and deliver production-grade, scalable solutions.

View Toptal Profile →
TOP 3% TALENT
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Certifications

Interactive overview of key credentials and progress.

Education & Languages

Computer science fundamentals with a frontend focus. Comfortable in international teams.

Education
Computer science fundamentals with a frontend focus.
Bachelor of Technology (B.Tech) - Information Technology
BIT Sindri, Dhanbad (Vinoba Bhave University) · 2014 – 2018
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Languages
Comfortable in international teams.
EnglishProfessional Working Proficiency
HindiNative / Bilingual Proficiency
GermanBeginner (A1)

Get In Touch

Have a project, opportunity, or question? I usually respond within one business day.

Available for frontend opportunities in Bengaluru / Remote.
EmailGitHubLinkedIn
+91 7563979475 / 8804049859
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