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I am a software engineer with over 10 years of experience building scalable, high-performance web applications using React JS, Vue.js, TypeScript, and modern JavaScript. I design and document core UI elements and maintain typography, color, and icon standards while architecting Gen AI–driven React applications that integrate OpenAI and LangChain APIs for intelligent text generation. I collaborate closely with product and UX teams to iterate layouts and prototypes until visual and functional alignment is achieved. My strengths include modular UI component design, robust state management (Redux, context API, Recoil), REST/GraphQL API integration, secure auth (JWT, OAuth), accessibility audits (WCAG 2.1, WAI-ARIA), and cloud deployments (AWS, Azure, GCP) with CI/CD pipelines. I excel at turning requirements into wireframes and storyboards, ensuring accessibility from prototype to production, and delivering cloud-ready deployments with a strong emphasis on testing (Jest, Cypress) and performance optimization.…I am a software engineer with over 10 years of experience building scalable, high-performance web applications using React JS, Vue.js, TypeScript, and modern JavaScript. I design and document core UI elements and maintain typography, color, and icon standards while architecting Gen AI–driven React applications that integrate OpenAI and LangChain APIs for intelligent text generation. I collaborate closely with product and UX teams to iterate layouts and prototypes until visual and functional alignment is achieved. My strengths include modular UI component design, robust state management (Redux, context API, Recoil), REST/GraphQL API integration, secure auth (JWT, OAuth), accessibility audits (WCAG 2.1, WAI-ARIA), and cloud deployments (AWS, Azure, GCP) with CI/CD pipelines. I excel at turning requirements into wireframes and storyboards, ensuring accessibility from prototype to production, and delivering cloud-ready deployments with a strong emphasis on testing (Jest, Cypress) and performance optimization.

Hepzibha Sundararaj

Web Developer, Front-End Developer, Back-End Developer, +2

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I am a software engineer with over 10 years of experience building scalable, high-performance web applications using React JS, Vue.js, TypeScript, and modern JavaScript. I design and document core UI elements and maintain typography, color, and icon standards while architecting Gen AI–driven React applications that integrate OpenAI and LangChain APIs for intelligent text generation. I collaborate closely with product and UX teams to iterate layouts and prototypes until visual and functional alignment is achieved. My strengths include modular UI component design, robust state management (Redux, context API, Recoil), REST/GraphQL API integration, secure auth (JWT, OAuth), accessibility audits (WCAG 2.1, WAI-ARIA), and cloud deployments (AWS, Azure, GCP) with CI/CD pipelines. I excel at turning requirements into wireframes and storyboards, ensuring accessibility from prototype to production, and delivering cloud-ready deployments with a strong emphasis on testing (Jest, Cypress) and performance optimization.…I am a software engineer with over 10 years of experience building scalable, high-performance web applications using React JS, Vue.js, TypeScript, and modern JavaScript. I design and document core UI elements and maintain typography, color, and icon standards while architecting Gen AI–driven React applications that integrate OpenAI and LangChain APIs for intelligent text generation. I collaborate closely with product and UX teams to iterate layouts and prototypes until visual and functional alignment is achieved. My strengths include modular UI component design, robust state management (Redux, context API, Recoil), REST/GraphQL API integration, secure auth (JWT, OAuth), accessibility audits (WCAG 2.1, WAI-ARIA), and cloud deployments (AWS, Azure, GCP) with CI/CD pipelines. I excel at turning requirements into wireframes and storyboards, ensuring accessibility from prototype to production, and delivering cloud-ready deployments with a strong emphasis on testing (Jest, Cypress) and performance optimization.

Available to hire

I am a software engineer with over 10 years of experience building scalable, high-performance web applications using React JS, Vue.js, TypeScript, and modern JavaScript. I design and document core UI elements and maintain typography, color, and icon standards while architecting Gen AI–driven React applications that integrate OpenAI and LangChain APIs for intelligent text generation. I collaborate closely with product and UX teams to iterate layouts and prototypes until visual and functional alignment is achieved.

My strengths include modular UI component design, robust state management (Redux, context API, Recoil), REST/GraphQL API integration, secure auth (JWT, OAuth), accessibility audits (WCAG 2.1, WAI-ARIA), and cloud deployments (AWS, Azure, GCP) with CI/CD pipelines. I excel at turning requirements into wireframes and storyboards, ensuring accessibility from prototype to production, and delivering cloud-ready deployments with a strong emphasis on testing (Jest, Cypress) and performance optimization.

Skills

Experience Level

Expert

Expert

Expert

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Expert

Expert

Expert

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Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Sr. React JS Developer at Conduent (Freddie Mac)

February 1, 2022 - Present

Built full-stack apps using React, Vue, Node, Flask, and Django connected to SQL and NoSQL databases. Designed REST and GraphQL APIs, translated requirements into clear user flows, wireframes, and interface specs. Identified UX friction and delivered targeted design fixes; embedded accessibility into the design system; reviewed mockups and component libraries for color contrast and keyboard operability. Led cross-functional collaboration to evangelize accessibility practices and delivered responsive UIs with modern state management. Automated CI/CD with Jenkins, Docker, Kubernetes, AWS Lambda, and S3; ensured security with IAM and KMS; achieved runtime stability with >85% test coverage.

Sr. React JS Developer at State Street Bank, Boston, MA

August 1, 2019 - January 31, 2022

Delivered scalable SPAs and mobile apps using React, Next.js, Redux-saga, and React Native. Integrated Node.js/Express backends with REST and GraphQL for real-time data. Enhanced UI with Material UI, Bootstrap, Tailwind, SASS/SCSS and responsive grids. Instituted internal accessibility guidelines and linting to prevent regressions, migrated legacy Angular apps to React/Next.js, and built async state flows with Redux-saga. Managed serverless deployments on AWS and ensured WCAG 2.x compliance across enterprise applications.

UI Developer/React JS Developer at Johnson & Johnson, New Brunswick, NJ

May 1, 2017 - July 31, 2019

Developed micro-frontend components and SPAs with Node, Flask, FastAPI, and Django APIs. Implemented state management with Redux-saga and MobX; optimized frontend performance via memoization, lazy loading, and code-splitting. Built cloud-native apps on AWS Lambda/ECS and practiced TDD with Jest, Mocha, and Enzyme to maintain high test coverage. Led accessibility initiatives and collaborated with UX teams to deliver consistent designs.

UI Developer/React JS Developer at Alliance Insurance, Arlington, TX

January 1, 2016 - April 30, 2017

Built SPAs using React/Redux/Router for dynamic, responsive interfaces. Secured apps with JWT auth and CSRF tokens. Created RESTful APIs with Node and Flask for data exchange and validation. Developed cross-browser UIs with HTML5, CSS3, and Bootstrap; managed Git, Bitbucket, and Jira for version control and Agile tracking.

UI Developer at Rank Cranes Pvt. Ltd, Hyderabad, India

July 1, 2013 - February 28, 2014

Built interactive UIs using HTML, CSS, JavaScript, and jQuery. Integrated AJAX/JSON for responsive data flows; debugged and optimized UI code with Chrome DevTools and Firebug; used Grunt and media queries for mobile-friendly layouts; coordinated with backend teams to test features and improve reliability.