- Develop user interfaces using modern front-end frameworks (React, Next.js, Angular, Vue.js). Ensure the implementation of responsive and adaptive design principles for optimal display across various devices.- Optimize web pages for maximum speed and scalability. Implement strategies for efficient loading and rendering, including code splitting and lazy loading.- Work closely with UX/UI designers to translate visual concepts into functional online experiences.- Collaborate with backend developers to integrate APIs and understand the server-side logic to ensure smooth data exchange between the server and the front end.- Implemente and manage state control using appropriate tools and frameworks, such as, Redux, Mobx, NgRx, Vuex, ensuring smooth data flow and responsive user interfaces.- Maintain high code quality and ensure adherence to coding standards. Use ESLint, Prettier and other tools to enforce code style and quality.- Write and maintain unit and integration tests using Jest, Mocha and Cypress. Debug issues across multiple browsers, optimizing the code as necessary.- Work with CI/CD tools, such as Jenkins, to automate testing and deployment processes on AWS S3.- Implement front-end security best practices to protect user data and mitigate risks from vulnerabilities such as XSS or CSRF attacks.

- Involved in creating Software Design Documents, Technical Design & Unit Testing Documents.- Developed consumer-based features and applications using Python, Django, HTML, Behavior Driven Development (BDD) and pair based programming.- Designed web site security (Cryptography X509, SSL extended validation certificates, IP restrictions, two-factor authentication). Designed email encryption on a web portal. Implemented OAuth 2.0 authentication, token authentication with OAuth, OAuth protocol for single sign-on, SSL client-side certificates (PKI) in Web API.- Responsible for managing AWS resources in cloud and maintaining Continuous Integration and Continuous Deployment pipeline for fast paced robust application development environment.- Participated in Agile & TDD methodology for application development & used JIRA as project management tool.

- Resolved communication problems between the design team and developers, reducing delivery times.- Implemented that mockup using ReactJS and migrated the old React 16.8 to a newer React version 18.- Created React components using JSX, followed FLUX design pattern for unidirectional data flow.- Used Redux Framework architecture (like Reducers, Containers, Saga) for integrating the data with React-Native Application.- Completed Video conference and Messaging system using WebRTC and WebSocket.- Used SSR for Increasing SEO performance and (Progressive Web App) PWA compliance for initial load and UX by setting headers implementing React-Helmet.- Followed Test drive development approach using the React Testing Library with 80% code coverage and - - Mentoring the team member with effective Usage o f the React Testing Library.- Worked remotely with professional, frequent, and open communication.

- Implemented new features using CSS3 such as Flexbox, CSS Sprites and Media Query with Grid System in Bootstrap to achieve Responsive Web Design. - Applied Use Case diagrams to validate and test web application design against the UI architecture.- Designed and developed Restful web APIs using node.js, express.js and MongoDB that were consumed by the angular and react frontend.- Interacted with other developers and end users to design and implement new features throughout the framework.- Designed and developed transactions and persistence layers to save/retrieve/modify data for application functionalities using Django and PostgreSQL.- Implementation of NodeJS based authentication service for fortune 500 using pingFederate and OAUTH.- Extracted data from PDFs, transformed in compliance with the client's data model, and loaded into the client's persistent storage.- Extensively used Promises and Event Emitter in Node.js to avoid callbacks and more readable code. - Worked with Passport and JSON web tokens for authentication and authorization security configurations using Node.js.- Worked with unit testing of JavaScript applications using Jasmine, Jest, enzyme and Integration test. - Worked with partners and clients at every stage of implementation of the integration, for instance to gather requirements, review completed implementation.