Front End Developer

Working in Cross-functional team, define and implement Agile methodologies to build and launch several web applications across a variety of industries including E-commerce, and Fintech. Designed and implemented the Data Pipeline architecture using AWS services. Implemented batch processing using SQS service and Lambda function, enabling high-performance and cost-effective solutions for processing real-time data. Defined and Implemented the Rollback functionalities using AWS step function service, improving the reliability to prevent the blocking on the pipeline. Implemented the Notification Management using CRON job and email service, improving the effective notification management. Implemented building and testing the UIs using Storybook component library for a high-traffic React application, optimizing development speed and maintaining a cohesive user experience throughout the platform. Implemented TDD methodologies using Jest and Cypress, resulting in improved code quality, faster identification of defects, and enhanced overall reliability of software applications. Utilized Docker containers to enhance scalability and deployment efficiency of a web application, resulting in reduction in deployment time and increased in system uptime.

Participated in NFT marketplace, led the Front-end developer team of 4 members and contributed to successful launching the project. Scheduling and delegating of MERN stack work items to a team, resulting in making obvious plan and keeping the deadline. Utilized GraphQL and React Query into Frontend application effectively retrieving and managing data from multiple sources, resulting in improved performance and a seamless user experience. Improved website performance and search engine visibility by implementing server-side rendering (SSR) using Next.js, which optimized initial page load times and enabled more efficient content indexing. Reflected the existing Front-end architecture of an e-commerce site to Micro-Frontend, resulting in improved scalability, enhanced development efficiency. Implemented the semantic HTML5 markup, keyboard navigation and sizing option throughout the project, enhanced the Accessibility and search engine optimization (SEO) by providing clear and meaningful structure and improving user experience. Mentored junior developers through Pair Programming and comprehensive code reviews to ensure constant team growth and the highest quality of deliverables.

Designed and implemented a Microservice architecture for a payment system, allowing for seamless integration with External APIs and improving overall Scalability and Maintainability which reduced the deployment time and development time. Developed complex, efficient RESTful APIs using Node.js and Express, facilitating seamless integration with front-end applications and enabling efficient data exchange. Built a serverless API using Node.js and AWS Lambda functions that connects a web application to a third-party service, SendGrid to send email and SMS notifications. Improved frontend application performance by implementing AWS CloudFront CDN, resulting in faster content delivery and improved user experience. Implemented DataBase migration from MySQL to MongoDB using Node.js, Mongoose, ensuring seamless transition and preserving data integrity during the migration process. Effectively addressed slow load times caused by N+1 query issue in GraphQL API by implementing batching techniques and DataLoader, resulted in acceleration in data loading. Used the Wrapper provider of React components for Error Handling in Front End development and reduced the 1000+ lines of Codes for Error Handling. Implemented comprehensive Unit Tests, Integration Tests, and E2E Tests using Jest and Cypress to ensure high test coverage and robustness of the application, leading to ensure in the software's reliability. Designed and implemented a TypeORM database schema for a Typescript project, improving data consistency and reducing SQL injection vulnerabilities.

Optimized front-end performance by implementing advanced caching strategies, resulting in reducing maximum of page responding time and increase in overall site speed. Built the next version of client web application to add new user designs and features using React.js, reducing reported bug issues. Created interactive user interfaces with Reusable components using React or Angular, Vue.js, resulting in enhanced code maintainability and improved development efficiency. Worked with the design team to make visual mockups into pixel-perfect web pages, ensuring high fidelity and attention to detail in the implementation process. Created a Mobile Responsive web design to improve user experience with CSS Flexbox, result in increasing the number of 5-star User Experience/User Interface reviews. Resolved cross-browser compatible and accessibility compliant websites, resulting in faster load time. Produced visual elements of web applications by translating UI/UX design wireframes into code, producing high quality markup using HTML5 and CSS3.