Karan Mahajan Email and Phone Number

• Led the front-end redesign of the website using Wix, collaborating with a teammate to create an intuitive, user-friendly interface for customers to submit and track sample results.• Enhanced back-end functionality by creating and updating custom database collections using Wix’s internal CMS, adding new fields and ensuring seamless data management for customer profiles.• Developed a dynamic user interface (UI) to display sample submission statuses, allowing customers to view results directly on their profile pages, improving user engagement and accessibility.• Integrated RESTful APIs and utilized Velo by Wix to manage server-side logic, ensuring smooth interaction between the front-end and back-end systems, enhancing overall site functionality.• Implemented SEO best practices, optimizing the website for search engines to improve visibility and ranking, driving more traffic and improving overall discoverability.• Utilized JavaScript for custom functionalities, enabling dynamic content rendering and improving the interactivity of the website, resulting in a more seamless user experience.• Collaborated with cross-functional teams to ensure smooth project completion, from front-end development to back-end integration, maintaining a high level of communication and task delegation.

• Led the development of React components, integrating front-end with back-end using Node.js and MongoDB, ensuring web accessibility following WCAG standards.• Utilized Storybook to create modular, reusable components with customizable controls, enabling seamless integration into various projects, improving development efficiency by 20%.• Applied Jest to test each component and website functionality, ensuring they passed all edge cases and scenarios for reliability and performance.• Managed the project independently, overseeing the team, assigning tasks in Jira, and documenting processes in Confluence, while conducting scrum meetings in an Agile/Scrum environment.• Built and maintained an npm library for React components, and developed a Stencil.js web components library that supported multiple frameworks (React, Angular, Vue), reducing integration time across projects by 15%.• Collaborated closely with the front-end and back-end teams, ensuring smooth integration and communication, which improved overall project turnaround time by 10%.• Worked with both TypeScript and JavaScript in React-based projects, depending on project requirements.• Applied best practices in front-end development using SCSS, JavaScript, HTML, CSS, and jQuery.• Managed version control with Bitbucket, conducted code reviews, and merged pull requests using Git.

• Developed a responsive website for a nature-focused customer using HTML and CSS, ensuring compatibility across devices and enhancing user experience, resulting in a 15% increase in user engagement.• Built a fitness app dashboard using React and TypeScript, integrating charts, tables, and date pickers with Material UI components, improving data visibility and functionality. Deployed the project on Vercel for seamless production.• Created custom components using CSS and BEM (Block Element Modifier) methodology to ensure code scalability and maintainability.• Deployed websites using nginx for optimized performance and fast loading times, increasing website responsiveness by 20%.• Developed and integrated Node.js APIs, ensuring smooth communication between the front-end (React.js) and back-end (MongoDB/Node.js), optimizing data flow and improving system reliability.• Developed a Progressive Web App (PWA) for a women’s fitness and healthcare app using React.js and Next.js, making the app accessible on both desktop and mobile devices, which boosted mobile user retention by 25%.• Worked closely with clients, addressing last-minute service requests and implementing changes quickly, ensuring high customer satisfaction.• Conducted end-to-end testing for all projects and components using modern testing methodologies, ensuring stability, security, and a seamless user experience.

• Updated SQL queries and managed customer service requests by modifying records in the MySQL database, ensuring data accuracy and prompt response to client requests.• Collaborated on front-end development using JavaScript, HTML, and CSS, to implement new features and improvements for the company’s core product.• Enhanced back-end functionality by optimizing SQL queries, improving the performance and scalability of database interactions in a high-demand product environment.• Worked on Java-based backend services, adding new features like multi-attachment functionality in forms, by updating Java packages and testing thoroughly for quality assurance.• Leveraged AWS for cloud services, working on deploying product updates to the staging environment using Jenkins pipelines, ensuring smooth deployment and continuous integration (CI/CD).• Performed end-to-end testing for new features and bug fixes, improving the stability and reliability of the product.• Contributed to the automation of deployments and testing processes by implementing Jenkins pipelines, reducing the overall deployment time by 15%.

• Added form level validations using javascript• Created multiple infolets using PL/SQL queries• Changes in functions, procedure, and packages for debugging the issues• Resolving day-to-day production issues like Jira Tickets.• Creation of Unit Test Plans for User Acceptance.• Involved in Performing Change Requests and Bug fixing