• Conducting weekly meetings with project owners and caregiving facility CEO to understand and translate business requirements into technical solutions ensuring seamless integration and optimal performance.• Collaborating with two backend developers to design the application structure and APIs and determine structure and format of the application data.• Creating over 10 re-usable frontend UI components using React Native and TypeScript, applying CSS for component styling.• Designing and Developing backend JSON REST APIs written in Node.js and Express.js to retrieve patients' time-series data from an AWS-hosted DynamoDB, integrating them to frontend application for data visualization purposes.• Implementing real-time data streaming from patient wearables in JSON format using WebSocket for continuous health monitoring.• Integrating remote control features to frontend application for room lighting and temperature through REST API calls to respective controllers.• configuring stack and tab navigation structures using React Navigation and Expo file-based routing system, ensuring a seamless and responsive user experience.

• Collaborated with cross-functional teams to ensure proper data formatting and compatibility with other codebases.• Adhered to agile methodology, utilized Jira for project management, and Bitbucket and Git for version control and code reviews.• Developed and maintained frontend components using React.js, TypeScript and Mantine UI to create responsive and dynamic user interfaces.• Handled asynchronous REST API requests and responses for seamless data interaction in JSON format between frontend and backend to send necessary configuration data to the card sorting machine.• Designed and implemented backend APIs with Node.js, Express.js, and TypeScript following a three-layer architecture: controller, service, and data access layers.• Transformed the format of existing TCG card data in the system database by implementing backend rules to export them as a properly formatted CSV file for integration with a POS website, as requested by store owners.• Wrote over 200 test cases using Jest to ensure proper and bug free functionality of backend APIs.• Integrated over 5 external API endpoints into the backend system to fetch necessary TCG card data for further usage by the frontend application.

• Developed a secure authentication system utilizing traditional username and password methods, and managed sessions in Node.js and Express.js.• Implemented LinkedIn OAuth2 API as an alternative authentication option, retrieving user identities from LinkedIn profiles after obtaining access tokens. Additionally, incorporated a random state in the session and validated it in the callback URL to prevent CSRF attacks.• Designed multiple responsive UI components for the site's Navbar, home page, and blog page using React.js. • Conducted thorough testing and debugging of both frontend and backend components to ensure robust and reliable functionality

• Developed various responsive user interface components using HTML, CSS, JavaScript, and React.js for an online survey application, allowing users to share their opinions and thoughts through surveys.• Implemented backend functionality in Node.js and Express.js to capture users' contact information submitted via forms on the user interface, and utilized this data to send emails to the website admin.• Ensured seamless integration between frontend and backend components, resulting in a smooth and efficientuser experience.