Java Developer

Designed and developed scalable Java web applications using Spring Boot and Java, integrating with React and RESTful APIs for healthcare and government clients. Built hospital, barangay, and school management systems utilizing PostgreSQL, MySQL, and MongoDB databases to support complex data requirements. Developed backend services with AWS cloud infrastructure, WebSockets, GraphQL, and microservices architecture, incorporating CI/CD pipelines for continuous delivery. Implemented secure authentication and authorization using JWT and RBAC, following OWASP security standards to protect sensitive data. Optimized application performance through database query tuning, caching strategies, and Docker containerization, reducing load times by up to 30%. Applied Agile methodologies and automated testing with Git and GitHub Actions to maintain high code quality and consistent software delivery. Collaborated with clients to gather requirements and deliver customized enterprise Java solutions aligned with business goals.

Developed responsive web applications using TypeScript, React, Angular, and Material UI, enhancing user experience for healthcare and education sectors. Created management systems with real-time updates via WebSockets and interactive dashboards, ensuring seamless data flow and UI consistency. Managed complex frontend state with Redux, Zustand, and NgRx to support scalable workflows and maintainable codebases. Improved application load times by 30% through code splitting, lazy loading, and CDN caching techniques. Built reusable component libraries to enforce consistent design standards across multiple projects. Implemented JWT and RBAC for secure route protection and role-based UI rendering in web applications. Collaborated with clients on UI/UX requirements and utilized Agile, Git, GitHub Actions, and Cypress/Jest for testing and CI/CD.

Delivered scalable Java-based web, desktop, and mobile applications for healthcare, education, and government clients using Spring Boot, React, and Node.js. Developed and maintained hospital, barangay, and school management systems with RESTful APIs and databases including PostgreSQL, MySQL, MongoDB, and Redis. Built backend services leveraging AWS cloud, WebSockets, GraphQL, microservices architecture, and CI/CD pipelines for efficient deployment. Implemented secure authentication and authorization using JWT, RBAC, and OWASP-compliant security practices to safeguard applications. Enhanced system performance by optimizing database queries, applying caching strategies, and containerizing applications with Docker, reducing load times by 30%. Followed Agile methodologies, automated testing, and GitHub Actions to ensure maintainable and scalable software delivery. Collaborated with clients and cross-functional teams to define requirements and deliver tailored enterprise Java solutions. Applied software architecture best practices to design scalable and maintainable distributed systems.