MARK SUNDER SINGH

Company Overview: Client: Westpac Banking Corporation, Australia (BFSI Sector)

• Developed and maintained high-performance, scalable Java applications for enterprise-level systems, ensuring code quality through rigorous testing, debugging, and code reviews
• Enhanced legacy Java web applications using JSP, integrating Spring Framework for backend services to improve functionality and user experience
• Developed RESTful APIs with Spring Boot, ensuring seamless integration with SQL databases and enhancing backend functionality
• Applied object-oriented principles, including interfaces, abstraction, method overloading, and overriding, to improve code maintainability and extensibility
• Implemented advanced security measures to protect applications from SQL injection and cross-site scripting (XSS) attacks, reducing vulnerabilities by 40% through parameterized queries, input validation, and output encoding
• Debugged and resolved critical production issues, reducing downtime by 25% and ensuring continuous application stability
• Managed version control using CVS, handling over 200 code check-ins, check-outs, branching, and merging, ensuring smooth and consistent development workflows

Company Overview: Client: Citi Bank

• Experienced with the implementation of UI components, forms, and basic functionality based on design specifications and user requirements
• Utilized Angular Material's responsive layout features to ensure consistent user experiences across various devices and screen sizes
• Used Bootstrap's pre-styled UI components (buttons, forms, navigation bars, cards, modals) to streamline development and improve user experience
• Proficient in writing unit test cases using Jest framework for various scenarios, including asynchronous code, error handling, and edge cases
• Effectively used Jest's matchers and assertions to validate expected outcomes, ensuring robust and error-free front-end functionality