Singapore
Full-stack Software Engineer at Visa with a proven track record of modernizing legacy systems, scaling enterprise data architectures, and managing high-throughput platform infrastructure. Transitioned a strong foundational background in physical architecture into enterprise software engineering, bringing a unique perspective to structural logic, system design, and complex problem-solving. Specialized in building robust web applications and data orchestration tools using Angular and Spring Boot, with deep experience in processing high-volume datasets across complex enterprise data virtualization layers and analytical environments.
Manage the full end-to-end ownership and architectural evolution of the platform. Spearheaded a major modernization initiative to clear critical technical debt and upgrade legacy system components. Architected a major data expansion by evolving the application from a single, isolated database to a unified system connecting to complex enterprise sources including Denodo virtualization layers and SSAS cubes, enabling the platform to process millions of rows of data. Engineered a robust, asynchronous query execution and scheduling engine that automates background data processing and distributes time-sensitive reports to business users. This system streamlines critical operational workflows, introduces real-time ad-hoc query capabilities, optimizes cross-platform connections for heavy daily data loads, and maximizes overall application availability.
Operated as a full-stack developer to design and deliver critical internal platform features. Engineered secure administrative tools on the UI to streamline user management and platform controls for admin users. Focused heavily on system security and enterprise access control by integrating LDAP, Active Directory (AD) groups, and role-based access control (RBAC) systems. Collaborated with the core engineering team to bridge frontend components with backend services using Angular and Spring Boot, establishing a strong foundation in enterprise application security and identity management.
Selected for the competitive Visa Technology Traineeship Program (VTTP) to successfully pivot from the physical architecture field into enterprise software engineering. Dedicated the training phase to rapidly mastering core software design principles, algorithms, and full-stack development methodologies across Spring Boot, Angular, relational databases, and RESTful API architecture. Transitioned to hands-on project delivery by focusing on backend quality assurance for production services. Executed comprehensive regression testing and unit testing for critical API endpoints within microservices architectures, leveraging dependency mocking to isolate components and ensure robust service reliability.