dennyyangbb

1. Scaled system in 3 months to enable 10x brand growth, 3x regional expansion, and 14x cryptocurrency payment options within a year: Optimized Java and system architecture, ensuring seamless scalability to support rapid growth. 2. Reduced AWS expenses by 55% and deployment costs by 50% in 2 months through optimization: Optimized AWS configurations, streamlined CI/CD processes, and implemented monitoring. 3. Implemented security best practices in a Spring Cloud microservices architecture, protecting against CSRF, securing authentication with JWT, and enforcing RBAC for access control.

1. Drove continuous innovation to support $100M in orders: Worked across frontend, backend, cloud, containerization, observability, data analysis, ETL, CI/CD, and web scraping. 2. Transformed legacy systems into Java & OpenShift microservices in 6 months—12,960x faster than an 18-year alternative: Achieved rapid transformation using Java, Oracle semantic analysis. 3. Led AWS market entry, securing contracts worth $10M: Established site-to-site VPNs, Oracle, AWS container services, JBoss, CI/CD, OpenShift, EKS, MQ, and observability solutions.

Cut analysis, design, and development time by 45% in 2 weeks to transform mainframe system for a banking client: Streamlined analysis/design documentation, code review, and webinars. Optimized slow SQL queries in Oracle, achieving 100x performance improvement: Used SQL Tuning Advisor and performed a comprehensive review of slow SQL queries. Enhanced CI/CD pipelines, reducing build times by 8x: Reviewed build settings and build observability to identify performance bottlenecks and optimize the process. Conducted comprehensive static application security testing using HP Fortify. Architected and implemented Spring Cloud and Spring Security.

Optimized Java performance by 10x and Oracle performance by 8x, improving ETL processes: Used Java VisualVM, analyzed slow SQL queries, and provided consulting on ETL workflow optimization. Built scalable AWS services using VPC, EC2, RDS, and ALB to support system growth and flexibility. Integrated AWS IAM and Cognito for identity management.

Secured multiple international trips through sales achievements and, by implementing information technology, led the sales division to achieve the top rank in Taiwan for over five consecutive years.