Senior Software Engineer and Architect with over 20 years of experience in cloud technologies, AI, and full-stack Java development. Proven track record at IBM, leading large-scale projects and delivering innovative solutions for clients like Hertz and Visteon. Expertise in microservices, BI applications, data architecture, ETL processes, and interactive reporting. Ph.D. in Computer Science enhances analytical and problem-solving capabilities. Adept at integrating new technologies, optimizing… Show more Senior Software Engineer and Architect with over 20 years of experience in cloud technologies, AI, and full-stack Java development. Proven track record at IBM, leading large-scale projects and delivering innovative solutions for clients like Hertz and Visteon. Expertise in microservices, BI applications, data architecture, ETL processes, and interactive reporting. Ph.D. in Computer Science enhances analytical and problem-solving capabilities. Adept at integrating new technologies, optimizing performance, and managing cross-functional teams. Skilled in cloud deployments, containerization, and security enhancements. Committed to delivering high-quality, efficient, and scalable solutions. Show less

• Led a team of developers, conducting code reviews and improving code quality for Hertz's core rental management systems.• Drove high availability (99.9%) and handled high transaction volumes, adding new features and managing customer change requests.• Architect and designed for the refactorization and containerized monolithic applications into microservices using Docker and AWS EKS, improving performance by 70%.• Migrated user authentication and authorization to Okta OAuth and… Show more • Led a team of developers, conducting code reviews and improving code quality for Hertz's core rental management systems.• Drove high availability (99.9%) and handled high transaction volumes, adding new features and managing customer change requests.• Architect and designed for the refactorization and containerized monolithic applications into microservices using Docker and AWS EKS, improving performance by 70%.• Migrated user authentication and authorization to Okta OAuth and transitioned services to REST API for enhanced security and usability. Show less

• Architected and Created a mobile app with dashboards, charts, and grids for real-time company performance analysis.• Scrum Master Role: Led agile meetings, identified issues, facilitated solutions, and built team consensus.• Achieved nearly 100% on-time deliveries through agile development methodology.

• As BI application Architect, Led the BI service establishment for finance as a tech lead from IBM's Business Intelligence Center of Excellence.• Analyzed requirements, created work breakdown structures, and set up efficient data transfer processes (ETL).• Established Cognos BI services with initial reports and trained the team.• Trained on HIPAA and HITECH requirements.

Created, maintained, and managed over 100 IBM corporate internal and client Business Intelligenceapplications. Mr. Li was the key technical team lead. He led the development efforts for new engagements and old application changes; each engagement typically included a group of 5 - 10 developers and 6 months of developing time.● While maintaining, and supporting numerous (up to 10 or more) applications at the same time, balance the time andmake all the different applications… Show more Created, maintained, and managed over 100 IBM corporate internal and client Business Intelligenceapplications. Mr. Li was the key technical team lead. He led the development efforts for new engagements and old application changes; each engagement typically included a group of 5 - 10 developers and 6 months of developing time.● While maintaining, and supporting numerous (up to 10 or more) applications at the same time, balance the time andmake all the different applications succeed.● The data used included Finance, Ledger, HR, Sales, Client Management, Business Partners, External Customers,Government contracts, Loan and Trial for sales, Supply Chain, Service Level management, Workflow management,etc. Etc. together with the data architects, create the ETL processes that efficiently gather the necessary data forthe BI needs.● Created BI applications that included dashboards, charts, grids, maps, histograms, dynamic statistics, etc.Researched on possibility and impact of new technologies to be applied, such as inclusion of JQuery in the CognosBI dashboards and reports and made them much more interactive.● The technologies used included:- the Full suite of IBM Cognos BI applications and tools, Hyperion/Brio Designer, Brio On-Demand Server,Hyperion Insight, Hyperion Performance Suite.- Connecting to databases including DB2 9/8/7, Netezza (PDA), Informatica,- Operating systems: AIX, Linux, IBM Mainframe and Windows.- Version control on MS visual source safe.- Web Service: IBM Websphere Show less