Mars Lee Email & Phone Number

Taipei, Taipei City, Taiwan

MySQL Performance Optimization: Addressed performance issues, adjusted indexes, cache techniques, and query plans, and introduced partitioning table technology to enhance system performance.Oracle Query Optimization: Handled complex queries, used EXPLAIN to analyze query plans, redesigned queries, and added indexes to reduce query runtime.High Availability Solution Design and Deployment: Ensured database reliability by implementing MySQL master-slave replication, read-write… Show more MySQL Performance Optimization: Addressed performance issues, adjusted indexes, cache techniques, and query plans, and introduced partitioning table technology to enhance system performance.Oracle Query Optimization: Handled complex queries, used EXPLAIN to analyze query plans, redesigned queries, and added indexes to reduce query runtime.High Availability Solution Design and Deployment: Ensured database reliability by implementing MySQL master-slave replication, read-write separation, and backup strategies, and configuring Oracle's read/write environment for high availability.Troubleshooting and Recovery: Quickly identified and resolved database failures, including crashes, online issues, and lock waits, and successfully recovered from unexpected shutdowns to maintain data integrity.Database Upgrades and Migrations: Managed cross-version database upgrade and migration projects, successfully upgrading MySQL and Oracle databases to ensure smooth data migration.Database Security Assurance: Ensured database security through permission settings, encryption, and access control, and designed and implemented security policies to protect sensitive information.Database Design and Optimization: Designed and optimized database architecture, utilized table partitioning and sharding technology to achieve system horizontal scaling.System Integration and Real-time Monitoring: Integrated monitoring systems for real-time performance monitoring, developed packages for real-time monitoring, and deployed Oracle Cloud Control for monitoring.Team Collaboration and Knowledge Transfer: Collaborated with the team to facilitate knowledge transfer, learned new technologies together, and participated in online communities and forums for continuous learning.Professional Consulting and Project Support: Provided professional advice, assisted in problem-solving, and ensured project progress by working overtime as needed. Show less

台灣 臺北市 內湖區

High Availability Database Architecture Design:Lead critical projects, plan high availability database structures.Implement partitioning table techniques for performance enhancement.Ensure continuous database operation and system stability during failures.Multi-Configuration Database Construction Projects:Participate in multiple database construction projects for system availability.Configure Single Instance, Real Application Clusters (RAC), and… Show more High Availability Database Architecture Design:Lead critical projects, plan high availability database structures.Implement partitioning table techniques for performance enhancement.Ensure continuous database operation and system stability during failures.Multi-Configuration Database Construction Projects:Participate in multiple database construction projects for system availability.Configure Single Instance, Real Application Clusters (RAC), and DataGuard.Develop educational training for team proficiency in database installation and configuration.Database Security and Risk Management:Focus on ensuring database security, create educational materials.Educate on security measures, best practices, and risk management.Maintain high database security levels.Troubleshooting and Performance Optimization:Resolve database failures, troubleshoot Oracle Exadata.Handle fault diagnosis and performance optimization for Oracle Exadata.Address issues with Oracle Zero Data Loss Recovery Appliance (ZDLRA) and Oracle Secure Backup (OSB), execute data recovery.MySQL Optimization and Horizontal Scaling:Assist clients with MySQL slow query issues, implement horizontal scaling.Conduct query performance analysis, provide optimization recommendations.Introduce sharding technology for MySQL horizontal scaling, improving performance. Show less

台灣 汐止區

Database Issue Handling and Troubleshooting:First-line support for various database issues, ensuring uninterrupted system operation.Ensure continuous stability and safeguard business continuity.Upgrading Databases to Oracle 19c:Lead entire database upgrade process, ensuring smooth completion.Minimize impacts on system and business operations.Managing Multiple Oracle and MySQL Databases:Manage various Oracle and MySQL databases, ensuring proper care and… Show more Database Issue Handling and Troubleshooting:First-line support for various database issues, ensuring uninterrupted system operation.Ensure continuous stability and safeguard business continuity.Upgrading Databases to Oracle 19c:Lead entire database upgrade process, ensuring smooth completion.Minimize impacts on system and business operations.Managing Multiple Oracle and MySQL Databases:Manage various Oracle and MySQL databases, ensuring proper care and maintenance.Ensure normal operation of systems through outstanding organizational skills.Database Performance Management:Monitor and manage Oracle and MySQL performance using various tools.Timely resolution of performance issues, enhancing database performance and response time.AWS Environment Database Management:Configure and manage RDS databases in AWS Cloud environment.Ensure smooth database operation in the cloud, participate in AWS Aurora scaling strategies.Performance Monitoring and Optimization:Use AWS RDS Performance Insights to monitor MySQL databases.Rapid identification and resolution of performance issues, ensuring seamless business operations. Show less

台灣 臺北市 大安區

Collaboration with Development Teams:Provide effective database solutions for app development.Ensure correct decisions and enhance app performance through collaboration.Technical Support and Monitoring:Offer crucial technical support, devise monitoring procedures.Ensure system stability by promptly addressing issues.Utilizing DB Tools:Perform database management tasks using tools like Toad, OEM, SQL Developer.Enhance efficiency and accuracy in… Show more Collaboration with Development Teams:Provide effective database solutions for app development.Ensure correct decisions and enhance app performance through collaboration.Technical Support and Monitoring:Offer crucial technical support, devise monitoring procedures.Ensure system stability by promptly addressing issues.Utilizing DB Tools:Perform database management tasks using tools like Toad, OEM, SQL Developer.Enhance efficiency and accuracy in database management.Database Backup and Restoration:Plan and execute logical and physical backups, ensure smooth restoration testing.Ensure data security and recoverability, minimize losses from failures.Production and Development Database Management:Lead management of production and development databases.Provide 24/7 support for continuous system operation.Collaboration with Other Teams:Work closely with app development, server, storage teams.Collaborate with IT department for smooth system operation.Database Architecture Design and Implementation:Design and implement systems with rich experience in Oracle RAC, MySQL Cluster.Successfully plan and execute migration plans.Troubleshooting:Handle database crashes, ensure data integrity.Provide stable and reliable support for database management. Show less

Taipei City, Taiwan

Multi-tech Field Application and Management Expert:Oversee management and application of technical domains like Billing, Weblogic, Jboss.Coordinate technology applications, provide management strategies for effective operations.Data Center Environment Monitoring Specialist:Monitor data center environment, track server activities to ensure security and stability.Establish monitoring systems, optimize them for efficiency and accuracy, reducing failure risks.24/7… Show more Multi-tech Field Application and Management Expert:Oversee management and application of technical domains like Billing, Weblogic, Jboss.Coordinate technology applications, provide management strategies for effective operations.Data Center Environment Monitoring Specialist:Monitor data center environment, track server activities to ensure security and stability.Establish monitoring systems, optimize them for efficiency and accuracy, reducing failure risks.24/7 Data Operations Center Monitoring Expert:Provide round-the-clock monitoring of data operations center screens, promptly addressing system issues.Collaborate with team to resolve abnormalities, minimizing losses and interruptions.Team Collaboration and Coordination Expert:Collaborate with customer service, server, storage, and network teams for system operation.Coordinate team tasks for effective integration and cooperation.Access Control System Design and Programming Specialist:Design and program access control systems for comprehensive security.Collaborate to customize access control systems, providing reliable security solutions. Show less

Network Firmware and Software Upgrades Expert:Lead team in network firmware upgrades (EPON, Cisco, CMTS) to maintain system performance.Develop upgrade plans, execute upgrades, and provide technical support post-upgrade.Customer Environment Equipment Installation and Configuration Specialist:Collaborate on installing and configuring EPON, CMTS, Dell servers, etc., for clients.Evaluate needs, design configurations, and provide training and support.Equipment… Show more Network Firmware and Software Upgrades Expert:Lead team in network firmware upgrades (EPON, Cisco, CMTS) to maintain system performance.Develop upgrade plans, execute upgrades, and provide technical support post-upgrade.Customer Environment Equipment Installation and Configuration Specialist:Collaborate on installing and configuring EPON, CMTS, Dell servers, etc., for clients.Evaluate needs, design configurations, and provide training and support.Equipment Environment Maintenance Expert:Maintain client equipment environments, including system cleaning and reporting.Support company services like VPN, DNS, Web, ensuring high availability.New Technology and Product Testing and Research Specialist:Research new products, particularly CMTS architectures, and establish testing environments.Collaborate on researching new company products, ensuring performance excellence.Bandwidth Manager Software Installation and Configuration Expert:Install bandwidth manager software and configure Oracle database 10g for optimal performance.Devise installation plans, execute configurations, and provide ongoing support. Show less

Network Monitoring and Troubleshooting Expert:Conduct detailed network checks for Xizhi and Keelung communities using monitoring systems.Collaborate to ensure stable community network operation and address abnormalities promptly.Customer Service and Troubleshooting Specialist:Promptly respond to customer network issue reports and coordinate repair schedules.Visit customers for line repairs and conduct post-repair tests for issue resolution.Customer Communication… Show more Network Monitoring and Troubleshooting Expert:Conduct detailed network checks for Xizhi and Keelung communities using monitoring systems.Collaborate to ensure stable community network operation and address abnormalities promptly.Customer Service and Troubleshooting Specialist:Promptly respond to customer network issue reports and coordinate repair schedules.Visit customers for line repairs and conduct post-repair tests for issue resolution.Customer Communication and Issue Confirmation:Confirm issue resolution with customers and track issues further if needed for satisfaction.System Planning and Design Expert:Participate in monitoring system planning, including area and camera positioning.Collaborate on wiring work planning, hardware installation, and network configuration.Customer Needs Analysis and Customized Solution Provision:Understand customer needs and provide tailored network solutions.Provide educational advice, explaining solution options, and assisting in decision-making.Practical Demonstration and Solution Selection:Provide demonstrations for customers and select suitable solutions based on their needs. Show less