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概要
I bring over eight years of dedicated experience in database administration and development, with a focus on SQL Server and Oracle databases. As a Principal Database Engineer, I have built a reputation for delivering high-performing, reliable database solutions tailored to business needs. My journey has been defined by a passion for optimizing database performance, ensuring system stability, and enabling seamless data management across diverse environments.
My expertise includes managing database synchronization across production, staging, and testing environments, and I have consistently delivered solutions that improve efficiency and reduce operational risks. I am skilled in writing and optimizing complex T-SQL code, developing stored procedures, and crafting innovative indexing strategies to enhance query performance. By leveraging tools like Red Gate, I ensure seamless database synchronization and maintain data integrity. At the core of my professional approach is a commitment to excellence, collaboration, and continuous improvement. Beyond database administration, I specialize in developing insightful reports and dashboards using SSRS and other BI tools.
My experience in disaster recovery planning, database redesign, and automation has enabled me to mitigate risks and ensure business continuity. I am also well-versed in Linux system troubleshooting, adding another layer of technical versatility to my skill set. I take pride in my ability to troubleshoot critical system issues, implement high availability solutions, and drive database automation projects. My goal is to deliver innovative solutions that not only solve immediate challenges but also position organizations for long-term success.
项目
工作经历
Principle Database Engineer
Install, configure, and upgrade Microsoft SQL Server and optimize SQL queries to reduce query execution times and enhance application performance by analyzing and refining existing code. Deliver actionable insights by designing and generating reports in SQL Server Reporting Services (SSRS). Create scalable database designs by leveraging expertise in Transact-SQL (DDL, DML, DCL, TCL) and applying normalization principles for efficient table structures. Identify and troubleshoot database-related issues to ensure uninterrupted operations. Offer efficient solutions to meet end-user database requirements by analyzing needs and tailoring database systems. Utilized Azure services like repos, boards, and test plans to enhance collaboration among cross-functional teams and optimize development workflows.
Key Accomplishments
Developed and maintained complex T-SQL scripts and stored procedures, functions, indexes, and dynamic queries to support business-critical applications.
Created and managed Azure DevOps release pipelines and YAML pipelines by utilizing the YAML scripting language to streamline deployment processes.
Architected and implemented complex, multi-stage Azure DevOps pipelines with parallel testing and environment management to reduce release cycle times for enterprise-scale applications.
Designed and implemented efficient database structures, including normalized schemas, table partitions, and Indexes to ensure scalability and data integrity.
Played an integral role in implementing robust backup, restore, and synchronization processes across production, staging, and testing environments using Red Gate tools.
Improved system reliability by analyzing, optimizing, and tuning existing procedures and functions, monitoring server processes, and implementing efficient backup and restore strategies.
Raised SQL Server performance through the creation and management of clustered and non-clustered indexes, as well as regular index and table rebuilding exercises.
Succeeded in automating recurring tasks by managing SQL Server Agent Jobs.
Database Administrator
Designed scalable databases by normalizing schemas, creating clustered/non-clustered indexes, and managing schema objects like tables, views, and indexes. Created complex business logic in stored procedures to facilitate application modules, such as CRM and HRM. Held full accountability for examining SQL queries, stored procedures, and triggers to reduce query execution times and improve application response rates. Facilitated data extraction and analysis through advanced SQL scripting, dynamic querying, and the extensive use of joins and subqueries. Implemented ASM technology in Oracle databases and managed 11g/12c environments. Installed Linux OS (RHEL, CentOS, Ubuntu) as well as handled software package downloads and installations. Managed database storage, user security, and schema objects (tables, indexes, views) to ensure optimal performance. Designed and normalized database tables, with strong skills in Transact-SQL (DDL, DML, DCL, TCL). Developed and enforced database security policies to safeguard sensitive data according to compliance requirements.
Key Accomplishments
Streamlined environment synchronization across production, staging, testing, and development systems using Red Gate tools to ensure seamless deployments and minimized downtime.
Strengthened database security by implementing user roles and authentication policies according to industry standards.
Raised system reliability through health monitoring, index rebuilding, table partitioning, and performance tuning exercises.
Reduced manual effort by automating repetitive tasks and using SQL Server Agent Jobs and custom scripts.
Improved Linux server efficiency through the installation, configuration, and management of RHEL, CentOS, and Ubuntu, including user and group administration, SSH access, and system file backups.
Enhanced system performance through expert performance tuning and optimization (PTO) by leveraging native monitoring tools while ensuring robust backups, restores, and recovery model implementation.
Designed and managed high-availability solutions, including Always On Availability Groups and Windows Server Failover Clustering, to ensure database uptime and reliability.
Administered Windows Server environments, including Active Directory integration to support database operations.
Documented database configurations by troubleshooting procedures, and operational workflows to ensure streamlined maintenance and knowledge sharing.
Promptly responded to system alerts for diagnosing and resolving issues to minimize downtime in a dynamic and rapidly changing environment.
Database Administrator
Enhanced SQL Server performance through query optimization, index creation, and regular index/table rebuilding as part of performance tuning.
Created and maintained numerous stored procedures to implement complex business logic across ERP modules, such as human resource management, customer relationship management, and operations.
Reviewed, optimized, and tuned existing procedures and functions, ensured better performance; monitored server processes, backed up and restored database.
Simplified reporting and analysis by maintaining advanced SQL scripts, dynamic queries, and data extraction processes.
Upgraded performance by reviewing, optimizing, and tuning procedures/functions, monitoring server processes, and managing database backup and restoration.
Improved Oracle database administration in 11g environments as well as managed storage, security, backups, and ASM technology for efficient performance.
Set a benchmark of excellence by designing efficient backup/recovery strategies, synchronizing environments with Red Gate, and monitoring server health.
Streamlined complex queries using joins and sub-queries across multiple tables while optimizing procedures and triggers for enhanced performance in production environments.
Planned and executed disaster recovery strategies as well as conducted regular tests to validate business continuity.
Liaised with developers to optimize query performance and refine database schemas while improving system efficiency.
Recommended and implemented system architectures aligned with Microsoft SQL Server best practices to ensure optimal performance and scalability.
Automated routine administrative tasks by developing PowerShell and SQL scripts that reduced manual intervention.
Configured and maintained robust monitoring and alerting solutions to identify and address potential issues proactively.
