DEREJE TAFESSE
******.*******@*******.*** 325-***-**** Dallas TX
Professional Summary
An experienced SQL Server Database administrator with 7 years of expertise in database management, performance tuning, database migration, high availability, and disaster recovery. Excel at optimizing database operations, ensuring data integrity, and managing large-scale projects. Demonstrated success in implementing innovative solutions and improving database efficiency and reliability. Proficient in security protocols, troubleshooting complex issues, and enhancing system performance. Skilled in collaboration with cross-functional teams, contributing to organizational objectives. Committed to operational excellence and continuous professional development. Adept at navigating challenging environments and driving technological advancements. Skills
• Windows Server 2022/2019/2016/2012
• SQL Server 2022/2019/2017/2016/2014/2012/2008R2
• Installation & Troubleshooting
• SQL Server Management Studio
• Database Management
• Performance Tuning
• Database Migration
• Backup and Recovery
• High Availability & Disaster Recovery (HADR)
• Query Optimization
• SSIS
• SSRS
• SSAS
• Extended Events
• Database Mail
• Index Maintenance
• AlwaysOn Availability Groups
• Microsoft Power BI
• T-SQL
• Indexing
• Store Procedures
• Azure
• PowerShell
• Automation
• Auditing
• Monitoring
• Data Cleansing
• Query Execution Plans
• SQL Profile
• Patch Management
• Clustering
• Log Shipping
• Mirroring
• Replication
• Database Security
• Transparent Data Encryption
• Teamwork and collaboration
• Customer Service & Retention
• Leadership
• Problem-Solving
• Cloud Platforms
• Golden-Gate
• Redgate
• Cloud migration
• Optimization
• System performance
• Azure cloud
• Data modeling
• Data warehousing
• ETL
• Query Tuning
• Microsoft PowerShell
• Database migration
• SOP
Experience
Happy State Bank
Senior SQL Server Database
Administrator
01/2022 - Current
• I installed, configured, and maintained MS SQL Server versions 2008 R2
/2012, 2014, 2016, 2017, 2019, and 2022 across production, development, and testing environments.
• I performed troubleshooting for database issues, pinpointing and resolving root causes to optimize performance.
• In collaboration with infrastructure and development teams, I ensured database reliability and provided technical support to developers and end- users.
• I crafted and executed comprehensive backup and recovery strategies, adhering to maintenance schedules for data protection.
• I aligned database backups with business Recovery Point Objectives (RPO) and regularly tested backups to meet Recovery Time Objectives (RTO).
• I managed server logins, database users, and customized roles, assigning users to roles to control data access.
• I proactively monitored security logs and user activities within SQL Server and third-party systems to prevent security threats.
• I implemented and sustained High Availability Disaster Recovery (HADR) strategies, including log shipping, database mirroring, Always On availability groups, and clustering, to ensure data availability and disaster recovery.
• I configured and oversaw SQL Server Replication for data distribution across locations, ensuring data integrity and access.
• I employed Redgate tools and SQL Server utilities for database performance monitoring, guaranteeing efficient operation and quick resolution of issues.
• I managed patch protocols to keep systems updated and secure with minimal downtime.
• I conducted data cleansing to enhance database quality and performance, ensuring data precision and dependability.
• I analyzed query execution plans to refine T-SQL queries, boosting system efficiency and reducing response times. Additionally, I developed and maintained SSIS packages for data integration and transformation. Marathon Oil
SQL Server Database Administrator
01/2019 - 12/2021
• I have installed, configured, and troubleshot SQL Server instances across various environments to ensure peak performance and reliability.
• I have utilized SQL Server Management Studio (SSMS) for database administration, system health monitoring, and performance tuning to boost database efficiency.
• My responsibilities included managing and maintaining database systems with tasks such as schema design, index tuning, and validating data integrity to support business operations.
• I have implemented advanced performance tuning techniques to pinpoint bottlenecks and enhance database operations, which significantly cut down response times and raised user satisfaction.
• . I have taken part in database migration projects, guaranteeing smooth transitions between SQL Server versions with minimal downtime and no data loss.
• I have established robust backup and recovery strategies to protect against data loss and enable swift recovery in case of failures.
• I have developed and sustained High Availability (HADR) solutions, including Always On Availability Groups, ensuring uninterrupted data access and meeting stringent SLAs for disaster recovery.
• I provide thorough support, administration, and maintenance for development, test, and production environments, ensuring consistent performance and reliability across SQL Server platforms.
• I design, create, and meticulously maintain SQL Server Integration Services
(SSIS) packages, enabling efficient data integration and transformation processes that bolster business intelligence and data warehousing solutions.
• I have effectively pinpointed and rectified server and database performance issues using Redgate SQL Monitor, markedly improving system stability and efficiency.
Abilene Regional Medical Center
Junior SQL Server Database
Administrator
06/2017 - 12/2018
• I managed environments for SQL Server 2016/2014/2012/2008R2 ensuring peak performance and reliability across both production and non- production servers.
• My role involved monitoring database performance to identify and resolve any system bottlenecks, guaranteeing optimal operation and user access.
• I assisted in the design and implementation of databases, including structuring, storage allocation, and managing data import/export processes.
• Regular maintenance tasks such as backups, restorations, and integrity checks were performed to ensure data accuracy and security.
• I implemented and maintained security measures for the database, including access controls and encryption, to safeguard sensitive information.
• In collaboration with senior DBAs, I worked on developing and optimizing SQL queries to enhance performance and efficiency.
• I was actively involved in disaster recovery planning and execution to minimize data loss during system failures.
• Additionally, I monitored and adjusted the DBMS settings to align with organizational standards and policies, provided technical support to end- users for database access and performance issues, and participated in database migration projects, specifically upgrading from SQL Server 2012 to 2014, ensuring a smooth transition with minimal downtime. Education
YOM Postgraduate College
Master of Business Administration
09/2021
Debre Berhan University
Bachelors in computer science
07/2012
Websites, Portfolios, Profiles
• www.linkedin.com/in/dereje-tafesse