Updated for 2026

Senior Database Administrator
Resume Example

A proven resume structure for experienced database administration roles that highlights query optimization, high-availability architecture, and large-scale data management expertise.

ATS Score
89
Excellent
Keywords · Impact · Format
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Thomas Brennan

Atlanta, GA  |  [email protected]  |  (555) 404-6192  |  linkedin.com/in/thomasbrennan
Summary

Senior database administrator with 8 years of experience managing production databases supporting 25TB+ of data across PostgreSQL, SQL Server, and Oracle environments. Achieved 99.99% uptime across 45 database instances while reducing query execution times by an average of 68% through index optimization and query rewriting. Expert in replication, disaster recovery, and database migration at enterprise scale.

Technical Skills
Databases: PostgreSQL, SQL Server, Oracle 19c, MySQL, MongoDB, Redis
Administration: Replication (Always On AG, streaming), backup/recovery (RMAN, pg_dump), performance tuning, partitioning, index optimization
Tools & Infrastructure: AWS RDS, Azure SQL, Terraform, Ansible, Datadog, pgBadger, SQL Server Profiler, Liquibase
Experience
Senior Database Administrator - CoreVault Data Systems
  • Managed 45 production database instances totaling 25TB across PostgreSQL, SQL Server, and Oracle, maintaining 99.99% uptime over 36 consecutive months
  • Optimized 320+ slow queries identified through pgBadger and SQL Server Profiler, reducing average execution time by 68% and eliminating 12 daily timeout incidents
  • Designed and implemented PostgreSQL streaming replication with automatic failover across 3 availability zones, reducing recovery time from 45 minutes to under 90 seconds
  • Led migration of 8 on-premise SQL Server databases (4.2TB) to AWS RDS, completing with zero data loss and reducing annual infrastructure costs by $185K
Database Administrator - Meridian Financial Services
  • Administered 22 Oracle and SQL Server databases supporting 3,200 concurrent users in a financial services environment with SOX compliance requirements
  • Implemented table partitioning strategy for 8 transaction tables averaging 2.8B rows, reducing reporting query times from 12 minutes to 45 seconds
  • Designed automated backup and recovery procedures using RMAN and maintenance plans, achieving 100% backup success rate across 15,000+ scheduled jobs per year
  • Created performance monitoring dashboards in Datadog tracking 85 metrics per instance, reducing mean time to detect database issues from 22 minutes to 3 minutes
Education
B.S. in Information Technology - Georgia Institute of Technology
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Why This Resume Works

1
Scale and Uptime Front and Center

Leading with 25TB of data, 45 instances, and 99.99% uptime immediately establishes the candidate operates at enterprise scale with production-critical reliability.

2
Query Optimization Quantified

Reducing 320+ slow queries by 68% with specific tools like pgBadger demonstrates hands-on performance tuning expertise that hiring managers can directly evaluate.

3
Migration and Cost Savings Combined

The on-premise to AWS RDS migration with zero data loss and $185K savings shows both technical execution and business awareness that senior DBA roles require.

Section-by-Section Breakdown

Summary

Lead with total data volume managed, number of instances, and uptime percentage. These three numbers immediately communicate your scope and reliability track record.

Skills

List all database platforms you have administered (PostgreSQL, SQL Server, Oracle, MySQL). Include administration-specific skills like replication, backup/recovery, and partitioning separately from tools.

Experience

DBA metrics that matter: uptime percentage, query improvement percentages, data volumes, recovery time objectives, and cost savings from optimization or migration.

Education

Certifications like Oracle OCP, Microsoft MCSA, or AWS Database Specialty carry significant weight. List them prominently alongside your degree.

Key Skills for Senior Database Administrator Resumes

Based on analysis of thousands of job postings, these are the most frequently required skills:

PostgreSQL SQL Server Oracle Database Query Optimization Replication & High Availability Backup & Disaster Recovery Performance Tuning Database Migration Table Partitioning Index Management AWS RDS & Azure SQL Monitoring & Alerting Capacity Planning Compliance (SOX, HIPAA) Automation (Ansible, Terraform) Schema Design

Common Mistakes on Senior Database Administrator Resumes

  • No Uptime Metrics - Database administrators are judged by availability. Not stating your uptime track record (99.9%, 99.99%) leaves recruiters without the most important DBA performance indicator.
  • Ignoring Data Volumes - Managing a 50GB database is fundamentally different from managing 25TB. Not specifying data volumes makes it impossible to assess the scale of your experience.
  • Missing Query Optimization Results - DBAs are expected to tune performance. Not including before-and-after query times or the number of queries optimized misses the core value proposition of the role.
  • No Disaster Recovery Experience - Backup and recovery are foundational DBA responsibilities. Omitting RTO, RPO, or backup success rates suggests incomplete operational experience.
  • Listing Only One Database Platform - Most senior DBA roles require multi-platform experience. Showing only PostgreSQL or only SQL Server limits your candidacy for roles requiring cross-platform administration.

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