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Senior Database Administrator
General Dynamics Information Technology. Administer, configure, and maintain databases across Db2 for z/OS, Db2 LUW, SQL Server, PostgreSQL, and AWS .
Tech Stack
Tools & technologiesAnsibleAWSCloudEC2LinuxPostgresPythonSQLTerraform
About the role
Key responsibilities & impact- Administer, configure, and maintain databases across Db2 for z/OS, Db2 LUW, SQL Server, PostgreSQL, and AWS
- Manage schema design, indexing strategies, data partitioning, compression, and workload management for high-throughput transactional and analytical systems
- Implement and verify backup/restore, HA/DR, log shipping, replication, and failover strategies (native tools and third-party solutions)
- Conduct deep performance tuning: query optimization, execution plans, parallelism, memory, I/O, buffer pools, and connection management
- Enforcement of security baselines: encryption (at rest/in transit), secrets management, key rotation (KMS/HSM) etc.
- Build infrastructure-as-code patterns for database provisioning and configuration (e.g., Terraform, CloudFormation, Ansible)
Requirements
What you’ll need- 8–12+ years of progressive DBA experience across Db2 (z/OS & LUW), SQL Server, and PostgreSQL, including production ownership in enterprise environments
- Hands-on mainframe experience: TSO/ISPF, JCL, Linux, Db2 utilities, and performance analysis using SMF/IFC data and Db2 traces
- Proven AWS experience running databases on RDS/Aurora and EC2, with strong knowledge of networking, storage, IAM, and monitoring (CloudWatch)
- Expert-level performance tuning and query optimization; adept with execution plans, indexing, partitioning, and statistics maintenance
- Strong command of backup/restore, replication, HA/DR, and business continuity across on-prem and cloud
- Practical automation skills with PowerShell, Python, Bash, and mainframe scripting (REXX, JCL)
- Solid grasp of security, compliance, and audit practices; experience with encryption, RBAC, auditing, and key management
- Excellent communication, stakeholder management, and incident leadership under pressure.
Benefits
Comp & perks- Comprehensive benefits and wellness packages
- 401K with company match
- Paid time off
- Full-flex work week to own your priorities at work and at home
- GDIT Paid Family Leave program providing a total of up to 160 hours of paid leave
- Short and long-term disability benefits
- Life, accidental death and dismemberment insurance
- Personal accident, critical illness and business travel and accident insurance
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Db2SQL ServerPostgreSQLAWSTerraformCloudFormationAnsiblePowerShellPythonBash
Soft Skills
communicationstakeholder managementincident leadership