Senior Database Administrator (DBA)

Leidos; Baltimore (MD); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking a Senior Database Administrator to lead the migration of a legacy Siebel Oracle database to AWS PostgreSQL (RDS/Aurora). You will partner with data stakeholders to profile data models, design ETL pipelines with AWS Glue, DMS, and PySpark, and ensure high accuracy and availability across migration stages.

The role requires 8–10 years of DBA experience, plus strong Oracle/PostgreSQL skills in AWS, data profiling, and security controls.

Qualifications

• Bachelor's degree and 8–10 years of DB administration experience.
• Experience administering Oracle and PostgreSQL in AWS production environments.
• Experience with large-scale data migrations and CDC concepts.
• Ability to obtain Public Trust eligibility.
• Familiarity with FedRAMP security controls is a plus.

Responsibilities

• Lead database architecture and administration for migration to AWS PostgreSQL.
• Profile, analyze, and document legacy Siebel data model for migration planning.
• Design ETL processes using AWS Glue, PySpark, and AWS DMS for data movement.

Skills

Oracle DBA

PostgreSQL

Data migrations

AWS data services

Public Trust eligibility

Education

Bachelor’s degree in a related field

Tools

AWS Glue

AWS DMS

S3

RDS/Aurora PostgreSQL

Redshift

Job description

The Digital Modernization Sector at Leidos currently has an opening for a Senior Database Administrator (DBA) to work in our Baltimore, Maryland office. This is an exciting opportunity to use your experience helping the Center for Medicare and Medicaid Services (CMS) migrate and modernize the database supporting its legacy Contact Center CRM Services (CCCS) platform.

Primary Responsibilities

• Lead database architecture and administration supporting migration from the legacy Oracle Siebel database to the modernized AWS PostgreSQL (RDS/Aurora PostgreSQL) environment.
• Partner with the Data Migration Lead and Data Modeler to profile, analyze, and document the legacy Siebel data model supporting migration planning.
• Support design and development of data extraction, transformation, and loading (ETL) processes leveraging AWS Glue, PySpark, and AWS DMS to move data from Siebel/Oracle to AWS PostgreSQL staging and production environments.
• Support the Data Migration Workbook by documenting data quality issues, mapping rules, and transformation logic for historical and Change Data Capture (CDC) migration.
• Administer and tune databases and support to meet the 99.9% data migration accuracy threshold and validate reconciliation results across all migrated records.
• Support database performance monitoring, tuning, and capacity planning to meet system availability (≥99.9%) and scalability requirements.
• Design and implement database backup, recovery, and Multi-AZ/Multi-Region resilience strategies to support disaster recovery and business continuity.
• Support integration between the Pega CRM database, the National Data Warehouse (NDW), and other CMS shared systems.
• Support the Amazon Redshift and Aurora environments, including any migration or integration activities impacting these systems.
• Implement database security controls, including encryption at rest and in transit, role‑based access control (RBAC), and continuous monitoring in alignment with FedRAMP Moderate and CMS security requirements.
• Support database configuration management and change control, ensuring all database changes are documented, tested, and CMS‑approved.
• Partner with the Chief Architect and program team to align database design decisions with the overall CCCS technical architecture and data ownership/portability objectives.
• Support database‑related Definition of Done criteria, ensuring database changes are unit tested, integrated, and validated prior to release.
• Troubleshoot and resolve database performance issues, defects, and data quality issues, supporting production operations.
• Support cutover planning, rehearsal, and final production migration validation, ensuring zero operational disruption during go‑live.
• Document database architecture, data models, and operational procedures to support requirements traceability and the Transition‑Out Plan.
• Mentor and provide technical guidance to Data Modelers and ETL Developers on database design, performance tuning, and migration best practices.
• Communicate technical status, risks, and dependencies related to database architecture and data migration to CMS leadership, and Leidos management.
• Support Sprint Review demonstrations and User Acceptance Testing (UAT) activities related to data migration and database functionality.
• Actively participate in planning sessions, requirements gathering activities, design sessions, Agile ceremonies, and other events supporting the CRM modernization effort.

Required Qualifications

• Bachelor’s degree and a minimum of 8-10 years of relevant database administration experience, or an equivalent combination of education and experience
• Experience administering and tuning Oracle and PostgreSQL (RDS/Aurora) databases in a highly available, production environment in AWS
• Experience with large‑scale, complex data migrations, including data profiling, mapping, transformation, and reconciliation
• Experience with AWS data services (e.g., AWS Glue, AWS DMS, S3, RDS/Aurora, Redshift) supporting data integration and migration pipelines
• Ability to obtain Public Trust

Preferred Qualifications

• AWS Certified Database ‑ Specialty or AWS Certified Solutions Architect certification
• Experience supporting Pega Platform database architecture
• Experience with Change Data Capture (CDC) and near‑real‑time data synchronization techniques
• Experience with FedRAMP‑authorized cloud environments and Zero Trust security principles
• Experience with Agile/Scrum or SAFe delivery methodologies
• Experience supporting CMS or other federal health/human services modernization programs; experience with contact center or CRM platforms a plus

Pay Range

Pay Range $107,900.00 - $195,050.00

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

More details are available here.

Securing Your Data

Leidos will never ask you to provide payment‑related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment‑related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.