SQL Full Stack Developer

Description The Homeland Sector within Leidos is seeking a PostgreSQL Database Administrator with strong systems, software, cloud, and Agile experience to support the Passenger Systems Program Directorate (PSPD) within Customs and Border Protection (CBP). PSPD supports the Department of Homeland Security (DHS) and CBP critical missions, specifically screening and processing travelers at the ports of entry (POEs) into the United States. In this hands‑on position, you will work collaboratively to design, build, deliver, enhance, and support highly available, scalable, real‑time data persistence. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines, and other resource constraints. You will participate in major deliverables of data solutions during the software development life cycle including scope and work estimation, design, implementation, and support. Primary Responsibilities Works on-site in Ashburn, VA 2 times a week. Performs technical planning, system integration, verification and validation, cost and risk analysis, and supportability and effectiveness analyses. Proactively monitors database health, optimizes SQL code, and addresses performance bottlenecks. Designs and implements database schemas and structures according to project requirements. Develops and maintains documentation for database environments, including data standards and procedures. Implements security measures, sets user permissions, and ensures compliance with data protection policies. Plans for storage requirements and database growth, and scales infrastructure as needed. Maintains data accuracy and ensures maximum uptime, and may require on‑call support. Collaborates with developers to optimize queries, stored procedures, and database design for applications. Must be a self‑starter, strong leader, and able to work independently with little supervision. Minimum Qualifications BS/BA degree and 12+ years of prior relevant DBA experience or Master’s with 10+ years of prior relevant DBA experience; or 4 years of experience in lieu of degree. 4+ years’ experience tuning Aurora PostgreSQL database performance and PL/pgSQL scripts to optimize performance. 4+ years’ experience as an AWS Aurora PostgreSQL DBA in a 24x7 environment managing multiple databases of over 70 TB. At least 4+ years’ experience as an Oracle DBA in a 24x7 environment supporting databases of over 200 TB. Proficiency in tuning Oracle Databases and troubleshooting performance issues. Ability to support on‑call schedule and incident resolution. Proficiency with Microsoft Office Products (Word, Excel, Visio, PowerPoint). Excellent written and verbal communication skills. U.S. Citizen. Must be able to maintain and obtain a CBP Background Investigation prior to start. Preferred Qualifications Migration of Oracle to Aurora PostgreSQL with over 70 TB migrating from Oracle to Aurora. Experience using Generative AI to tune SQL statements. Experience with CBP. Java experience. Experience with other AWS data‑related services. Experience with any of the following: Struts, Hibernate, Java, JSF, Swing, JavaScript, Bootstrap, Angular. Experience with CI/CD, SecDevOps, Git source code repository (GitLab, GitHub). Pay Range $107,900.00 - $195,050.00 Commitment to Non-Discrimination 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. #J-18808-Ljbffr