Database Engineer – Senior Level (PostgreSQL/MongoDB/Oracle)

PeratonHerndon, VA
$135,000 - $216,000Onsite

About The Position

We are seeking a hands-on Senior Database Engineer to support the design, implementation, optimization, and sustainment of mission-critical database systems. This role emphasizes expertise in PostgreSQL and demonstrated experience with MongoDB and/or Oracle database systems. The ideal candidate will possess strong database engineering skills, including database design, performance tuning, PL/SQL and PL/pgSQL development, and operational support, with additional experience in database migrations and modernization efforts. The candidate must excel in high-pressure, secure environments, supporting database performance, reliability, scalability, and security. Note: This is a database engineering-focused role and not an ETL or data engineering role.

Requirements

  • Bachelor’s degree in an area relevant to the position with 12 or more years of relevant experience; Master’s degree in an area relevant to the position with 10 or more years of relevant experience; or Ph.D with 8 or more years of relevant experience will also be considered. An additional 4 years of experience may be considered in lieu of a degree.
  • Active TS/SCI or SCI eligibility and active polygraph or ability to obtain a polygraph.
  • Security+ or another IAT II/III level certification.
  • Strong expertise in PostgreSQL, including SQL and PL/pgSQL, as well as database design (tables, indices, schemas, triggers, stored procedures).
  • Hands-on experience with either MongoDB or Oracle Database.
  • Advanced troubleshooting skills, database performance analysis and optimization.
  • Database migration experience (Oracle-to-PostgreSQL migrations are strongly desired).
  • Ability to work full-time in a SCIF environment, with flexibility for travel as needed.
  • Ability to work in a fast-paced Agile environment collaboratively with diverse technical teams.
  • Strong technical communication and problem-solving abilities.

Nice To Haves

  • Familiarity with cross-domain systems and/or implementing Row-Level Security.
  • CI/CD practices with exposure to tools like Jenkins, Git, and Artifactory.
  • Monitoring experience with tools such as AppDynamics or similar.
  • Expertise with database upgrades and modernization efforts, particularly migrating legacy Oracle systems to PostgreSQL.
  • AWS experience—such as configuring and optimizing Amazon RDS databases or other AWS cloud services.
  • Experience with STIG hardening of databases or compliance auditing for secure environments.
  • Automated testing tools like Selenium or Robot Framework.

Responsibilities

  • Designing, developing, analyzing, and optimizing database systems (PostgreSQL, MongoDB, Oracle).
  • Performing database modeling, relational database architecture, metadata, repository creation, and schema management.
  • Designing and implementing complex database structures such as tables, indices, triggers, stored procedures, and schemas.
  • Performing advanced performance tuning, query optimization, and high-reliability configurations.
  • Conducting database monitoring and troubleshooting to identify and resolve performance bottlenecks.
  • Developing and supporting PostgreSQL databases using SQL, PL/pgSQL, or procedural database languages like PL/SQL.
  • Supporting database replication, backup, recovery, continuity solutions, and disaster recovery.
  • Implementing and managing database upgrades, migrations, and modernization efforts.
  • Developing and documenting system requirements, source analysis, and process analysis throughout the database lifecycle.
  • Implementing Row-Level Security, database encryption, and STIG hardening to enhance compliance.
  • Preparing for and supporting security and compliance audits in line with organizational and government requirements.
  • Collaborating with cross-functional teams in a fast-paced Agile environment, working closely with developers, testers, system engineers, and mission stakeholders.
  • Participating in Oracle-to-PostgreSQL migration activities or integrating MongoDB into cross-domain systems.
  • Supporting CI/CD pipelines using Jenkins, Git, and Artifactory.
  • Evaluating and recommending technology components, including software, hardware, networking, and database management capabilities.
  • Implementing automated database testing using tools like Selenium or Robot Framework.
  • Utilizing tools like AppDynamics or other monitoring platforms for real-time database performance oversight.
  • Working with AWS services (e.g., Amazon RDS) to manage, monitor, and optimize cloud-hosted database environments.

Benefits

  • Overtime
  • Shift differential
  • Discretionary bonus
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