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

Peraton; Herndon (VA); On-site; USD 135,000 - 216,000; Full time

Job summary

Peraton is seeking a hands-on Senior Database Engineer to design, implement, and sustain mission-critical database systems including PostgreSQL, MongoDB, and Oracle. The role emphasizes performance tuning, PL/pgSQL/PL/SQL development, and security in high‑assurance environments.

The ideal candidate will lead database design, migrations, and modernization efforts while supporting CI/CD and cloud deployments with AWS services.

Qualifications

• Bachelor’s degree or higher with 12+ years of relevant experience, or Master’s/PhD with substantial relevant experience.
• Active TS/SCI clearance or ability to obtain one.
• Security+ or equivalent IAT II/III certification.

Responsibilities

• Designing, developing, and optimizing PostgreSQL, MongoDB, and Oracle databases.
• Performing database tuning, performance analysis, and reliability improvements.
• Supporting database migrations and modernization initiatives.
• Ensuring security hardening, audits, and compliance in secure environments.
• Collaborating with cross‑functional teams in an Agile setting and supporting CI/CD pipelines.
• Monitoring and automating database testing and performance oversight.

Skills

PostgreSQL

MongoDB

Oracle

PL/pgSQL

PL/SQL

SQL

Security

AWS

Education

Bachelor’s degree

12+ years of relevant experience

Active TS/SCI Clearance or eligibility

Tools

Jenkins

Git

Artifactory

Job description

Responsibilities

We are seeking a hands-onSenior Database Engineerto support the design, implementation, optimization, and sustainment of mission-critical database systems. This role emphasizes expertise inPostgreSQLand demonstrated experience withMongoDBand/orOracledatabase 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.

Responsibilities

As aSenior Database Engineer, your responsibilities will include but are not limited to:

• Database Design & Development:
  • 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.
• Database Tuning & Maintenance:
  • Performing advanced performance tuning, query optimization, and high-reliability configurations.
  • Conducting database monitoring and troubleshooting to identify and resolve performance bottlenecks.
• Operational Support:
  • Developing and supporting PostgreSQL databases usingSQL,PL/pgSQL, or procedural database languages likePL/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.
• Security:
  • 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.
• Technological Integration & Collaboration:
  • 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.
• Monitoring & Automation:
  • 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.
• AWS Cloud Expertise:
  • Working with AWS services (e.g., Amazon RDS) to manage, monitor, and optimize cloud-hosted database environments.

Qualifications

Required Qualifications

To qualify for this position, candidates must have the following:

• Education & Clearance:
  • 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.
  • ActiveTS/SCI or SCI eligibility and active polygraph or ability to obtain a polygraph.
• Certifications:
  • Security+or another IAT II/III level certification.
• Technical Expertise:
  • Strong expertise inPostgreSQL, including SQL and PL/pgSQL, as well as database design (tables, indices, schemas, triggers, stored procedures).
  • Hands-on experience with eitherMongoDBorOracle 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.
• Soft Skills:
  • Ability to work in a fast-pacedAgileenvironment collaboratively with diverse technical teams.
  • Strong technical communication and problem-solving abilities.

Desired Qualifications

The best candidates will bring experience in some of the following:

• Familiarity with cross-domain systems and/or implementingRow-Level Security.
• CI/CD practices with exposure to tools likeJenkins,Git, andArtifactory.
• Monitoring experience with tools such asAppDynamicsor similar.
• Expertise withdatabase upgrades and modernization efforts, particularly migrating legacy Oracle systems to PostgreSQL.
• AWS experience—such as configuring and optimizingAmazon RDS databasesor other AWS cloud services.
• Experience withSTIG hardeningof databases or compliance auditing for secure environments.
• Automated testing tools likeSeleniumorRobot Framework.

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$135,000 - $216,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.