Database Engineer – Senior Level; PostgreSQL​/MongoDB​/Oracle

Responsibilities

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.

Responsibilities

As a
Senior 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 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.
• 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 App Dynamics 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.

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 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.
• Soft Skills
  :
  • Ability to work in a fast-paced
    Agile
    environment collaboratively with diverse technical teams.
  • Strong…