Database Engineer – Senior Level (PostgreSQL/MongoDB/Oracle)
Peraton · Herndon, VA
$135,000–$216,000from the description
Jul 22, 2026
Herndon, VA
Jul 24, 2026
What this job asks for AI summary
A senior-level database engineering position focused on designing, tuning, and sustaining mission-critical database systems — primarily PostgreSQL, with supporting work in MongoDB and Oracle — within classified government environments. Day-to-day work spans schema design, query optimization, replication, backup and recovery, security hardening, and participation in Oracle-to-PostgreSQL migrations. Suits an experienced database engineer comfortable operating in secure facilities and collaborating within Agile teams.
Senior level · 12+ years · TS/SCI clearance · Full-time
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Rare in this occupation — lead with these, and say what you built with them.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $106,921 (middle half $81,361–$138,439). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (9)
The role sits at the boundary between 15-1242 (Database Administrators) and 15-1243 (Database Architects): the JD explicitly calls out schema design, relational architecture, and modeling alongside operational DBA duties (backup/recovery, replication, tuning). 15-1242 was chosen as primary because the operational and sustainment responsibilities dominate; 15-1243 is the close runner-up.
MongoDB and Oracle are listed as a paired alternative in the required qualifications ('hands-on experience with either MongoDB or Oracle Database'), so they are captured as a single requirement with alternatives rather than two separate gates.
The clearance requirement is TS/SCI with an active polygraph or the ability to obtain one — this is a hard gate.
Security+ (or another IAT II/III certification) is listed as a required certification; Security+ is named as the canonical example.
The minimum experience figure of 12 years applies to candidates with a Bachelor's degree; 10 years applies with a Master's and 8 years with a Ph.D. The 12-year figure is used as the overall years minimum (the most common path). The JD also allows 4 additional years of experience in lieu of any degree, so the degree requirement is set to None.
No work location is specified in the posting beyond requiring full-time presence in a SCIF environment; the metro/CBSA fields are left blank.
All items under 'Desired Qualifications' are marked preferred, including CI/CD tools (Jenkins, Git, Artifactory), AppDynamics, AWS/Amazon RDS, STIG hardening, and automated testing tools (Selenium/Robot Framework).
PL/SQL appears in the responsibilities narrative as a procedural language alongside PL/pgSQL but is not explicitly called out as a hard gate in the required qualifications section, so it is marked preferred.
Requires a TS/SCI clearance — the cleared population is a small fraction of this occupation, so the real candidate pool is materially smaller than the estimate below, which does not model clearance.
Read the full posting
The employer publishes the full description on their own site — read it there ↗. Or sign in to read it here — it's free, and it also lets you track this application.