Software Integration and Test Engineer / Principal Software Integration and Test Engineer (AHT)

This posting covers two levels simultaneously: Systems Engineer (2+ years relevant experience or 0 with a Master's) and Principal Systems Engineer (5+ years relevant experience or 3 with a Master's or 0 with a PhD). The salary range spans both levels ($75,800–$113,800 for the primary level; $94,200–$141,200 for the secondary). Seniority is assessed at the lower (Systems Engineer) level as the minimum entry point; the overall years minimum reflects the 2-year floor.

A Bachelor's degree in STEM is listed as the baseline, but the posting explicitly states 'additional years of experience in lieu of degree may be considered' for both levels, so no formal degree is hard-gated.

The role is primarily systems integration and test (I&T) for a defense command-and-control system. It sits between 15-1211 (Systems Analysts) and 15-1253 (QA/Test Analysts); 15-1211 was chosen because the duties extend well beyond test execution into system integration, interface analysis, and technical documentation for government customers.

Red Hat Enterprise Linux (RHEL) is listed explicitly under the 'good to have, but not required' section.

The posting states all work must be performed on-site in Redondo Beach, CA — remote work is not available.

A DoD Secret clearance is required to start ('CLEARANCE REQUIRED FOR START: Yes'); candidates who can obtain one are also eligible, but the clearance is a hard gate.

Ignored 2 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): software integration and testing, test scenario development.

Requires a Secret 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.