Systems Engineer IV at JT4, LLC

This role is a broad systems/mission engineering position supporting a federal test range, not a pure software or IT occupation. It spans hardware, software, and mechanical systems sustainment, making a precise SOC mapping difficult. 15-1299 (Computer Occupations, All Other) is used as the closest fit given the emphasis on software and computer-based systems; 15-1211 (Computer Systems Analysts) is a plausible alternative given the systems integration and requirements analysis work.

The clearance language is conditional ('some jobs may require') rather than an explicit hard gate for this specific posting; however, the role explicitly supports a federal government contract requiring U.S. citizenship and the work context (Space Force test range) makes a clearance highly likely in practice. Flagged as Secret as a reasonable minimum given the mission context — hiring managers should verify the actual clearance level required.

The desired qualifications (LCSP, RMA/MTBF, obsolescence analysis, tech refresh) are listed under a 'Desired Qualifications' heading and are treated as preferred rather than required.

The only concrete technical skill explicitly required is working knowledge of computer systems and computer-based engineering tools — the posting is otherwise light on named technologies. The skills list reflects what the JD actually states.

The title 'Engineer IV' carries no standard seniority level word, so advertised seniority is set to Unspecified. The 8-year minimum experience requirement and supervisory/advisory scope support a Senior classification.

Ignored 5 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): Life Cycle Sustainment Plans, RMA/MTBF analysis, obsolescence analysis, tech refresh planning, computer-based engineering tools.

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.