Software Security Engineer
Castelion — Tracked from its manatal job board
About the role
About Castelion Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at…
What the index says about this role
- First seen by JobLarper — Aug 13, 2026, 65 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
- No pay range in our index for this listing. Across 101 indexed Security Engineer roles in US that do publish one, the middle half sits between $185k and $306k, median $240k — JobLarper's read of the market, not a figure from Castelion.
- What Security Engineer roles ask for — across 653 indexed openings: Python (46%), Cloud (46%), REST/APIs (39%), Go (34%), AI/LLM (30%). This posting names React Native, Backend.
- Castelion is hiring actively — 57 open roles indexed.
Derived from the 28,470 roles JobLarper indexes daily from official company boards — not from the job description above.
⚡ JobLarper watched this role appear on Castelion's official board on Aug 13, 2026. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.
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All 57 open roles at Castelion →
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