$60 - $70
**Principal Systems Engineer – Aerospace Sustainment Programs (Contract-to-Hire)**

Our recruiting firm is partnering with a leading aerospace and defense organization seeking an experienced Principal Systems Engineer to support complex sustainment, modernization, and lifecycle engineering initiatives for mission-critical ground support equipment used in military operations.
This is a 6–12 month contract opportunity with strong potential for long-term conversion. The position offers the opportunity to work closely with engineering, manufacturing, maintenance, and government stakeholders to ensure technical integrity, configuration control, reliability, safety, and operational readiness of deployed systems.
The role is based in the greater St. Louis, Missouri area and offers a flexible onsite/hybrid work arrangement.

**Key Requirements**
• Bachelor's degree in Engineering or related technical discipline
• 8+ years of systems engineering experien...