Weapons Integration Engineer (Multiple Levels)

Castelion Corporation•Torrance, CA

2d•Onsite

About The Position

Castelion is seeking a Weapons Integration Engineer to ensure weapon systems integrate seamlessly with ground launchers, tactical/multi-role aircraft, and future systems. This role involves owning platform integration efforts from concept and capability studies through prototype development, testing, and operational deployment. The engineer will collaborate with various internal teams to deliver mission-ready solutions. Multiple levels of this position are available, including Sr. Weapons Integration Engineer, Weapons Integration Engineer (Mission Systems), Weapons Integration Engineer (Airworthiness & Certification), Weapons Integration Engineer (Launcher & Platforms), and Weapons Integration Engineer (Special Programs).

Requirements

Bachelors degree in aerospace, mechanical, electrical engineering, physics, or related technical field.
2+ years experience in systems engineering, mission/weapon integration, or related roles within defense or aerospace.
2+ years experience in technical project management or weapons system development.
Hands-on experience with launch vehicles, weapons systems, system integration, or aerospace defense platforms
Experience working with the DoD or other national security agencies.
Strong analytical skills: ability to synthesize complex technical information and communicate effectively to engineers and non-technical stakeholders
Ability to obtain and maintain Top Secret/SCI clearance
Ability to travel up to 25% for customer meetings, test campaigns, and program execution
Ability to put in extended hours, including evenings and weekends, when required to meet aggressive timelines
Full-time onsite presence required in Torrance, CA.

Nice To Haves

Masters degree in a relevant technical field.
Hands-on experience with hypersonic weapons, missile defense, or platform integration
Strong background in mission design, development, integration, and test for missiles, spacecraft, or similar systems
Demonstrated success integrating weapons or sensors with tactical aircraft and/or ground-based launch systems
Active Top Secret/SCI clearance preferred

Responsibilities

Serve as the primary technical liaison between Castelion and government customers, platform manufacturers, and other external stakeholders to ensure alignment between mission requirements and system designs.
Support development of advanced weapon concepts and technologies, with emphasis on missile integration for ground launchers and tactical aircraft.
Develop, maintain, and execute fast-paced integration plans and schedules to deliver and field weapon systems.
Lead mission planning, verification, and test efforts (including live-fire and flight tests): pre-test analysis, real-time mission support, and post-test evaluation and reporting.
Review and assess interface specifications, drawings, and design documents for functional, electrical, software, and physical interfaces; identify and close interface gaps.
Collaborate across internal engineering teams (propulsion, avionics, GNC, software, flight test, manufacturing) to perform design trades and optimize overall system performance with a focus on platform compatibility.
Develop and coordinate technical specifications, integration documentation, and certification/supporting artifacts required for customer acceptance and regulatory compliance.
Represent Castelion at customer meetings, design reviews, test campaigns, and demonstrations.
Ensure contract deliverables meet customer requirements, schedule, and quality standards.

Benefits

Meaningful long-term equity
Four (4) weeks of paid time off
Ten (10) company-paid holidays
Comprehensive health benefits - including 100% employee-covered medical and strong dependent coverage
Dental and vision plans
Paid parental leave
$100 monthly fitness stipend
Onsite EV charging
Catered meals
Company-covered food during high-demand periods
Fully stocked kitchen