Weapons Integration Engineer - Platform & Mission Systems Lead

Castelion Corporation; Torrance (CA); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Castelion Corporation in Torrance, CA is seeking a multi-level Weapons Integration Engineer to own platform integration from concept through deployment, coordinating with propulsion, avionics, GNC, software, and manufacturing teams. This role requires collaboration with government customers and external partners to ensure mission-ready weapon systems.

The focus areas include mission systems integration, airworthiness, launcher integration, and test & evaluation, with responsibilities spanning

Qualifications

• Bachelor's degree in aerospace, mechanical, electrical engineering, physics, or related technical field.
• 2+ years of experience in systems engineering, mission/weapon integration, or related roles within defense or aerospace.
• 2+ years of 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 and ability to communicate with 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.

Responsibilities

• Serve as primary technical liaison between Castelion and government customers and external stakeholders.
• Support development of advanced weapon concepts with emphasis on missile integration for ground launchers and tactical aircraft.
• Develop and execute fast-paced integration plans to deliver and field weapon systems.
• Lead mission planning, verification, and test efforts including live-fire and flight tests.
• Review interface specifications, drawings, and design documents for interfaces and gaps.
• Collaborate across internal teams to optimize system performance and platform compatibility.
• Develop technical specifications, integration documentation, and certification artifacts for customer acceptance.
• Represent Castelion at customer meetings, design reviews, and demonstrations.
• Ensure contract deliverables meet requirements, schedule, and quality standards.

Skills

Systems engineering

Missile integration

Platform integration

Test planning

Stakeholder communication

Education

Bachelor's degree in aerospace, mechanical, electrical engineering, physics, or related technical field

Master's degree in a relevant technical field

Job description

Castelion Corporation in Torrance, CA is seeking a multi-level Weapons Integration Engineer to own platform integration from concept through deployment, coordinating with propulsion, avionics, GNC, software, and manufacturing teams. This role requires collaboration with government customers and external partners to ensure mission-ready weapon systems.

The focus areas include mission systems integration, airworthiness, launcher integration, and test & evaluation, with responsibilities spanning