Flight Software Engineer: Real-Time Embedded (All Levels)

Castelion; Torrance (CA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Generous benefits package

Job summary

Castelion in Torrance, CA is seeking a Flight Software Engineer to design, develop, and test real-time embedded flight software powering advanced missile systems. You will work with multidisciplinary teams to deliver high-performance software that must operate reliably under extreme conditions.

This hands-on role rewards engineers who solve hard problems, build robust systems from the ground up, and move fast while upholding rigorous software lifecycle practices, verification, and security

Qualifications

• Bachelors or Masters degree in Computer Science, Electrical Engineering, Aerospace Engineering, or related field.
• Experience: open to candidates across all experience levels.
• Proficiency in C/C++ and RTOS.
• Familiarity with hardware/software integration and real-time system constraints.
• Experience working with GNC systems or control-intensive applications.
• Strong testing practices including simulation and HIL environments.
• Excellent problem-solving and attention to detail.
• Ability to work in a fast-paced, multidisciplinary team; Top-Secret clearance eligible.

Responsibilities

• Design, develop, and test real-time embedded flight software for missile systems
• Collaborate with GNC, systems, and hardware teams for seamless integration
• Implement and maintain software for high-reliability, safety-critical environments
• Support simulation, HIL, and flight testing to validate performance
• Participate in root cause analysis and debugging across software and system interfaces
• Follow rigorous software lifecycle practices including configuration management and verification
• Contribute to improving development processes, tools, and standards
• Stay informed on emerging technologies and best practices in flight software and real-time systems

Skills

C/C++

RTOS

GNC

Real-time systems

Testing & verification

Embedded software

Top-Secret clearance

Education

Bachelors/Masters in CS/EE/Aerospace

Job description

Castelion in Torrance, CA is seeking a Flight Software Engineer to design, develop, and test real-time embedded flight software powering advanced missile systems. You will work with multidisciplinary teams to deliver high-performance software that must operate reliably under extreme conditions.

This hands-on role rewards engineers who solve hard problems, build robust systems from the ground up, and move fast while upholding rigorous software lifecycle practices, verification, and security