Senior Flight Systems Engineer - Space & Hypersonics

Cimarron Inc.; Seal Beach (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401(k) contributions

Educational reimbursement

Job summary

Cimarron Inc. in Seal Beach, CA, is seeking a Senior Flight Systems Engineer to rapidly prototype, develop, and field novel space and hypersonic capabilities. You will design GN&C algorithms, build high‑fidelity simulations, implement and test flight software, and support integration and flight test in both atmospheric and space.

Must be able to work 100% onsite in Seal Beach, CA. Key duties include developing guidance laws, 6‑DOF dynamics, and GN&C software, collaborating with cross‑functional

Qualifications

• U.S. citizen due to facility security requirements.
• Ability to pass a pre-employment background check and drug screening.
• Must possess a valid Real ID-compliant driver’s license or state ID.
• Must be able to obtain and maintain a U.S. Security Clearance.
• 20+ years of related work experience or equivalent education/experience.
• Engineering experience with aircraft, missile, spacecraft, autonomous platforms or similar vehicles.
• Experience for on-orbit and ground systems operations.
• Proficiency with MATLAB and Simulink.
• Proficiency developing GN&C algorithms, models and simulations.
• Experience developing with C/C++, Python or C#.
• Bachelor of Science degree in Engineering or closely related field.

Responsibilities

• Design, implement, and verify guidance, navigation, and control algorithms for spacecraft, re-entry vehicles, and hypersonic/airborne platforms.
• Develop and maintain 6-DOF dynamics simulations and analysis tools for mission/performance assessment.
• Implement and validate GN&C flight software (MATLAB/Simulink models and C/C++ prototypes) and integrate with testbeds and avionics.
• Apply astrodynamics and flight mechanics to mission design and trajectory optimization.
• Apply aerodynamics and flight mechanics to re-entry guidance and control functions.
• Develop powered and unpowered guidance laws and autonomy tools for on-orbit and atmospheric operations.
• Support troubleshooting of operational anomalies, tests, and service incidents.
• Produce concepts of operations, simulation artifacts, and test procedures for rapid prototype to flight test.
• Collaborate with cross-functional teams and communicate technical tradeoffs to stakeholders.
• Independently identify inefficiencies and implement reusable tools and automations.

Skills

GN&C knowledge

Astrodynamics

Flight dynamics

Model-based development

Systems engineering

Spacecraft operations

Education

Bachelor of Science in Engineering or related field

Master's/PhD preferred

Tools

MATLAB

Simulink

C/C++

Python

C#

Job description

Cimarron Inc. in Seal Beach, CA, is seeking a Senior Flight Systems Engineer to rapidly prototype, develop, and field novel space and hypersonic capabilities. You will design GN&C algorithms, build high‑fidelity simulations, implement and test flight software, and support integration and flight test in both atmospheric and space.

Must be able to work 100% onsite in Seal Beach, CA. Key duties include developing guidance laws, 6‑DOF dynamics, and GN&C software, collaborating with cross‑functional