Systems Engineer IV - MSAD (Aerospace)

Location: Folsom, California, United States. The role involves travel of up to 10% for technical reviews, testing, or customer engagements. U.S. citizenship, lawful permanent residence, protected-individual status, or eligibility for required U.S. Department of State authorizations is required for ITAR compliance.

Salary: $115,000–$170,000 USD annually, plus a discretionary annual bonus.

Company

hirify.global develops defense, national security, and space technologies, including mission-critical aerospace systems.

What you will do

• Develop high-fidelity models and control algorithms for propulsion, flight control, and guidance subsystems.
• Create simulation architectures that support design iteration, verification, validation, and requirements traceability.
• Perform controllability, sensitivity, parametric, and Monte Carlo studies for dynamic systems and flight vehicle control behavior.
• Model solid rocket motors, controllable solids, actuation systems, and mechanical, thermal, and aerodynamic subsystems.
• Support requirements derivation, margin analysis, performance trade studies, mission CONOPS, and technical reviews with DoD customers.
• Collaborate with GNC, software, systems, and test teams; mentor junior engineers and author technical documentation.

Requirements

• Must have or be able to obtain and maintain an active DoD Secret Clearance.
• 7–10 years of experience in modeling, simulation, control systems, or estimation algorithm development in aerospace or defense.
• Bachelor’s degree in systems engineering, aerospace engineering, mechanical engineering, electrical engineering, or a related STEM field.
• Strong experience with dynamic system modeling, control system design, simulation infrastructure, propulsion modeling, and basic ballistics analysis.
• Proficiency in MATLAB, Simulink, Python, or equivalent modeling and control toolchains.
• Ability to work with DoD customers, lead engineering tasks across lifecycle phases, and communicate through technical documentation and presentations.

Nice to have

• Master’s degree in systems engineering or a related discipline; may substitute for one year of experience.
• Experience with Department of Defense, Missile Defense Agency, or equivalent government programs.
• Experience generating SysML diagrams for product structure, behavior, technical logic, engineering processes, and test execution.

Culture & Benefits

• Work in secure or classified environments on national defense and aerospace programs.
• Comprehensive health benefits, retirement savings, wellness program, and paid time off.
• Discretionary annual bonus plan and additional total compensation benefits.
• Fast-paced, high-accountability environment focused on technical rigor, collaboration, and continuous improvement.