Senior Spacecraft Propulsion Systems Engineer I - Secret Clearance (Aerospace)

Location: Long Beach, California, United States; onsite role. U.S. citizenship is required. The position requires an active Secret clearance with TS/SCI eligibility and compliance with U.S. ITAR authorization requirements.

Base salary: $115,000–$173,000 USD annually. Total compensation, including equity: $135,000–$208,000 USD annually.

Company

hirify.global is an end-to-end space company developing rockets, spacecraft, and critical subsystems for civil, commercial, and defense missions.

What you will do

• Own the development of new and existing spacecraft propulsion and fluidic products or systems as a technical lead.
• Perform conceptual and detailed performance calculations, systems modelling, analysis, and system design.
• Gather, define, and manage system requirements across the development lifecycle.
• Plan, set up, instrument, execute, and analyze propulsion system tests.
• Lead technical risk-based decisions, project schedules, task assignments, and stakeholder communications.
• Mentor engineers and technicians and contribute to engineering processes, documentation, training, and reviews.

Requirements

• Bachelor’s degree in aerospace, mechanical, mechatronics, or another relevant engineering discipline.
• At least 5 years of experience in propulsion system development or another high-performance engineering field.
• Active Secret clearance with TS/SCI eligibility.
• U.S. citizenship and eligibility under applicable ITAR requirements.
• Expertise in propulsion system modelling, static and transient analysis, and model validation using Amesim, EcosimPro, Simulink, or Simscape.
• Experience with end-to-end systems engineering, including requirements, detailed design, qualification, production, acceptance testing, and risk-based decision-making.

Nice to have

• Experience with Jama, Python for data manipulation, NX or equivalent CAD software, GD&T, and engineering drawings.
• Experience with Teamcenter, Windchill, or similar product lifecycle management software.
• Experience with National Instruments data acquisition systems and flight hardware testing and troubleshooting.
• Master’s degree or PhD, hands-on engineering experience, and strong communication skills.

Culture & Benefits

• Fast-paced, collaborative environment focused on ambitious space missions and meaningful hardware.
• Company stock, an employee stock purchase program with a 15% discount, and equity as part of total compensation.
• Medical, dental, and vision coverage, including HMO, PPO, and an HDHP with HSA contribution.
• Paid vacation and sick time, 11 paid holidays, parental leave, disability and life insurance, and a 401(k) with company match.
• Additional benefits include subsidized EV charging, fitness facilities or gym discounts, snacks and beverages, and employee discounts.