Principal Fuel Systems Engineer (X-BAT)

Location: On-site or hybrid in Dallas, Texas; Boston, Massachusetts; or San Diego, California. Remote work may be considered for highly qualified candidates with up to 25% travel. U.S. citizenship is required.

Salary: $209,197–$313,795 per year, plus potential bonus, benefits, and equity.

Company

hirify.global is a venture-backed defense technology company developing intelligent systems, including autonomy software, unmanned aircraft, and simulation technologies.

What you will do

• Architect end-to-end fuel systems covering storage, transfer, venting, and pressurization for autonomous aircraft.
• Integrate fuel systems with propulsion, structures, avionics, and thermal systems.
• Model and analyze flow behavior, vapor suppression, slosh dynamics, and thermal effects.
• Define performance requirements, verification strategies, design reviews, trade studies, and risk assessments.
• Lead supplier selection, component qualification, acceptance testing, and ground and flight-test support.
• Mentor engineers, investigate system anomalies, and contribute to hybrid-electric and alternative-fuel technology roadmaps.

Requirements

• Bachelor’s or master’s degree in aerospace, mechanical, or a related engineering discipline.
• 12–15+ years of experience in aircraft fuel systems, aerospace fluids, or propulsion integration.
• Expertise in fuel-system design, analysis, certification, fluid mechanics, thermodynamics, and CFD for manned or unmanned aircraft.
• Experience with ANSYS Fluent, OpenFOAM, MATLAB/Simulink, and CAD tools such as NX, CATIA, or SolidWorks.
• Technical leadership and mentoring experience in multidisciplinary teams, including familiarity with FAA and MIL-STD certification and validation testing.
• U.S. citizenship required; remote candidates must be able to travel up to 25%.

Nice to have

• Experience developing UAV, fighter, or ISR platforms.
• Experience leading fuel-system programs from concept through flight testing.
• Knowledge of low-observable fuel systems, vapor suppression, hybrid-electric integration, or advanced fuels.
• Ability to obtain a S//SAR security clearance or an active or previous security clearance.

Culture & Benefits

• Full-time regular employment with pay within the listed range, bonus potential, benefits, and equity.
• Work is primarily on-site or hybrid, with remote arrangements considered for highly qualified candidates.
• Work on intelligent defense systems and advanced autonomous aircraft.
• Offers are contingent on a cleared background and possible reference check.