Mechanical Design Engineer (Aerospace)

Location: San Francisco, United States; in-office work five days a week is an essential part of the role.

Salary: $140K–$170K per year.

Company

hirify.global is a vertically integrated aerospace company developing a scalable technology platform for critical infrastructure, mission operations, and the future of flight, including the Duality™ jet engine.

What you will do

• Own the mechanical design of engine components and subsystems from trade studies through detailed design and release.
• Evaluate system-level impacts and collaborate with propulsion, aircraft, and test teams.
• Complete detailed design and support structural, thermal, and fluid analyses.
• Lead design reviews, incorporate stakeholder feedback, and develop prototypes, tooling, and work instructions.
• Assemble and test hardware, analyze data, verify requirements and performance, and drive corrective actions.
• Carry designs from early prototype through flight qualification, vehicle integration, and aircraft flight.

Requirements

• 3+ years of hands-on mechanical design experience taking hardware from concept through build and test.
• Proficiency in solid, surface, and sheet metal CAD modeling in a major CAD package; Siemens NX is preferred, with support for transitions from CATIA, Creo, or SolidWorks.
• Strong knowledge of machining, additive manufacturing, sheet metal, precision measurement, and GD&T.
• Working understanding of structural analysis, heat transfer, and fluid mechanics.
• Experience designing parts that were built, tested, and improved based on test results.
• Comfort working in a fast-paced environment where priorities change based on test results.
• High standards for detail and quality.

Nice to have

• Experience with propulsion systems such as gas turbines, rocket engines, or other turbomachinery.
• Experience with high-temperature, high-speed rotating, or pressurized hardware.
• Familiarity with data acquisition and instrumentation.
• Exposure to electromechanical systems or power electronics integration.
• Experience with flight hardware or qualification testing.

Culture & Benefits

• In-office work five days per week to support collaboration and company culture.
• Medical, dental, and vision insurance, including Flexible Spending Accounts.
• 401(k) program and transparent stock option plan.
• Self-managed flexible time off, including PTO, paid holidays, and sick time.
• Company-funded perks including weekly team lunches and company merchandise.