Propulsion Mechanical Design Engineer (Mid-Career)

San Luis Obispo, California, United States DEFENSE Full-time $155k to $195k Posted Sep 2, 2026
Apply on Mach Industries (opens in a new tab) Sourced via job-boards.greenhouse.io · Posted 2026-09-02

About this role

Mach Industries is hiring a Propulsion Mechanical Design Engineer (Mid-Career), full-time, on-site in San Luis Obispo, California, United States, in the DEFENSE sector.

About Mach Industries

Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition.

Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security.

The Role

Mach Industries is seeking Mechanical Design Engineers to join our revolutionary new division, Mach Propulsion. We’re developing a high-performance small turbine engine from the ground up, designed for scalable, high-rate manufacturing. This is a unique opportunity to apply your experience to a first-of-its-kind propulsion system. We’re looking for engineers with foundational experience in propulsion, drivetrain systems, or rotating machinery who are excited to solve complex engineering problems in a fast-paced, hands-on environment.

Key Responsibilities

  • Design and Development: Design turbojet engine components and subsystems using Siemens NX, leveraging tools such as CAD, CFD, and FEA. Produce 3D models and 2D drawings optimized for manufacturing and performance.

  • Full Lifecycle Ownership: Participate in concept generation, trade studies, prototyping, testing, and iteration. Engage directly with test teams to validate your hardware.

  • Team Collaboration: Work closely with fabrication, machining, test, and engineering teams to ensure high-quality, on-time delivery of components.

Required Qualifications

  • BS in Mechanical, Aerospace, Electrical Engineering or related field.

  • 1+ years of mechanical engineering experience in propulsion, powertrain, or mechanical assemblies involving high-speed rotating hardware.

  • Proficient in Siemens NX and familiar with PLM tools like Teamcenter.

  • Working knowledge of ASME Y14.5 for tolerance control and manufacturability.

  • Strong base in structures, materials, and manufacturing processes.

  • Experience with prototyping and testing; comfortable in lab and shop environments.

Preferred Qualifications

  • Experience designing or developing turbomachinery, small turbine engines, or air-breathing propulsion systems.

  • Familiarity with high-rate manufacturing methods and strong understanding of DFM principles.

  • Exposure to advanced materials such as composites and high-temperature alloys in propulsion environments.

  • Experience supporting or leading test rig design, component integration, or validation of hardware.

  • Understanding of defense or aerospace regulations and qualification processes.

Additional Requirements

  • Available to work extended hours and weekends as needed

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here .

Engineer $115,000 — $150,000 USD Senior Engineer $155,000 — $195,000 USD

At Mach, we believe that compensation is more than just a paycheck. It's a comprehensive package designed to reward the time, skills, and expertise you bring to our team. We are committed to offering competitive compensation that is equitable, transparent, and aligned with market trends.

Key Elements of Our Compensation Philosophy:

  • Competitive Salaries: We continuously research market rates to ensure our salaries are competitive with those in our industry and geographic location.
  • Performance-Based Incentives: Our bonus structure is tied to both individual and company performance, creating a win-win scenario that motivates our team members to excel.
  • Equity Participation: We offer stock options or equity to employees, ensuring that you share in the success and growth of the company.
  • Benefit Packages: Our benefits include healthcare, dental and vision plans, retirement savings, and paid time off, because we understand that your well-being extends beyond the office.
  • Professional Development: We allocate funds for continuing education, training, and career growth.
  • Transparency: We are committed to openness about our compensation tiers and how decisions are made, ensuring trust and mutual respect.

By joining Mach, you’re not just accepting a job—you’re becoming a key part of a team that values your contributions and invests in your growth. Together, we aim to create a rewarding environment that sets the stage for long-term success.

Data Privacy
To view Mach Industries candidate data privacy policy, please visit https://machindustries.com/privacy-policy .

Disclosures

This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.

The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offers may vary based on (but not limited to) work experience, education and training, critical skills, and business considerations. Highly competitive equity grants are included in most offers and are considered part of Mach’s total compensation package. Mach offers benefits such as health insurance, retirement plans, and opportunities for professional development.

Description from Mach Industries's official posting. Always confirm details on the company careers page.

Apply on Mach Industries Applications go directly to Mach Industries. Curated by Larry Sherwood Jr.

About Mach Industries

Mach Industries

Company in the mobility sector tracked nightly on the Mobility Jobs board.

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Larry Sherwood Jr.

About Larry Sherwood Jr.

Talent Acquisition Leader specializing in mobility, EV, and frontier tech. 1,000+ hires across roles ranging from production technicians to VPs, including 48 hires for the AFEELA U.S. launch at Sony Honda Mobility (98% offer acceptance, $1.5M+ agency savings). SHRM-CP certified. Build recruiting functions from scratch, no agencies.

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Curated by Larry Sherwood Jr. on the free Mobility Jobs board. Pulled nightly from company applicant tracking systems. Apply directly on the source link above to be considered.