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Astro Mechanica

Senior Combustion Devices Engineer

San Francisco

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hirly's read of this role

Seniority
Senior
Country
US
Work mode
On-site / unstated
First seen by hirly
2 Sept 2026

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the posting

ABOUT US:

Astro Mechanica is a vertically integrated aerospace company developing a scalable technology platform to power critical infrastructure, mission operations, and the future of flight. We apply aerospace engineering and quality standards across our products, delivering high performance, reliability, and efficiency for the most demanding operating environments. Astro Mechanica is backed by leading venture and strategic investors, including Andreessen Horowitz (a16z), Giant Step Capital, United Airlines Ventures, and Voyager Ventures.

WHO WE ARE:

We’re a team of passionate engineers dedicated to advancing aerospace. We’re generalists with specialist depth, united by a flat structure and a shared obsession with building things that work well. We move fast, stay pragmatic, and let engineering excellence speak louder than hierarchy.

WHO YOU ARE:

You are a Senior Propulsion Engineer experienced in designing the combustion devices within propulsion systems. You come from a background working in ground power, aviation, automotive, or rocketry. You approach your work from a robust set of first principles which enable you to work methodically through challenging technical problems with feedback from test verification.

WHAT YOU’LL DO:

Lead conceptual trades for novel combustors while considering system-level impacts

Complete detailed designs with supporting structural, thermal, and fluid analyses

Implement advanced materials and manufacturing techniques to achieve performance and reliability at scale

Assemble prototypes firsthand, design complementary tooling, and establish work instructions

Conduct hardware test and analyze data to verify requirements and performance metrics

Understand empirical trends and iterate quickly through component-level and integrated testing

Diagnose hardware problems efficiently and determine corrective actions

WHAT WE’RE LOOKING FOR:

5+ years hands-on experience designing combustion devices for use in propulsion or similarly complex environments

Expertise in design and analysis of airbreathing combustors, igniters, and fuel systems

Proficient in CAD solid body and surface modeling (Siemens NX), engineering drawings, and GD&T

Strong understanding of thermodynamics, heat transfer, and fluid behavior

Hands-on prototype assembly and test stand experience

Experience with data acquisition and instrumentation selection for analyzing stability and performance in elevated temperate environments

Understanding and familiarity with high-temperature materials, coatings, and joining methods relevant to combustion

Experience with root-cause analysis of hardware failures

Takes initiative for continuous improvement (not just completing assigned tasks)

Flexibility to work in fast-paced environment

Attentive to detail and maintain a high level of quality in all work

PERKS & BENEFITS:

Comprehensive medical, dental, and vision insurance, including Flexible Spending Accounts (FSA)

401(k) program and transparent stock option plan

Self-managed and flexible time-off policy, including PTO, paid holidays, and sick time

Flexible work environment

ADDITIONAL INFORMATION:

At Astro Mechanica, we highly value in-office work to foster collaboration and strengthen our company culture. We consider working in the office five days a week an essential part of the employee's role.

Astro Mechanica is an equal opportunity employer. We proudly recruit and hire a diverse workforce and are committed to creating an inclusive environment for all employees.

Original posting on Astro Mechanica's site ↗

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