# Senior Mechanical Engineer at AMCA > United States · Senior · Software engineering · open. Source: https://alderhq.app/jobs/greenhouse%3Aamca%3A4238979009 (read 2026-11-05). ## Facts (observed) - Company: [AMCA](https://alderhq.app/companies/amca) - Location text: El Segundo, CA; HQ - Where it can be done from (inferred): United States (evidence: "Location: El Segundo, CA; HQ") - Posted: 2026-07-01 (126 days ago) - First seen by alder: 2026-11-02 · last verified: 2026-11-04 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://job-boards.greenhouse.io/amca/jobs/4238979009 - Skills listed (inferred): Go ## Pay and sponsorship - Posted pay: $150k–$220k per year (from the listing's pay field) - Market band for similar posted roles (Los Angeles, n 475): p25 $155k, median $167k, p75 $185k ## Description (the employer's text) There was a time when all of America believed that the future of the physical world could be radically different. The engineers of the mid-1900s put a man on the moon in eight years, designed and built planes and submarines from scratch in under three, and conceived of building things we wouldn’t even be able to dream up today. Today, the last of the engineers who imagined and built these systems are retiring. As they go, we lose not only the engineering knowledge gained from their decades of imagination and trial-and-error, but also the spirit that made that imagination possible. Amca is working day-in and day-out to restore America’s ability to engineer anything that our critical systems depend on, and reinvigorate the cycle of creation that allows imagination to shape physical reality. We rapidly develop and manufacture new critical components and subsystems required to build and sustain the planes, military vehicles, and core infrastructure America needs. By restoring the capability of our antiquated supply chains, we increase the country’s capacity to imagine and realize new systems, and make a physical world that looks very different from today. ### Overview The Mechanical Design Engineering role is responsible for developing flight hardware for new and existing airframes. You will serve as the extreme owner of the product from concept through qualification, and eventually production handoff. Your day will consist of designing, analyzing, and building a wide range of fluid and structural systems. Most importantly you will own the relationship between customer level requirements and the build/test engineering teams. Responsibilities: - Lead design and prototyping of new mechanical hardware across a component family or subsystem - Develop state-of-the-art, manufacturable flow control devices (valves, regulators, solenoids) and mechanisms (actuators, switches, pistons). Question requirements, simplify, and accelerate aerospace component deliveries - Generate and maintain detailed drawings, component specifications, analysis, and risk assessments. We believe design engineers should perform their own concept design, technical analysis, and first unit builds, so we minimize compartmentalized duties wherever possible - Drive trade studies and architecture decisions that cross team boundaries - Lead PDR and CDR as the responsible engineer; own the technical narrative end-to-end - Set technical direction for qualification campaigns. Define qual strategy, not just execute it - Spearhead root cause investigations in development, production, and test. Implement corrective actions to prevent repeat failures - Set the standard for rigorous component design and qualification testing. As a senior member of an early-stage startup, you'll define company design and testing policies, internal standards, and best practices - Mentor junior design engineers. Review their drawings, analysis, and design choices, and unblock them when they're stuck - Act as the ultimate technical authority for the components you own. Work directly with customers, manufacturers, and external review boards as problems arise - Prototype new components at our in-house R&D lab. You'll stay hands-on through prototype development - Own vendor relationships through NPI, including audits, source inspections, and supplier qualification - Work with test engineering to define and execute qualification plans - Work closely with build engineers to ensure new designs are manufacturable at production facilities and DFM feedback is incorporated - Represent Amca to customers in technical reviews, audits, and anomaly response ### Basic Qualifications - Bachelor's or advanced degree in aerospace, mechanical, manufacturing, or materials engineering, or engineering physics - 5+ years of mechanical or fluids design, analysis, and build experience - Demonstrated ownership of at least one component or subsystem from concept through qualification or flight - Track record of shipping hardware, not just designing it - Strong understanding of engineering first principles, specifically thermodynamics, fluid dynamics, and solid mechanics --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Aamca%3A4238979009 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.