Skip to content

Open nowPosted 4 days ago

Principal Mechanical Design Engineer

Astro Mechanica36 open roles

Pay
$220,000 – $270,000 a year
Where
San Francisco
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowPrincipal Mechanical Design EngineerAstro Mechanica · San Francisco
  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Astro Mechanica's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. Astro Mechanica postings stay open a median of 52 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: posted 4 days ago

Astro Mechanica median: 52 days open

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 hardcore engineers who live and breathe aerospace. We’re generalists who each have subject matter expertise and operate in a flat organizational structure. We move fast and build world-changing technology in a pragmatic and competent workplace culture.

WHO YOU ARE:

You’re a principal-level mechanical engineer who has led the design of complex hardware from a blank sheet to a fielded product, and you’ve built the judgment that comes from seeing designs succeed and fail in test. You set technical direction, make the hard architecture calls, and raise the bar for everyone around you, while staying close to the hardware yourself. You might come from aerospace, automotive, motorsport, energy, industrial turbomachinery, or another field where hardware runs at the edge of its limits. Propulsion experience is highly valued but not required. What matters most is a record of leading hard mechanical programs to success.

At Astro Mechanica, you’ll be a technical leader on Duality™, our jet engine built to be efficient from takeoff through supersonic flight. You’ll own the mechanical architecture of major engine systems and guide them from early prototype through flight qualification, vehicle integration, and aircraft flight. You’ll set the test-like-you-fly standard for the team.

WHAT YOU’LL DO:

- Own the mechanical architecture of major engine subsystems, defining requirements, interfaces, and design approach

- Lead trade studies that shape engine configuration, and make clear, defensible decisions when the data is incomplete

- Set design standards, analysis practices, and review rigor across the mechanical design team

- Lead design reviews and serve as the technical authority on mechanical design questions

- Mentor senior and mid-level engineers through design reviews, hands-on guidance, and day-to-day collaboration

- Work across propulsion, aircraft, test, and manufacturing teams to resolve system-level tradeoffs

- Stay hands-on in CAD, analysis, prototype builds, and testing when the work calls for it

- Lead root-cause investigations on hardware failures and drive corrective actions to closure

- Identify technical risks early and build the plans to retire them

WHAT WE’RE LOOKING FOR:

- 10+ years of hands-on mechanical design experience, including technical leadership of complex hardware programs from concept through build and test

- A track record of owning the architecture of a major system or product, not just individual components

- Deep expertise in a major CAD package (Siemens NX preferred; we’ll support your transition from CATIA, Creo, or SolidWorks)

- Expert knowledge of manufacturing processes, including machining, additive, and sheet metal, along with precision measurement and GD&T

- A strong command of structural analysis, heat transfer, and fluid mechanics, with the judgment to know when analysis is good enough and when to go test

- Experience mentoring engineers and raising the technical bar of a team

- The ability to communicate complex technical tradeoffs clearly to engineers, leadership, and external stakeholders

- Comfort making decisions under uncertainty in a fast-moving environment

NICE TO HAVE:

- Experience designing propulsion systems, such as gas turbines, rocket engines, or other turbomachinery

- Experience with high-temperature, high-speed rotating, or pressurized hardware

- Flight hardware design, qualification, or certification experience

- Familiarity with data acquisition, instrumentation, and test program design

- Exposure to electromechanical systems or power electronics integration

- Experience at an early-stage hardware company during rapid growth

PERKS AND 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

- Company-funded perks, including weekly team lunches and Astro Mechanica swag

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.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Astro Mechanica's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.
  3. We apply on Astro Mechanica's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.
  4. Every reply, sorted

    Astro Mechanica's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.
  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.