SECTION I · THE BRIEF
Brief #95387Updated 21 AUG 2026HAWTHORNE, CAYcY COMBINATOR
Employbl Company Profile

Mechanical Engineer

G.R.U. Space operates within the emergent space resource utilization sector, specifically pioneering automated lunar mining.

Location
Hawthorne, CA
Company size
2–10
Posted
2w ago
Via
Yc
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GRUSPACE logo

Mechanical Engineer · GRUSPACE

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Job title
Mechanical Engineer
Job location
Hawthorne, CA, US
Job listing URL
https://www.ycombinator.com/companies/galactic-resource-utilization-space-inc-gru-space/jobs/BPAqbIe-mechanical-engineer
Job description
**Your product will land on the Moon next year.** You’ll design, build, and test our 2027 Lunar Payload: the one that manufactures humanity’s first bricks on the Moon and deploys an inflatable habitat bladder. This is hands-on, full-lifecycle hardware engineering at a pace most aerospace companies can’t keep up with. **What you’ll do:** * Own the mechanical design of the payload from concept through flight hardware. * Rapidly prototype, test, break things, and iterate. * Manage ICD with the lunar lander provider and be the primary point of contact. * Run and interpret structural/mechanism analysis to support design trades. **What we’re looking for:** * Deep fluency with CAD and FEA tools: you think in 3D and can back it up with analysis. * Experience designing spaceflight hardware end-to-end (build, test, deploy). * Comfort with mechanisms: actuators, seals, deployables, pressure systems, end effectors, and more. * You’re using the latest AI tools every day (i.e., Opus 4.6/GPT 5.4, in appropriate harness) to massively increase your output and do things you otherwise couldn’t. * You’ve built flight hardware before. If you want to maximize the probability that humanity becomes interplanetary in your lifetime, apply and share a portfolio of the technical work you’re most proud of.
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Where this role is based

Hawthorne, CA

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GRUSPACE headquarters

San Francisco, CA

Company size

2–10 employees

Founded

2025

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Investors

Y Combinator