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Overlap

Founding Mechanical Engineer

Salary$50k – $100k
LocationSan Francisco, CA, US / London, England, GB
Work modeon-site
Typefull-time
SeniorityEntry
EquityIncluded
Company size51–200 people
First seenOct 6, 2026 · 5d ago
Verified live5d ago
At a glanceSummarised by Seekless from the posting.
Must have3
Built drones before: designed, assembled and flown real UAVs
CAD experience for enclosures, mounts and airframe integration
Hands-on with autonomous drones running ArduPilot, INAV or PX4
Nice to have5
Systems integration across mechanical, electrical and software
Prototyping, 3D printing and rapid iteration
FPV and/or fixed wing piloting experience
Thermal, vibration and environmental testing for real-world conditions
Manufacturing and design-for-assembly experience
Eligibility1
US/UK citizens only
Skills
C++
CAD
ArduPilot
INAV
PX4
Benefits
Equity
Side project stipend
Streamline Systems · F26
Founding Mechanical Engineer
Precision navigation for UAVs operating without GPS.
LocationSan Francisco, CA, US / London, England, GB
TypeFull-time
Salary$50K - $100K
Equity0.50% - 2.00%
ExperienceAny (new grads ok)
VisaUS citizen/visa only
C++CAD Design
Apply to this role
About the role
Streamline Systems (F26)
We’re building the replacement for GPS, a low-cost navigation module that positions platforms and guides drones without satellites. It’s flying today. Now we need it hardened, productised and manufacturable.
I’m looking for a founding mechanical engineer with extremely high agency. It already flies; you’ll own how the system comes together and integrates onto real drones, end-to-end. You will be out in the field testing with customers, not sitting behind a laptop.
I don’t care about degrees. I care that you’ve actually built drones - hobby projects, personal builds and garage tinkering count for more than any fancy piece of paper.
You should have:
•
Built drones before: designed, assembled and flown real UAVs (hobby and personal projects absolutely count)
•
CAD experience for enclosures, mounts and airframe integration
•
Hands-on with autonomous drones running ArduPilot, INAV or PX4
Nice to have:
•
Systems integration across mechanical, electrical and software
•
Prototyping, 3D printing and rapid iteration
•
FPV and/or fixed wing piloting experience
•
Thermal, vibration and environmental testing for real-world conditions
•
Manufacturing and design-for-assembly experience
Why join:
•
Solve a genuine national-security gap for the US, UK and allies
•
Extreme ownership. You make the calls, no bureaucracy.
•
$50–100k + 0.5–2% equity (more for the right person)
•
$10k/year for a side project of your choosing passion project or something we build into the product
SF for the batch, US/UK be flexible on location. US/UK citizens only. If this is you, apply now.
Early-career? If you’ve built and flown your own drones and want to prove yourself, I’ll trial you as an intern with a path to full-time, tell me what you’ve built and flown.
Apply to this role
About Streamline Systems
Streamline Systems is building the replacement for GPS.
We produce a low-cost navigation module designed to position military platforms, guide drones, and back up critical national infrastructure, all without satellites and at a fraction of the cost of existing solutions. Backed by Y Combinator, we’re working with defence and PNT partners across the US and Europe to remove satellite dependency.
Other roles at Streamline Systems
[### Founding Electrical Engineer
Full-time · San Francisco, CA, US / London, England, GB · $60K - $180K](https://www.workatastartup.com/jobs/110697)
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