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Toronto, Canada
MaRS Discovery District
101 College Street, Suite 155
Toronto, ON, Canada, M5G 1L7

San Francisco, USA

Oslo, Norway
PierX, Bryggegata 3, 0250 Oslo

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Portfolio Careers

ArcTern Careers

If you're looking for a new challenge in the earthtech sector, we encourage you to take a look at these postings from our thriving partner companies

We’re on a mission to find, fund and help earthtech entrepreneurs as they work to solve our most pressing environmental challenges—and we’re always on the lookout for talent. If you’re passionate about finding sustainable solutions that will make an impact on both the climate and the new economy, we’d love to hear from you.

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On-site & Remote

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Showing 37 jobs
Muon Space

Mechanical Engineering Intern (Summer 2026)

Mountain View, CA, USA

USD 50-50 / hour + Equity

8 days
Defense & Space
Government and Military
51 - 200 employees
Series B
Internship
Read more
about Mechanical Engineering Intern (Summer 2026) at Muon Space
Muon Space

Senior ADCS Engineer

Mountain View, CA, USA

USD 144k-213k / year + Equity

4 days
Defense & Space
Government and Military
51 - 200 employees
Series B
Senior
Read more
about Senior ADCS Engineer at Muon Space
Liminal

Director of Data Science - Applied Physics & ML

21 days
Manufacturing
Mechanical or Industrial Engineering
11 - 50 employees
Director
Read more
about Director of Data Science - Applied Physics & ML at Liminal
Palmetto

Senior Product Manager, Data Products

United States; Remote
16 days
Renewables & Environment
Sustainability
201 - 1000 employees
Senior
Read more
about Senior Product Manager, Data Products at Palmetto
Smarter Alloys

Medical Device Engineer - Intermediate

Cambridge, ON, Canada
4 days
Health
Medical Devices
11 - 50 employees
Seed
Mid-Senior Level
Read more
about Medical Device Engineer - Intermediate at Smarter Alloys
Muon Space

ADCS Engineer

Mountain View, CA, USA

USD 130k-194k / year + Equity

4 days
Defense & Space
Government and Military
51 - 200 employees
Series B
Mid-Senior Level
Read more
about ADCS Engineer at Muon Space
Harbinger

Principal AME Equipment Engineer, GA

Garden Grove, CA, USA

USD 160k-190k / year + Equity

9 days
Automotive
Manufacturing
201 - 1000 employees
Series B
Senior
Read more
about Principal AME Equipment Engineer, GA at Harbinger
Muon Space

Instrument Development Engineer

Mountain View, CA, USA

USD 138k-205k / year + Equity

18 days
Defense & Space
Government and Military
51 - 200 employees
Series B
Mid-Senior Level
Read more
about Instrument Development Engineer at Muon Space
Harbinger

Supplier Quality Engineer - Stampings

Garden Grove, CA, USA

USD 100k-150k / year + Equity

23 days
Automotive
Manufacturing
201 - 1000 employees
Series B
Mid-Senior Level
Read more
about Supplier Quality Engineer - Stampings at Harbinger
Parity

Building Intelligence Engineer - Boston

Remote
1 month
Non-Profit Organization Management
1 - 10 employees
Mid-Senior Level
Read more
about Building Intelligence Engineer - Boston at Parity
Harbinger

Powertrain Manufacturing Test Engineer

Garden Grove, CA, USA

USD 120k-150k / year + Equity

1 month
Automotive
Manufacturing
201 - 1000 employees
Series B
Mid-Senior Level
Read more
about Powertrain Manufacturing Test Engineer at Harbinger
Muon Space

Spacecraft Structures Analyst

Mountain View, CA, USA

USD 142k-206k / year + Equity

1 month
Defense & Space
Government and Military
51 - 200 employees
Series B
Mid-Senior Level
Read more
about Spacecraft Structures Analyst at Muon Space
SPAN

Head of Hardware Test

San Francisco, CA, USA

USD 200k-250k / year + Equity

1 month
Renewables & Environment
Sustainability
201 - 1000 employees
Series B
Director
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about Head of Hardware Test at SPAN
Muon Space

Simulation Engineer

Mountain View, CA, USA; Remote

USD 129k-192k / year + Equity

1 month
Defense & Space
Government and Military
51 - 200 employees
Series B
Mid-Senior Level
Read more
about Simulation Engineer at Muon Space
SPAN

Staff Systems Test Verification Engineer

Bengaluru, Karnataka, India
2 months
Renewables & Environment
Sustainability
201 - 1000 employees
Series B
Mid-Senior Level
Read more
about Staff Systems Test Verification Engineer at SPAN
Parity

Senior Building Intelligence Engineer - NY

New York, NY, USA
2 months
Non-Profit Organization Management
1 - 10 employees
Mid-Senior Level
Read more
about Senior Building Intelligence Engineer - NY at Parity
Harbinger

Principal AME Equipment Engineer, Battery

Garden Grove, CA, USA

USD 160k-190k / year + Equity

2 months
Automotive
Manufacturing
201 - 1000 employees
Series B
Senior
Read more
about Principal AME Equipment Engineer, Battery at Harbinger
Muon Space

Manufacturing Engineer

Mountain View, CA, USA

USD 140k-155k / year + Equity

3 months
Defense & Space
Government and Military
51 - 200 employees
Series B
Mid-Senior Level
Read more
about Manufacturing Engineer at Muon Space
SPAN

Senior Hardware Test Engineer

San Francisco, CA, USA
3 months
Renewables & Environment
Sustainability
201 - 1000 employees
Series B
Senior
Read more
about Senior Hardware Test Engineer at SPAN
SPAN

Hardware Test Engineer

San Francisco, CA, USA
3 months
Renewables & Environment
Sustainability
201 - 1000 employees
Series B
Mid-Senior Level
Read more
about Hardware Test Engineer at SPAN
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