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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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Showing 27 jobs
Harbinger

Manager, Software Engineering

Garden Grove, CA, USA

USD 160k-220k / year + Equity

3 days
Automotive
Manufacturing
201 - 1000 employees
Series C+
Director
Read more
about Manager, Software Engineering at Harbinger
Harbinger

AME Industrial/Productivity Engineer

Garden Grove, CA, USA

USD 140k-160k / year + Equity

15 days
Automotive
Manufacturing
201 - 1000 employees
Series C+
Mid-Senior Level
Read more
about AME Industrial/Productivity Engineer at Harbinger
Muon Space

Environmental Test Engineer

San Jose, CA, USA

USD 164k-177k / year + Equity

15 days
Defense & Space
Government and Military
51 - 200 employees
Series B
Mid-Senior Level
Read more
about Environmental Test Engineer at Muon Space
Muon Space

Test Engineering Intern (AIT) Summer 2026

San Jose, CA, USA

USD 50-50 / hour + Equity

25 days
Defense & Space
Government and Military
51 - 200 employees
Series B
Internship
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about Test Engineering Intern (AIT) Summer 2026 at Muon Space
Muon Space

Senior Mechanical Engineer

USD 181k-202k / year + Equity

24 days
Defense & Space
Government and Military
51 - 200 employees
Senior
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about Senior Mechanical Engineer at Muon Space
Muon Space

Staff Software Engineer, Simulation

San Jose, CA, USA

USD 207k-234k / year + Equity

1 month
Defense & Space
Government and Military
51 - 200 employees
Series B
Senior
Read more
about Staff Software Engineer, Simulation at Muon Space
Muon Space

Satellite Operations Platform Manager

San Jose, CA, USA; Remote

USD 129k-205k / year + Equity

1 month
Defense & Space
Government and Military
51 - 200 employees
Mid-Senior Level
Read more
about Satellite Operations Platform Manager at Muon Space
Harbinger

MES Engineer

Garden Grove, CA, USA

USD 120k-140k / year + Equity

1 month
Automotive
Manufacturing
201 - 1000 employees
Series C+
Mid-Senior Level
Read more
about MES Engineer at Harbinger
Muon Space

Systems Engineering Intern (Summer 2026)

San Jose, CA, USA

USD 50-50 / hour + Equity

1 month
Defense & Space
Government and Military
51 - 200 employees
Internship
Read more
about Systems Engineering Intern (Summer 2026) at Muon Space
Harbinger

Quality Technician, Chassis/GA (Contract - 2nd shift)

Garden Grove, CA, USA

USD 25-32 / hour

1 month
Automotive
Manufacturing
201 - 1000 employees
Series C+
Associate
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about Quality Technician, Chassis/GA (Contract - 2nd shift) at Harbinger
Harbinger

Quality Technician, Battery (Contract - 2nd shift)

Garden Grove, CA, USA

USD 25-32 / hour

1 month
Automotive
Manufacturing
201 - 1000 employees
Series C+
Entry Level
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about Quality Technician, Battery (Contract - 2nd shift) at Harbinger
Muon Space

Electrical Hardware Engineer

USD 162k-189k / year + Equity

2 months
Defense & Space
Government and Military
51 - 200 employees
Associate
Read more
about Electrical Hardware Engineer at Muon Space
SPAN

Enterprise Systems Architect

Bengaluru, Karnataka, India
2 months
Renewables & Environment
Sustainability
201 - 1000 employees
Series B
Senior
Read more
about Enterprise Systems Architect at SPAN
Soly

Medior / Senior Front-End Developer

EUR 3,500-5k / month

2 months
Renewables & Environment
Sustainability
51 - 200 employees
Series B
Mid-Senior Level
Read more
about Medior / Senior Front-End Developer at Soly
Parity

Building Intelligence Engineer - Boston

Remote
3 months
Software
11 - 50 employees
Series B
Mid-Senior Level
Read more
about Building Intelligence Engineer - Boston at Parity
SPAN

Senior Manager of Hardware Test

San Francisco, CA, USA

USD 200k-250k / year + Equity

3 months
Renewables & Environment
Sustainability
201 - 1000 employees
Series B
Director
Read more
about Senior Manager of Hardware Test at SPAN
Cyclic Materials

Senior Electrical Engineer

Toronto, ON, Canada
3 months
Renewables & Environment
Sustainability
51 - 200 employees
Series B
Senior
Read more
about Senior Electrical Engineer at Cyclic Materials
Cyclic Materials

Principal Engineer

Toronto, ON, Canada
3 months
Renewables & Environment
Sustainability
51 - 200 employees
Series B
Senior
Read more
about Principal Engineer at Cyclic Materials
Parity

Senior Building Intelligence Engineer - NY

New York, NY, USA
4 months
Software
11 - 50 employees
Series B
Mid-Senior Level
Read more
about Senior Building Intelligence Engineer - NY at Parity
Muon Space

Staff Software Security Engineer

San Jose, CA, USA; Remote

USD 180k-215k / year + Equity

5 months
Defense & Space
Government and Military
51 - 200 employees
Senior
Read more
about Staff Software Security Engineer at Muon Space
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