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Open Job Opportunities @ MCJ Portfolio Companies

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MCJ
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Jobs

On-site & Remote

Showing 52 jobs
Nitricity

Manufacturing Engineer - Machine Assembly & Test Line

San Francisco, CA, USA

USD 120k-135k / year

1 month
Food
Food Production
11 - 50 employees
Mid-Senior Level
Exowatt

Junior Engine Development & Test Engineer

Miami, FL, USA
3 days
Renewables & Environment
Sustainability
11 - 50 employees
Seed
Mid-Senior Level
Aalo Atomics

Manufacturing Engineer

Austin, TX, USA
16 days
Energy
Utilities
11 - 50 employees
Series A
Entry Level
Phoenix Tailings

7.2. Production Engineer II

Exeter, NH, USA
17 days
Manufacturing
Mining & Metals
51 - 200 employees
Mid-Senior Level
Phoenix Tailings

7.3. Production Engineer I

Exeter, NH, USA
17 days
Manufacturing
Mining & Metals
51 - 200 employees
Entry Level
Quilt

Senior/ Staff Embedded Software Engineer

Redwood City, CA, USA

USD 170k-210k / year + Equity

22 days
Manufacturing
Mechanical or Industrial Engineering
51 - 200 employees
Series A
Senior
Mill

Product Design Engineering Intern, Fall 2025

San Bruno, CA, USA

USD 35-45 / hour

18 days
Environmental Services
Sustainability
51 - 200 employees
Series C+
Internship
Pacific Fusion

Electro-Mechanical Technician (SWING SHIFT)

Fremont, CA, USA

USD 52-65 / hour + Equity

21 days
Renewables & Environment
Sustainability
51 - 200 employees
Series A
Senior
Exowatt

Lead Engine Development & Test Engineer

Miami, FL, USA
11 days
Renewables & Environment
Sustainability
11 - 50 employees
Seed
Senior
Fourier

Managing Director, Fourier India

Hyderabad, Telangana, India

INR 8,000k-18,000k / year + Equity

1 month
Manufacturing
Mechanical or Industrial Engineering
11 - 50 employees
Series A
Director
Pacific Fusion

Automation Manufacturing Engineer

San Leandro, CA, USA

USD 153k-218k / year + Equity

1 month
Renewables & Environment
Sustainability
51 - 200 employees
Series A
Mid-Senior Level
Lightship

Staff Test Engineer

Broomfield, CO, USA
21 days
Automotive
Manufacturing
51 - 200 employees
Series B
Mid-Senior Level
Pacific Fusion

Mechanical Engineer, Infrastructure Engineering

San Leandro, CA, USA

USD 130k-190k / year + Equity

25 days
Renewables & Environment
Sustainability
51 - 200 employees
Series A
Senior
Sublime Systems

Pilot Process Engineer II

Somerville, MA, USA
1 month
Construction
51 - 200 employees
Mid-Senior Level
Pacific Fusion

Tooling and Rigging Engineer

San Leandro, CA, USA

USD 153k-218k / year + Equity

1 month
Renewables & Environment
Sustainability
51 - 200 employees
Series A
Mid-Senior Level
Fourier

Executive Assistant

United States

USD 75k-140k / year + Equity

1 month
Manufacturing
Mechanical or Industrial Engineering
11 - 50 employees
Series A
Senior
Quilt

Channel Account Executive - US West (HVAC Partner Manager)

United States

USD 150k-180k / year + Equity

1 month
Manufacturing
Mechanical or Industrial Engineering
51 - 200 employees
Series A
Mid-Senior Level
Exowatt

Lead Systems Engineer

Miami Beach, FL, USA
1 month
Renewables & Environment
Sustainability
11 - 50 employees
Seed
Senior
Fourier

Senior Seal Engineer

United States

USD 150k-210k / year + Equity

2 months
Manufacturing
Mechanical or Industrial Engineering
11 - 50 employees
Series A
Senior