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Showing 33 jobs
Mainspring Energy

Senior Staff Mechanical Engineer - Structures & Alignment

Menlo Park, CA, USA

USD 170k-209k / year + Equity

1 day
Senior
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Production
Energy Services
Generators
Natural Resources
Oil and Gas
Oil & Gas
Renewable Energy Power Generation
Sustainability
Technology
OpenAI

Actuator Design Engineer

San Francisco, CA, USA

USD 342k-445k / year + Equity

6 days
Senior
Agentic AI
Artificial Intelligence (AI)
Enterprise Software
Foundational AI
Generative AI
Machine Learning
Natural Language Processing
SaaS
Mainspring Energy

Senior Mechanical Design Engineer - Electromechanical

Menlo Park, CA, USA

USD 133k-156k / year + Equity

7 days
Senior
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Production
Energy Services
Generators
Natural Resources
Oil and Gas
Oil & Gas
Renewable Energy Power Generation
Sustainability
Technology
Rocket Lab

Senior Systems Engineer I/II

Long Beach, CA, USA

USD 132k-176k / year + Equity

11 days
Senior
Aerospace
Aerospace & Defense
Automotive
Aviation and Aerospace Component Manufacturing
Biotechnology
Business And Industrial
Business/Productivity Software
Cleantech
Consumer Electronics
Defense & Space
Electronics
Engines
Guided Missiles & Space Vehicles & Parts
Hardware
Industrial Manufacturing
Manufacturing
Manufacturing & Industrial
Satellite
Satellites
Science and Engineering
Software
Space Travel
Transportation
Wind Power
QuantumScape

PMTS, Mechanical Design Engineer

United States; California, USA

USD 160,700-217k / year + Equity

13 days
Senior
Automotive
Batteries
Battery
Electrical & Electronic Components
Electrical Equipment
Electric Vehicle
Energy
Energy Storage
Equipment & Supplies
Hardware
Manufacturing
Manufacturing & Industrial
Miscellaneous Electrical Machinery
Renewable Energy
Renewable Energy Equipment Manufacturing
Road
Sustainability
Transportation
Rocket Lab

Thermal Engineering Intern Fall 2026

Long Beach, CA, USA

USD 28-28 / hour + Equity

14 days
Internship
Aerospace
Aerospace & Defense
Automotive
Aviation and Aerospace Component Manufacturing
Biotechnology
Business And Industrial
Business/Productivity Software
Cleantech
Consumer Electronics
Defense & Space
Electronics
Engines
Guided Missiles & Space Vehicles & Parts
Hardware
Industrial Manufacturing
Manufacturing
Manufacturing & Industrial
Satellite
Satellites
Science and Engineering
Software
Space Travel
Transportation
Wind Power
Commonwealth Fusion Systems

Senior Manager, Manufacturing Engineering

Devens, MA, USA

USD 150k-225k / year + Equity

Today
Series B
Senior
Clean Energy
Electrical Distribution
Energy
Environmental Engineering
Natural Resources
Renewable Energy
Science
Science and Engineering
Solar
Sustainability
DoorDash

Mechanical Design Engineer — UAV Wire Harness

San Francisco, CA, USA

USD 109,500-238k / year + Equity

19 days
Mid-Senior Level
Apps
Consumer
Delivery
E-Commerce
E-Commerce Platforms
Food Delivery
Logistics
Marketplace
Online Portals
Commonwealth Fusion Systems

Manufacturing Engineer

Devens, MA, USA

USD 90k-145k / year + Equity

4 days
Series B
Mid-Senior Level
Clean Energy
Electrical Distribution
Energy
Environmental Engineering
Natural Resources
Renewable Energy
Science
Science and Engineering
Solar
Sustainability
Eight Sleep

Manager, Mechanical Engineering

San Francisco, CA, USA

USD 225k-300k / year + Equity

1 month
Director
Consumer Electronics
Consumer Products, Hardware
Design
Ecommerce
Electronics (B2C)
Hardware
Health Care
Health & Fitness
HealthTech
Home Furnishings
Innovation Management
Internet of Things
Mobile App
Product Design
Professional Services
Specialty Retail
Technology
Wellness
Eight Sleep

Director of Mechanical Engineering

San Francisco, CA, USA

USD 225k-300k / year + Equity

1 month
Director
Consumer Electronics
Consumer Products, Hardware
Design
Ecommerce
Electronics (B2C)
Hardware
Health Care
Health & Fitness
HealthTech
Home Furnishings
Innovation Management
Internet of Things
Mobile App
Product Design
Professional Services
Specialty Retail
Technology
Wellness
Rocket Lab

Director, Space Vehicle Design

Long Beach, CA, USA

USD 195k-240k / year + Equity

1 month
Director
Aviation & Aerospace
Space
Varda Space Industries

Mechanisms Engineer - Payloads

El Segundo, CA, USA

USD 104k-145k / year + Equity

1 month
Series C+
Mid-Senior Level
Defense & Space
Government and Military
Commonwealth Fusion Systems

Staff Systems Engineer

Milpitas, CA, USA

USD 130k-200k / year + Equity

1 month
Senior
Clean Energy
Energy
Environmental Engineering
Natural Resources
Renewable Energy
Research
Science
Science and Engineering
Solar
Sustainability
Varda Space Industries

Senior Mechanisms Engineer - Payloads

El Segundo, CA, USA

USD 133k-170k / year + Equity

2 months
Series C+
Senior
Defense & Space
Government and Military
Commonwealth Fusion Systems

Mechanical Engineer - Cable Magnets

Devens, MA, USA

USD 90k-145k / year + Equity

2 months
Mid-Senior Level
Clean Energy
Energy
Environmental Engineering
Natural Resources
Renewable Energy
Research
Science
Science and Engineering
Solar
Sustainability
Commonwealth Fusion Systems

Principal Mechanical Engineer

Milpitas, CA, USA

USD 150k-225k / year + Equity

2 months
Senior
Clean Energy
Energy
Environmental Engineering
Natural Resources
Renewable Energy
Research
Science
Science and Engineering
Solar
Sustainability
Vinci4D.ai

Principal Thermal-Mechanical Engineer (Germany)

Munich, Germany

EUR 1-2 / year

2 months
Series A
CXO
Artificial Intelligence (AI)
Data & Analytics
Electronics
Hardware
IT Consulting and Outsourcing
Other Commercial Services
Science and Engineering
Software
Technology
Vinci4D.ai

Principal Thermal-Mechanical Engineer (Singapore)

Singapore

SGD 1-2 / month

2 months
Series A
Director
Artificial Intelligence (AI)
Data & Analytics
Electronics
Hardware
IT Consulting and Outsourcing
Other Commercial Services
Science and Engineering
Software
Technology
Velo3D

Senior Mechanical Engineer

Fremont, CA, USA

USD 145k-173k / year + Equity

2 months
Senior
3D Printing
3D Technology
Additive Manufacturing
Aerospace
Business And Industrial
Defense
Developer Tools
Energy
Engineering
Enterprise Software
Hardware
Machinery (B2B)
Machinery Manufacturing
Manufacturing
Manufacturing
Mechanical or Industrial Engineering
NEC
Other Hardware
Platform
Printing
Propulsion
Software
Special Industry Machinery
Technology
Turbomachinery