Climate-Tech Mechanical Engineering Intern (CO2 Capture)

Heirloom; Brisbane (CA); On-site; USD 41,000 - 47,000; Full time

Benefits offered by this job

Health, dental and vision insurance (6

16 weeks paid parental leave

Stock options

Unlimited PTO

401(k)

Monthly health and wellness allowance

Education and conference budget

Job summary

Heirloom is seeking a Mechanical Engineering Intern to join the Mechanical Team for a 10–12 week Fall/Winter program. You will support the design, build, and deployment of next‑generation carbon removal systems, gaining hands‑on ownership with hardware at a climate tech startup.

You will develop CAD models, fabricate drawings, prototype, test, and analyze components, while collaborating with process, electrical, and controls teams to advance CO₂ capture hardware.

Qualifications

• Pursuing a BS or MS in Mechanical Engineering (or related field) or have recently graduated.
• Hands-on experience building things (lab work, shop experience, project teams, internships, personal projects)
• Strong understanding of engineering fundamentals (statics, dynamics, kinematics, thermodynamics, fluid mechanics)
• 3D CAD experience
• Engineering testing methodology; ability to design experiments and collect data

Responsibilities

• Support mechanical design of subsystems and components (structures, mechanisms, machine design)
• Develop CAD models and 2D drawings for fabrication
• Assist with prototyping, assembly, and field testing of hardware
• Conduct engineering analyses (tolerance stacks, FEA, etc.)
• Support root cause investigations and design improvements on equipment
• Help document designs, test results, and lessons learned
• Collaborate cross‑functionally with process, electrical, controls, and operations teams

Skills

Hands-on experience

3D CAD

Engineering fundamentals

Prototype testing

Documentation

Team collaboration

Education

BS or MS in Mechanical Engineering

Tools

CAD software

Job description

Heirloom is seeking a Mechanical Engineering Intern to join the Mechanical Team for a 10–12 week Fall/Winter program. You will support the design, build, and deployment of next‑generation carbon removal systems, gaining hands‑on ownership with hardware at a climate tech startup.

You will develop CAD models, fabricate drawings, prototype, test, and analyze components, while collaborating with process, electrical, and controls teams to advance CO₂ capture hardware.