About Us

All across the world, from the azure pools of Turkey and Oman to the travertine terraces of Yellowstone, our planet quietly pulls carbon dioxide from the air and turns it to stone. For eons, Earth has relied on this process to balance its carbon cycle. What if it could be harnessed? What if we could do it faster, in larger quantities, and at a low enough cost to make it an effective tool in the fight against climate change?

At Heirloom, we are turning that into reality. We use the natural carbon capture properties of abundant minerals to pull CO2 from the air, and store it permanently underground. We come to work every day to slow climate change, and are united behind a single, common goal - to remove 1 billion tons of CO2 from the sky by 2035, and to not stop before we get there.

We bring together the precise recipe of science, technology, know-how, and strategy necessary to make low cost, high quality carbon removal a reality. If we’re successful, we will directly mitigate climate change, build a world we can proudly hand over to our children and grandchildren, and catalyze an industry that will rival the largest the world has ever seen. If you want to change the planet, come join us.

Our Commitment to Diversity, Equity, and Inclusion

As temperatures continue to rise, individuals from marginalized communities will face the harshest impacts of climate change. We believe wholeheartedly that building a diverse company is critical to Heirloom’s success. To accomplish this, we’ve put recruiting, hiring and retaining individuals from underrepresented groups at the top of our priority list.

We encourage you to apply if you identify as Black, Native Hawaiian or Pacific Islander, American Indian or Alaskan Native, Hispanic or Latino, LGBTQ+ – or with any other underrepresented group – even if you don’t tick all the boxes in the description below.

About the Role

The Engineering Technician will be a key member of our R&D fabrication team, supporting the development of our direct air capture technology through machining custom parts and building engineering prototypes. In this role, you’ll operate our manual and CNC machine tools to fabricate custom components based on engineering specifications, ensuring the quality and accuracy necessary for technology development. Beyond machining and fabrication, you’ll work closely with our mechanical engineers to build and iterate on prototypes, while also providing design feedback based on manufacturability. You will play a key role in our company’s technology development as well as the continuous improvement of our shop’s capabilities and infrastructure.

You will be responsible for

• Operate manual and CNC machine tools to fabricate precision components according to engineering drawings

• Work closely with mechanical engineers to support the construction and assembly of prototypes and equipment

• Review designs and drawings to provide feedback on manufacturability

• Inspect finished parts using metrology tools to ensure dimensional accuracy and adherence to specifications.

• Perform routine machine maintenance and maintain a clean and organized workspace

• Identify and implement improvements to shop processes, capabilities, and infrastructure

• Adhere to all safety standards and PPE requirements; maintain awareness of shop hazards and contribute to a safe working environment

What you will bring

• Proficient in operating manual machine tools with strong understanding of machining technology and processes

• Familiarity with operating CNC machine tools

• Ability to read and interpret engineering drawings

• Strong attention to detail with the ability to produce high-quality parts that meet tight engineering tolerances

• Understanding of mechanical systems and ability to use hand tools to build prototypes and equipment

• Ability to work independently and as part of a team

• Computer proficiency including navigating work management platforms (Jira) and working within GSuite

• Physical ability to lift heavy objects and perform physically demanding tasks

You will stand out if you have

• Experience designing, modifying, and evaluating parts in CAD software

• Experience using CAM software to program CNC machines

• Experience with rigging and forklift operation

• Welding experience

• Experience with low voltage wiring

This will be a temporary job with the opportunity to become permanent.

Our Principles

Radical Honesty means we are open, transparent, and inclusive in everything we do. We aren't scared to challenge each other, but bring clear motives and our best intentions when we do.

Persistent Optimism means we carry an infinite amount of optimistic energy with us on our journey, constantly chipping away at what may seem insurmountable.

Maximize our learning rate means we're always in discovery mode. Compounding knowledge is our key to victory - we continuously hone our crafts, seek the fastest paths to new learning, and are quick to absorb new knowledge.

Why you should join Heirloom

• We are solving the engineering problem of our generation. Climate change is an existential threat, and we need as many of the world’s motivated minds as possible to help. There is no greater challenge or opportunity than fighting climate change.

• We have done this before. We’re engineers, scientists, and concerned humans from a variety of backgrounds and experiences who are pooling our knowledge and skills to collectively build a more equitable, prosperous future for all.

• We are a united, resilient, and optimistic bunch. We are all here for the same reason - to slow climate change. We recognize the magnitude of the challenge ahead of us, and believe we can solve it. We can see a hopeful future where we eventually reverse climate change. It won’t be easy, but we won’t quit.

• We are backed by the best climate partners in the world. We’re well funded by investors from Breakthrough Energy Ventures, Ahren Innovation Capital, Carbon Direct, Microsoft, Lowercarbon Capital, ARPA-e and the National Science Foundation. Our early customers include Stripe, Shopify, and Klarna, and we’re building durable partnerships that enable us to tackle this decades-long problem.

Perks and Benefits

• Robust health coverage. Excellent health, dental and vision insurance covered up to 100% by Heirloom. FSA option.

• Generous parental leave. 16 weeks paid leave for all Heirloom employees, regardless of primary/secondary caregiver status.

• Generous stock options.

• Flexible time off. Unlimited PTO for exempt (salaried) employees & 120 hours for full time non-exempt (hourly) employees.

• 401(k).

• Stay healthy. Monthly health and wellness reimbursement.

• Learn on the job. Robust annual education and conference budget, including airfare and hotel costs.