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
Heirloom’s Uno WILD project is transforming an existing production site into our next-generation technology-development hub. The build includes demolishing legacy equipment, upgrading plant utilities, and installing a first-of-its-kind calciner that will advance our direct-air-capture technology. As the on-site Construction Lead, you’ll steer the project from early groundworks through commissioning—keeping schedules tight, budgets intact, safety uncompromised, and quality uncompromising. If you thrive on juggling RFIs, inspections, and contractor coordination, you’ll be at the heart of one of climate tech’s most exciting industrial retrofits. After construction, you’ll shift into a Technical Program Manager role, using field insights to refine and scale Heirloom’s technology for future sites. In short, you’ll break ground and then break new ground, accelerating the race to remove CO₂ at scale.

About You
You bring 3 + years of on-site construction-management experience—ideally on projects with structural, civil, and MEP complexity. You know how to marshal trades, handle RFIs, manage budgets, enforce quality, and keep critical paths moving under dynamic, real-world conditions. Whether coordinating a utility shutdown for tie-ins or pivoting when a last-minute design change hits, you stay calm, collaborative, and solutions-oriented. You’re excited by the prospect of applying this hands-on construction knowledge to broader program management—looking forward to reviewing test plans, ensuring equipment commissioning runs smoothly, and providing real-world feedback to drive future design improvements. You thrive in high-stakes settings where collaboration and adaptability are crtical, and you’re ready to grow into a technical program management role that influences Heirloom’s global scale-up. Above all, you’re determined to be on the front lines of climate tech, turning bold ideas into on-the-ground reality—and then refining them for the next big build.

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.