Our Values

We live and breathe them

  • Rigor

    We lead with science and data.
  • Diversity

    Our Mammoth strength comes from the diversity of nature and of our people.
  • Speed

    We are efficient in our work and are agile in our decisions.
  • Creativity

    Discovery is in our RNA.
  • Passion

    We solve meaningful and mammoth-sized problems.
  • Communication/Transparency

    We are eager to involve, educate, and empower others.

Career Opportunities

We would like to invite you to join our team and help contribute to developing world-class CRISPR tools and applying them to real world challenges.

Employee Perks

  • Full Benefits

    We cover 100% of employee benefits for medical, dental, vision and life insurance.

  • 401(k)

    Our 401(k) plan includes company matching of employee contributions.

  • Unlimited Vacation

    We have an unlimited vacation policy that allows you to get the rest and relaxation you need to refresh.

  • Transportation Subsidy

    We provide a public transportation commuter subsidy.

  • Onsite Amenities

    In our brand new facility, we offer several free amenities including snacks and drinks, breakfast, lunch and dinner, a barista and a gym with free membership.

  • Happy Hours

    We encourage our team to unwind and get to know each other through weekly company happy hours.

Working at Mammoth

From the Team

“Discovering tools that can help save lives is something awesome to be a part of!”

Molly Jorgensen

Office Manager

“Everyone on the team is really smart and nice, and the core CRISPR tech is super cool!”

Daniel Drzal

Bioengineering Associate

“Endless learning opportunities with incredibly intelligent coworkers.”

Bridget McKay

Research Associate

“Supportive lab members, direct application of undergrad work, and free lunch.”

Putra Hartono

Senior Research Associate

“Working with an incredible team and using my brain every day!”

Clare Fasching

Senior Scientist

Follow us on Twitter and Instagram

You can find us in the press


State-of-the-art facilities

With all of the new lab space, views and amenities at our new site, we’re more excited than ever to dive into building CRISPR-based tools. In the new space, it will be much easier for us to flex our creative muscles and grow as a company.

We are located in the heart of Birthplace of Biotech, South San Francisco on the Verily campus. Our brand new labs and facility are easy accessible. We are a 10 minute walk from Caltrain, a 10 min shuttle ride from the South San Francisco ferry terminal and just off highway 101 by car.