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Do More 
with Your Data

Stemma is on a mission to make data within organizations
more accessible.

By bridging the gap between data producers and data consumers, we enable organizations to gain total trust in their data.

Funding AnnouncemenT

Proudly Funded by Sequoia

We are delighted to share the news that Sequoia is backing Stemma.

By investing in our vision, Sequoia is helping Stemma to solve even more of the world’s data problems and to empower organizations by enabling them to gain total trust in their data.

Read more aAbout our partnership with Sequoia
March 2018
Amundsen is born at Lyft
An MVP is shown to a group of five data scientists at Lyft.
October 2018
Amundsen is rapidly adopted by users at Lyft
From 5 to 200 weekly users, within just a month of launch.
October 2019
Amundsen is made open-source
ING, Square and many others become early users and contributors. Amundsen reaches 750 weekly active users at Lyft.
August 2020
Amundsen joins the Linux Foundation
Amundsen becomes a part of the Linux Foundation.
October 2020
Stemma is founded
Mark and Dorian found Stemma, to enable organizations and users to gain total trust in their data.
June 2021
Stemma's managed data catalog launched
Amundsen has a community of 1.7k+ and is used by 35+ companies.

Stemma’s Story

Stemma was born out of data problems that our co-founders, Mark and Dorian, battled with in their previous jobs.

At Lyft, Mark saw data users consistently wasting 25-30% of their time understanding what data exists, what can be trusted and how to use it. Not finding an existing solution to the problem, Mark, with a talented team of engineers, created Amundsen. Amundsen was a blowout success at Lyft, used by 80% of data analysts, data scientists and data engineers every week.

Dorian, previously at Heap, saw Heap's customers struggle with the same problem of lack of trust in data. He started contributing to Amundsen shortly after it was open-sourced and is a committer on the project.

Today, Amundsen is the leading open-source data catalog. Mark and Dorian created Stemma in 2020 to bring the power of Amundsen to every organization. By bridging the gap between data producers and data consumers, Stemma enables organizations to gain total trust in their data.

Dedicated to Open Source

Stemma is rooted in open-source. Mark, Stemma’s co-founder and CEO, is the co-creator of Amundsen: the leading open-source data catalog, with the largest community and the most integrations.

Stemma's engineers are committers and contributors to Amundsen.

Help Solve the World’s Data Problems

Be a part of solving the biggest problems in data, through the power of open-source


Current Openings

Full time - Remote
Generalist SWE
We're looking for curious engineers who are excited to rapidly iterate on new ideas with customers and build a product from the ground up.
Apply for This Job

Meet the Team

Co-founder, CEO


Mark is the co-creator of Amundsen. He was previously a Product Manager at Lyft and a Spark developer at Cloudera. In his spare time, Mark likes to dance and spend time outdoors.
Co-founder, CTO


Dorian was an early engineer at Heap, where he spent 6 years and ended up leading the engineering team. He’s a committer on the Amundsen project, and spends his time slow cooking meats, lifting weights and doting on his cat.
Founding Engineer


Verdan was previously a Chapter Lead Software Engineer at ING, and an Engineering Lead at edX. Verdan is a committer on the Amundsen project, eats food as a hobby, likes traveling with his wife, and loves mountains.
Founding Engineer


Grant was previously the founder of Tree Schema and has experience building data products in finance and healthcare startups. He enjoys baking anything with chocolate, climbing and hiking in the Appalachians with his dog.
Founding Engineer


Boyan’s last adventure was a co-founding stunt attacking the metasearch model in real estate through data science. He is able to find joy in the act of building anywhere in the tech stack - from ops and data engineering to user interfaces and mobile applications. In his free time, one can often bump into him at technical community events or education initiatives.
Founding Engineer


JC has over 15 years of experience in software engineering, and has built everything from relational databases to dns servers. A passionate educator, he has taught courses in data-structures and algorithms, and relational databases at the City University of New York. When not in front of the computer, he is most likely looking at birds.
Founding Engineer


Formerly an Engineering Lead at Civis Analytics, John has worked in a variety of industries and roles in the data space. John enjoys cooking, foreign languages and biking around Chicago.
Founding Engineer


Andrew has built software and run teams at companies big (Amazon, Microsoft, IBM) and small (Looker, Groupon, Boom Supersonic). Most recently he created Runbooks, a SaaS product for small businesses to manage operations. Outside of work, you'll either find him in the kitchen cooking french cuisine, or building huge structures in heavily modded Minecraft worlds.
Founding Engineer


Merilin is seasoned in the startup world, having previously worked as a Software Engineer at a tech company that sought to bring the real estate world into the AI century. In addition, she has been a teaching assistant at Sofia university, where she taught Object-oriented programming and Data structures. In her free time, she likes to paint, bake cookies and chill with her cat.
Founding Engineer


Petar is in his final year as a Computer science student and has experience in the real estate sector. Outside of programming, he enjoys travelling with his girlfriend (especially to Spain), playing board games with friends, and playing volleyball & basketball. He’s a firm believer that everything tastes better when you cook it yourself.