About us

At Weights & Biases our mission is to build the best tools for AI developers. Our co-founders built Figure Eight, and our tools are being used by cutting-edge machine learning teams including OpenAI, NVIDIA, and Co:here. We’re looking for passionate, driven people who love to learn and collaborate in an inclusive work environment.

Our start

Before Weights & Biases, founders Lukas Biewald and Chris Van Pelt had already ridden the start-up train together building Figure Eight. When pondering about their next project, Weights & Biases came to fruition during Lukas’ internship at OpenAI.

While working with some of the world’s most renowned machine learning researchers, Lukas realized the tools they were using were outdated and inefficient. To build better models, they needed better tools.

Launching a new company is hard, so to round out the team, Lukas and Chris pulled in Shawn Lewis — a long-time friend who also had a founder’s experience. Together, they used their combined knowledge, skills, and experiences to create tools that could support machine learning practitioners and move forward the state of the art of machine learning.

Our values


To make smart decisions, we need to be honest with each other and with ourselves. Honesty allows us to surface problems so we can tackle them together as a team, instead of avoiding them.


Machine learning is advancing fast. Best practices can easily become obsolete overnight. The key to thriving (not just surviving) in this industry is to never stop learning.


In a world of intense competition, having the confidence to move forward despite uncertainty is essential. Taking risks can be uncomfortable but staying complacent is rarely the better option.


As much as talent counts, effort counts twice. Having that ability to roll up your sleeves converts setbacks into stepping stones. In the long run, having grit is a core part of success.

Want to learn more about our purpose and values at Weights & Biases? Take a look at this article written by our CEO, Lukas.

Our leadership

Lukas Biewald

CEO and Cofounder

Chris Van Pelt

CISO and Cofounder

Shawn Lewis

CTO and Cofounder

Yan-David Erlich


Cameron Kinloch


Robin Bordoli


Mariah Nagy

Chief People Officer

Phil Gurbacki

VP of Product
Seann Gardiner

Seann Gardiner

VP, Business Development

Adrian Swanberg

VP of Engineering

Lavanya Shukla

Chief of Staff

Our team

Made up of 180 (and counting) talented, kind, and mission-driven individuals, our team is distributed all over the world. If you’re the owner of an inquisitive mind, a kind soul, sees challenges as opportunities, and are committed to going the extra mile — let’s talk.

Our opportunities

If you’d like to join our growing team at Weights & Biases, we’d love to hear from you. You’ll find our open roles below.

Our investors

We’re a Series C startup with over 250 million dollars in funding. We’re lucky to have the support of some of the most forward-thinking investors in the world, including Coatue, Felicis Venture, BOND, Insight Partners, Bloomberg Beta, NVIDIA, and more.

Our offices

Weights & Biases
Stresemannstraße 123
Berlin, BE 10963
U.S. Headquarters

Weights & Biases
400 Alabama St
San Francisco, CA 94110


Weights & Biases
Tokyo Square Garden
14F, 3 Chome-1-1 Kyobashi, Chuo
City, Tokyo 104-0031


Weights & Biases
10 York Rd
London, UK SE1 7ND