Yes, we're open source!
Don't think a bank can do open source? We'd like to change your mind.
Open source technology has changed how we think of collaboration, community building and continuous innovation. That’s why we launched the Capital One Open Source Program Office in 2015 and have made our open source-first approach to software development part of our culture.
Open Source First
We develop and open source software designed to meet the demands of our highly regulated industry.
Contributions to 100+ Projects
Our technologists have made thousands of contributions to more than 100 projects, including 25 of our own.
Invested in the Community
We sponsor the Cloud Native Computing Foundation, Python, FINOS, Apache and more to help keep open source sustainable.
Events
Here, there and everywhere
Every year we sponsor and attend open source events like All Things Open, PyCon, KubeCon and more. Check out where we’ll be next.
Careers
Yes, we’re hiring!
Come help us change banking for good by using technology to serve our customers quicker and more easily than ever.
Featured Open Source Articles
Open Source
Pandas DataFrame: How to concatenate with Python examples
Concatenation of DataFrames and Series with Python in Pandas
Open Source
Bleeding Edge Dependency Testing with edgetest
Capital One is open sourcing edgetest for bleeding edge dependency testing