Julien Nakache
CEO & Founder at Granted (formerly Medbill AI)
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJulien Nakache is a founder and CEO with 14 years of engineering and startup leadership experience, currently building Granted (formerly Medbill.ai) in New York after a long tenure as a Staff Software Engineer and tech lead at Oscar Health. He blends deep backend engineering chops—demonstrated by notable open-source contributions to projects like Graphene-SQLAlchemy and enhancements to the twitter-ruby gem—with product and business instincts honed through multiple founding roles. Julien’s background spans entrepreneurship, VC analysis, and technical exchange studies at Stanford, giving him a rare mix of strategic, technical, and operational fluency in healthtech and platform engineering. Colleagues would describe him as a pragmatic problem-solver who moves comfortably between shipping code that fixes N+1 queries and steering company strategy.
14 years of coding experience
10 years of employment as a software developer
Exchange Program Computer Science & AI, Exchange Program Computer Science & AI at Stanford UniversityMBA Exchange Program Entrepreneurship, MBA Exchange Program Entrepreneurship at Babson CollegeUndergrad / Prep School Mathematics & Economy, Undergrad / Prep School Mathematics & Economy at Stanislas College, ParisMS in Management Entrepreneurship & Technology, MS in Management Entrepreneurship & Technology at HEC Paris
English, French, Spanish
Stackoverflow
31reputation
93reached
0answers
1question
Github Skills (17)
python10
apidoc10
git-repository10
repos10
wpgraphql10
twitter-api10
ruby10
api10
sqlalchemy10
wordpress-graphql10
graphene10
graphql10
faraday9
file-handling9
testing8
Programming languages (17)
Github contributions (5)
graphql-python/graphene-sqlalchemy
Mar 2019 - Jun 2020
Graphene SQLAlchemy integration
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 releases, 30 commits, 48 PRs in 1 year 2 months
Contributions summary:Julien primarily contributed to the Graphene-SQLAlchemy integration library, focusing on enhancing its functionality and addressing identified issues. Their work included fixing example applications, implementing a mechanism to selectively override automatic field creations, and addressing a regression issue related to custom resolve functions. Moreover, the user made improvements to the batching implementation, including refactoring to support N+1 problem. They also released several versions of the library.
pythonsqlalchemyfastapigraphqlgraphene
sferik/twitter-ruby
Aug 2011 - Aug 2011
A Ruby interface to the Twitter API.
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits in 1 day
Contributions summary:Julien primarily focused on enhancing the `twitter-ruby` gem to support media uploads. They introduced the `update_with_media` functionality and added support for `StringIO` and `IO` streams for handling media, enabling flexibility when images are not on disk. They also fixed a typo in the `MEDIA_ENDPOINT` and made adjustments to improve API endpoint flexibility, demonstrating a strong understanding of the Twitter API and Ruby's IO capabilities. Furthermore, the commits include documentation updates relating to using streams.
apirubytwitter-clienttwitter-apitwitter
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.