Julien Nakache
CEO Founder at Granted (formerly Medbill AI)
New York, New York, United States
Summary
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Rockstar🎓
Top SchoolJulien Nakache is a seasoned software leader and founder based in New York with 14 years of experience bridging hands-on backend engineering and startup leadership. As a long-tenured Staff Software Engineer at Oscar Health and now CEO-Founder of Granted (formerly Medbill AI), he pairs product-facing entrepreneurship with deep system design. He is an active open-source maintainer—known for graphene-sqlalchemy and the graphql-mock-factory—and has tackled practical GraphQL challenges such as N+1 batching and custom resolver regressions. Julien’s background combines an HEC management degree and exchange studies at Stanford/Babson with early VC and nonprofit founding experience, giving him an uncommon mix of business strategy and low-level engineering craft.
14 years of coding experience
10 years of employment as a software developer
HEC School of Management
English, French, Spanish
Stackoverflow
31reputation
93reached
0answers
1question
Github Skills (17)
api-doc10
wp-graphql10
python10
git-repository10
repos10
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
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