Hadley Callaway
Chief Of Staff at Sazabi
San Francisco, California, United States
Summary
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Top SchoolHadley Callaway is a product-focused engineering leader and Chief of Staff with eight years of experience building secure, high-impact systems across startups and large tech companies. She has led teams at Brex to deliver banking infrastructure and vendor payments, helped dismantle phishing at Doppel with ML-driven detection, and contributed to Microsoft and NIH projects integrating developer tooling and GitHub enterprise workflows. A former early hire at fast-growing AI-native observability startup Sazabi, she blends go-to-market and ops experience with hands-on engineering fluency. Based in San Francisco and trained in computer science at Columbia with an MBA from Harvard Business School, she moves fluidly between technical execution and strategic product decisions. Notably, she has a track record of onboarding customers at scale (helping Brex absorb thousands of former SVB customers) and personally recruiting engineering talent while shipping production ML systems.
7 years of coding experience
2 years of employment as a software developer
Groton SchoolBachelor's degree Computer Science, Bachelor's degree Computer Science at Columbia UniversityMaster of Business Administration - MBA, Master of Business Administration - MBA at Harvard Business School
Stackoverflow
11reputation
1kreached
0answers
1question
Github Skills (7)
plaid6
location4
flutter2
react-native2
messaging2
android2
dart2
Programming languages (5)
Github contributions (5)
WAtCH-capstone/capstone
Aug 2018 - Jul 2020
Now or Later: a mobile messaging app which enables users to send and receive messages based on time or location.
Contributions:55 PRs, 46 pushes, 48 branches in 2 years
react-nativedartreceive-messagesandroidmessaging-app
ComitiesCandescent/grace-shopper
Jul 2018 - Sep 2018
Contributions:63 commits, 25 PRs, 25 pushes in 2 months
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