Dan Loewenherz
Software Engineer at Star Path
Miami, Florida, United States
Summary
🤩
Rockstar🎓
Top SchoolDan Loewenherz is a seasoned product engineer and founder with 16 years of experience building and scaling early-stage web and mobile products, now serving as CTO in Austin. He repeatedly ships MVPs and production launches across Android, iOS, and web (notably TypeScript/React/Next.js and Python/Django), and has scaled backends serving millions daily while launching profitable products. His leadership spans founding multiple startups, growing engineering teams from one to dozens, and improving developer experience and CI at companies like Heap. A hands-on contributor to open source tooling—from a Python wrapper for the Amazon Product Advertising API to iCloud backup utilities—he blends pragmatic engineering, product instincts, and marketing savvy; his work has been featured by major outlets including TechCrunch and the New York Times. Unusually for a CTO, he pairs deep frontend and backend craftsmanship with fluency in Mandarin from extensive study abroad, giving him a global perspective on product and team dynamics.
16 years of coding experience
16 years of employment as a software developer
Summer Scholar Intensive Mandarin Immersion, Summer Scholar Intensive Mandarin Immersion at Princeton UniversityRansom Everglades SchoolVisiting Scholar Intensive Mandarin, Visiting Scholar Intensive Mandarin at Zhejiang University of TechnologyVisiting Scholar, coursework in Linguistics, Chinese History, Biology, Advanced Mandarin Chinese Language and Literature, Visiting Scholar, coursework in Linguistics, Chinese History, Biology, Advanced Mandarin Chinese Language and Literature at Peking UniversityBachelor of Arts - BA Applied Mathematics, Bachelor of Arts - BA Applied Mathematics at Yale University
Stackoverflow
11,039reputation
3.5mreached
114answers
33questions
xcode
top-5%
preprocessor
top-1%
swift
top-5%
git
top-5%
csv
top-5%
macros
top-1%
Github Skills (22)
git10
python10
apidoc10
macros10
refactor10
api10
preprocessor10
version-control10
refactoring10
argument-parsing9
xcode9
csv9
swift9
urllib9
git-stash6
Programming languages (26)
Github contributions (5)
lionheart/bottlenose
Jun 2010 - Feb 2020
A Python wrapper for the Amazon Product Advertising API.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:169 commits, 16 PRs, 84 pushes in 9 years 9 months
Contributions summary:Dan primarily contributed to the `bottlenose` repository by modifying the core API functionality and refining the codebase. This includes updating the API version, introducing new endpoints, and refactoring existing code, specifically around the `AmazonCall` and `Amazon` classes within the `api.py` file. The user also addressed minor issues such as updating webservice locations, and performed version number bumps.
amazon-product-advertising-apipythonamazon-apiamazon-product-advertisingbottlenose
hackappcom/iloot
Sep 2014 - Dec 2014
OpenSource tool for iCloud backup extraction
Role in this project:Back-end Developer
Back-end DeveloperContributions:27 commits, 1 comment in 2 months
Contributions summary:Dan primarily focused on improving the iloot tool for iCloud backup extraction. Their contributions involved refactoring the code for better readability and maintainability. This included renaming variables, improving code formatting, and updating the codebase with various pep8 changes, which indicates a focus on code quality and adherence to style guidelines. Furthermore, they implemented an argument parser and simplified URL creation. They also updated to use a third-party library for filesize formatting.
icloud
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