Jad Chaar
Software Engineer at Amazon
Irvine, California, United States
Summary
🤩
RockstarJad Chaar is a software engineer with 11 years of experience based in Irvine, California, currently contributing at Amazon and maintaining work on the popular arrow-py datetime library. He specializes in backend development and test automation, demonstrated by leading the sec-edgar-downloader Python package to robust, well-documented releases with chunked downloads, rate limiting, and test coverage. His contributions to arrow improved core date/time behavior (is_between and humanize), showing attention to edge cases and library usability. Comfortable shipping production-grade tooling and open-source projects, he blends practical engineering with maintainability and developer experience. An understated strength is his focus on measurable reliability—tests and documentation are first-class citizens in his projects.
11 years of coding experience
Stackoverflow
891reputation
64kreached
6answers
0questions
checkbox
top-5%
Github Skills (17)
datetime10
pytest10
python10
lxml10
xml-parsing10
http-request10
checkbox9
beautifulsoup9
automated-tests9
documentation8
intervals6
swift6
swiftui6
continuous-integration6
ios6
Programming languages (14)
Github contributions (5)
arrow-py/arrow
Apr 2019 - May 2022
🏹 Better dates & times for Python
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:14 releases, 217 reviews, 284 commits in 3 years
Contributions summary:Jad primarily contributed to the implementation and testing of the `is_between` functionality. They wrote unit tests for the new feature, added documentation, and refactored the code for readability. Further work involved improving the humanize behavior for near-zero durations and updating README links and contributing information. Additional commits included deprecating support for Python 3.4 and adding badges to the README and setup.py.
pythonarrowdatetimetimestamp
jadchaar/sec-edgar-downloader
Dec 2018 - Jan 2022
📈 Download filings from the SEC EDGAR database using Python
Role in this project:Back-end Developer
Back-end DeveloperContributions:25 releases, 12 reviews, 182 commits in 3 years 1 month
Contributions summary:Jad was the primary contributor to the `sec-edgar-downloader` project, demonstrating a strong focus on developing a Python package for downloading SEC filings. Their contributions included implementing the core logic for retrieving and saving filings, adding support for various filing types, and improving the download process through chunking and rate-limiting. Furthermore, they established test coverage and introduced documentation, demonstrating the development of a robust, user-friendly, and maintainable codebase.
databasepythonedgarsec-edgarstocks
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