Joseph Kahn
Development Manager at Shopify
Old Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolJoseph Kahn is a development manager at Shopify with 13 years of experience building and leading teams in fin-tech and accounting products. He combines hands-on backend expertise in Python, databases and date/time parsing with people management—having progressed from developer to staff engineer and now manager. Joseph contributes to notable open-source projects like arrow and dateparser, where he improved timezone handling and test coverage, reflecting a focus on reliability and craftsmanship. Based in Toronto, he brings a pragmatic, data-informed approach rooted in a Computer Science specialist degree from the University of Toronto and early bioinformatics and analytics experience that sharpened his attention to edge cases.
13 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BSc), Computer Science Specialist, Bachelor of Science (BSc), Computer Science Specialist at University of Toronto
English, hebew
Github Skills (11)
date-parsing10
datetime10
zone10
timezone10
datetimes10
python10
testing10
pytest9
arrow-js9
arrows9
apache-arrow9
Programming languages (8)
Github contributions (5)
arrow-py/arrow
Aug 2016 - Sep 2019
🏹 Better dates & times for Python
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:5 commits, 2 PRs, 8 comments in 3 years 1 month
Contributions summary:Joseph's contributions primarily involve testing aspects of the `arrow-py/arrow` repository. They created and modified tests, specifically targeting iteration parameters and timestamp parsing. Their work includes adding test cases to ensure the code correctly handles limits and negative timestamps. Additionally, they addressed code style issues through linting.
datetimepythontimesarrowtimestamp
scrapinghub/dateparser
Nov 2014 - Feb 2015
python parser for human readable dates
Role in this project:Back-end Developer
Back-end DeveloperContributions:23 commits, 12 comments in 2 months
Contributions summary:Joseph primarily contributed to improving the functionality of the dateparser library. Their work included adding support for pytz timezones, which involved modifications to the `dateparser/timezones.py`, `tests/test_timezones.py` and `tests/test_date_parser.py` files. Further contributions focused on correcting timezone-related issues and updating the project's requirements, suggesting an active role in refining the core date parsing logic.
pythonpython-parserreadablehuman-readabledates
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