Jared Kantrowitz

Managing Partner at The Witzend Group

New York City Metropolitan Area United States
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Summary

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Rockstar
Jared Kantrowitz is a Managing Partner based in the New York City metro area with a decade of software engineering experience and strong hands-on backend skills. He blends leadership of The Witzend Group with active open-source contributions—most notably meaningful enhancements to the widely used node-fetch library, where he improved request body handling, error messaging, and modernized code patterns. Jared is comfortable moving between strategic business responsibilities and technical problem-solving, refactoring legacy code and removing dependencies to improve reliability. Colleagues can expect a pragmatic engineer who values clean APIs, robust error handling, and small but impactful improvements that scale across projects.
code10 years of coding experience
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Stats
51reputation
2kreached
3answers
0questions
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Github Skills (10)

http-client10
javascript10
nodejs10
es6-promise10
fetch-api10
testing9
chai9
datatables6
jquery6
intellij-idea6

Programming languages (10)

TypeScriptC#C++CoffeeScriptCSSCSCSSJavaScript

Github contributions (5)

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node-fetch/node-fetch

Jun 2017 - Sep 2018

A light-weight module that brings the Fetch API to Node.js
Role in this project:
userBack-end Developer
Contributions:7 commits, 11 PRs, 3 pushes in 1 year 2 months
Contributions summary:Jared implemented several enhancements and bug fixes related to the core functionality of `node-fetch`. They added support for URLSearchParams as a request body, improving the flexibility of the library. The user also addressed issues related to error handling, specifically wrapping JSON.parse errors and providing better error messages. Furthermore, they refactored the code, replacing deprecated `new Buffer` calls and removing an unnecessary dependency.
apilight-weightlightnode-jshttp-client
node-sc2/core

Jan 2019 - Dec 2020

A lightweight node.js framework to facilitate writing agents (or 'bots') for Starcraft II in JavaScript.
Contributions:27 commits, 3 PRs, 51 pushes in 1 year 11 months
starcraftminecraftstarcraft-iijs-frameworknode-js
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Jared Kantrowitz - Managing Partner at The Witzend Group