Kai Cataldo

New York, New York, United States

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Summary

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Rockstar

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Top School

Kai Cataldo is a web developer in New York with 11 years of experience blending front-end design sensibility and deep full-stack engineering to improve JavaScript tooling. A classically trained trumpet player and Curtis Institute graduate, he brings a musician’s attention to structure and nuance to complex parser and linting work. His open-source contributions to flagship projects like eslint, babel, and typescript-eslint demonstrate expertise in parsing, JSX/TSX support, and keeping large toolchains compatible with evolving ECMAScript features. He focuses on improving developer experience through robust tests, refactors, and dependency upgrades, often tackling subtle parsing and comment-attachment bugs. Passionate about using technology, education, and the arts for positive change, he creates interfaces and systems that prioritize meaningful user experiences. An uncommon combination of conservatory training and sustained OSS impact makes him adept at turning intricate language problems into practical developer tools.

11 years of coding experience

Bachelor of Music, Trumpet Performance, Bachelor of Music, Trumpet Performance at Curtis Institute of Music

The University of Maryland, College Park

Japanese, English

Github Skills (32)

babel610

parserator10

javascript10

parser10

website-development10

testing10

typescript10

s610

eslint10

rule-engine10

parsing10

parse10

babel-core10

typescript-types10

babeljs10

Programming languages (17)

MDXC#CSSCRustHTMLPerl 6Nunjucks

Github contributions (5)

eslint/eslint

Nov 2015 - Aug 2020

Find and fix problems in your JavaScript code.

Role in this project:

Full-stack Developer

Contributions:1 release, 24 reviews, 140 commits in 4 years 9 months

Contributions summary:Kai's contributions primarily involve enhancing the `eslint/eslint` repository with new features and bug fixes related to the `curly` and `object-shorthand` rules. The user added support for `for-in`, `for-of` statements and improved code style and flexibility by implementing a new option to the `no-empty` rule and added new features to `no-useless-rename`. The user's work involved modifying existing rules and adding new tests to validate the code changes across different JavaScript language features.

javascripteslintecmascriptstatic-code-analysislinter

eslint/js

Mar 2016 - Aug 2020

Monorepo for the JS language tools.

Role in this project:

Full-stack Developer

Contributions:20 commits, 36 PRs, 42 pushes in 4 years 5 months

Contributions summary:Kai primarily addressed issues related to comment attachment and JSX syntax within the JavaScript code. Their contributions involved fixing bugs related to leading and trailing comments, ensuring they were correctly associated with the appropriate nodes in the Abstract Syntax Tree (AST). They also implemented fixes for JSX parsing, disallowing namespace objects, and updating dependencies, suggesting a focus on improving the accuracy and functionality of the JavaScript parser.

jslanguagetoolmonorepo

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