Hyunwoo Jo - Software Engineer at Marpple Corp

Hyunwoo Jo

Software Engineer at Marpple Corp

Gyeonggi, South Korea

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Summary

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Rockstar

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Top School

Hyunwoo Jo is a software engineer with 11 years of experience specializing in web development, currently building products at Marpple Corp after roles at NAVER and NAVER FINANCIAL. He combines practical backend implementation skills with a strong focus on developer ergonomics, evidenced by substantial contributions to a TypeScript functional programming library (FxTS) where he implemented many core utilities and refactored code to improve usability. Comfortable across startup and large-company environments, he brings experience from both consumer-facing platforms and financial services. Trained in electronic engineering at Dankook University, he blends systems thinking with a pragmatic approach to shipping reliable software. Colleagues describe him as detail-oriented and committed to making APIs and libraries more expressive and maintainable.

11 years of coding experience

5 years of employment as a software developer

공학 학사, 전자공학과, 공학 학사, 전자공학과 at Dankook University

English

Github Skills (11)

typescript10

javascript10

functional-programming10

typescripts10

lib10

typescript-types10

algorithms8

data-structures8

concurrency8

data-structure8

testing7

Programming languages (7)

TypeScriptCSSCJavaScriptGoHTMLPython

Github contributions (5)

marpple/FxTS

Sep 2021 - Nov 2022

A functional programming library for TypeScript/JavaScript

Role in this project:

Back-end Developer

Contributions:21 releases, 156 reviews, 238 commits in 1 year 1 month

Contributions summary:Hyunwoo implemented core functionality for a functional programming library for TypeScript/JavaScript. Their contributions included adding the `add` function, adding types for iteration, and adding the `range`, `reduce`, `pipe`, `delay`, `toArray`, `toAsync`, `map`, `concurrent`, `take`, `filter`, `append`, `chunk`, `compact`, `drop`, `concat`, `flat`, `flatMap`, `peek`, `prepend`, `reject`, `takeUntil`, `takeWhile`, `uniqBy`, `zipWithIndex`, `uniq`, `zip`, `isNil`, `isNumber`, `sortBy`, `average`, and `dropRight` functions to the library. They also added utility features, and refactored some of the code. The user appears to be focused on expanding the library's features and improving its utility for developers.

concurrencyfunctional-programmingjavascriptjavascript-typescriptfp-ts

ppeeou/awesome-stars

Aug 2023 - Mar 2025

Contributions:545 pushes, 1 branch in 1 year 7 months

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