Kristofer Koishigawa
Software Engineer at freeCodeCamp
Hawaii, United States
Summary
🤩
Rockstar🎓
Top SchoolKristofer Koishigawa is a software engineer with a decade of experience blending front-end craftsmanship and curriculum-driven product work at freeCodeCamp. He led migrations and performance improvements that cut server costs and boosted Lighthouse scores, and built a serverless search indexer that saved roughly 100 developer hours per year while enabling multilingual Algolia search across nine locales. A former ESL teacher with a BA in English, he brings a storyteller’s eye for clarity to developer-facing documentation, technical guides, and educational curriculum design. His open-source contributions focus on improving UI/UX, accessibility, and polished presentation—evident in work on freeCodeCamp’s codebase and learning game scripts. Based in Hawaii, he pairs practical React and CSS skills with testing and localization expertise to help learners worldwide access high-quality web development resources.
10 years of coding experience
Associate of Arts (A.A.), Associate of Arts (A.A.) at Leeward Community CollegeBachelor of Arts (BA), English Language and Literature, General, Bachelor of Arts (BA), English Language and Literature, General at University of Hawaii at Manoa
English, Korean
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (19)
javascript10
gameplay10
css10
videogames10
renpy10
front-end-development10
html10
react10
scripting9
learnr9
coder9
autocode9
self-organization8
python8
searchbar8
Programming languages (15)
Github contributions (5)
freeCodeCamp/boilerplate-project-urlshortener
Jul 2020 - Oct 2020
A boilerplate for a freeCodeCamp project.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:3 reviews, 18 commits, 11 PRs in 2 months
Contributions summary:Kristofer primarily focused on refining the user interface and presentation layer of the URL shortener project. Their commits demonstrate changes to the HTML structure and CSS styling of the landing page. They refactored the HTML, removed unnecessary elements, added a new favicon, and modified the CSS to enhance the overall look and feel of the application.
reactboilerplatetinyurlurl-shortenerbitly
freeCodeCamp/freeCodeCamp
Nov 2017 - Oct 2022
freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.
Role in this project:Front-end Developer
Front-end DeveloperContributions:344 reviews, 226 commits, 581 PRs in 4 years 11 months
Contributions summary:Kristofer primarily contributed to the front-end of the freeCodeCamp.org project. Their work involved fixing and updating UI components, specifically related to the heatmap legend text and the motivational quote easter egg. They also addressed styling issues and improved code readability through modifications to CSS and React components. Furthermore, they were involved in enhancing the search bar's functionality and accessibility, with the ability to handle the up/down keys and integrate the search bar with the news index.
mathcurriculumreactlearn-to-code-for-freecss
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