Christoph Nakazawa
Chief Executive Officer at Nakazawa Tech KK
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolChristoph Nakazawa is a CEO and veteran software leader with 18 years of experience building developer tools, games, and large-scale frontend infrastructure from Tokyo. After a decade at Facebook where he led JavaScript Infrastructure and React Native teams, he helped create industry-standard tools such as Jest, Metro, and Yarn and contributed to React, Relay and Flow. At Stripe he sped up frontend tooling dramatically—building a new JS bundler that cut dev build times by 50x—and led APAC payment method integrations including Japan-specific Konbini payments. Today he runs Nakazawa Tech, leading a multidisciplinary team shipping the narrative-driven game Athena Crisis, while advising engineering teams on leadership and scaling. Known for deep hands-on contributions across open source—from codemods and AST tools to mobile and build systems—he blends product-driven engineering with operational rigor. Originally from Austria and now based in Chiyoda, he brings an uncommon mix of game design sensibility and large-company infrastructure experience to startups and platforms.
17 years of coding experience
16 years of employment as a software developer
BSc, Software Development and Business Administration, BSc, Software Development and Business Administration at Technische Universität GrazBHAK/BHAS Judenburg
Github Skills (80)
dependency-management10
parserator10
parser10
mobile-development10
flow-control10
package-management10
abstract-syntax-tree10
testing10
test-framework10
package-manager-tool10
relayer10
bson10
build-automation10
relay10
code-optimization10
Programming languages (22)
Github contributions (5)
cpojer/js-codemod
Mar 2015 - Nov 2017
Codemod scripts to transform code to next generation JS
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:83 commits, 85 PRs, 150 pushes in 2 years 8 months
Contributions summary:Christoph contributed to the `js-codemod` repository by implementing various codemod scripts. They developed a `use-strict` codemod, an arrow-function transformation, and a codemod to insert super calls in classes. Furthermore, they updated the code to the new `jscodeshift` API and added a codemod to handle arguments in arrow functions. The user also refactored the code to eliminate merge and copyProperties methods, further expanding the functionality of the codemod scripts.
next-generationcodemodtransformjavascripttricks
jestjs/jest
Aug 2015 - Jun 2021
Delightful JavaScript Testing.
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:17 reviews, 829 commits, 2502 PRs in 5 years 10 months
Contributions summary:Christoph primarily focused on improving the codebase's maintainability and developer experience. Their work included removing deprecated files, adding a changelog, and properly handling JSDom contexts. They also improved the path matching when testPathIgnorePatterns is empty.
painless-javascript-testingjesttestingjavascriptfacebook
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