H Daniels is a Principal Software Engineer with 14 years of experience, currently driving delivery and best practices at Fastly after rising through senior and staff roles there. He specializes in Ruby on Rails backends paired with JavaScript frontends and has nearly a decade focused on that stack while consistently shipping company-critical code under tight deadlines. A hands-on engineering leader and former manager, he coaches teams, improves processes, and still contributes code—evidenced by backend contributions to the roo spreadsheet library where he improved performance and robustness. His background spans startups and product-focused companies (Dribbble, GiveCampus, Jibe) and includes uncommon cross-cultural experience from studying Chinese language and building Chinese-language products. Reliable under pressure and pragmatic about tooling, he blends coaching, architecture, and day-to-day development to make teams measurably more effective.
14 years of coding experience
15 years of employment as a software developer
Economics, Economics at Duke University
Bachelor's Degree Chinese Language and Literature, Bachelor's Degree Chinese Language and Literature at Beijing Language University
Roo provides an interface to spreadsheets of several sorts.
Role in this project:
Back-end Developer
Contributions:181 commits, 138 PRs, 108 pushes in 3 years
Contributions summary:H primarily contributed to the `roo-rb/roo` repository, which provides an interface for working with spreadsheets. Their commits focused on enhancing the core functionality of the library. They updated the :clean option to improve the handling of special characters in spreadsheet data and memoized a performance-critical function. Additionally, the user implemented improvements to the internal workings of the excelx module, adding tests and fixing bugs.
Contributions:14 pushes, 1 branch, 4 issues in 7 years 11 months
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