Jonathan Lehman
Software Engineer at Facebook
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolJonathan Lehman is a Seattle-based software engineer with 12 years of experience building full-stack web applications and infrastructure, currently contributing at Facebook. He has a track record across startups and established teams—from leading a contract engineering effort to senior roles at Panoply Media and CustomInk—bringing practical expertise in both front-end Sass tooling and back-end data handling. An active open-source contributor, Jonathan improved hyperlink parsing in the widely used mammoth.js docx-to-HTML converter and added lifecycle serialization hooks to an isomorphic Flux implementation, reflecting attention to interoperability and robust testing. He graduated with a 3.91 BS in Computer Science from William & Mary and often pairs deep technical refactoring with documentation and test updates to make changes durable and maintainable. Colleagues know him for solving subtle parsing and portability problems that quietly improve developer and user experience at scale.
13 years of coding experience
11 years of employment as a software developer
Bachelor of Science (BS), Computer Science, 3.91, Bachelor of Science (BS), Computer Science, 3.91 at The College of William and Mary
Github Skills (11)
css10
state-management10
sass10
javascript10
front-end-development10
document-conversion10
testing10
react9
documentation9
html9
responsive-design8
Programming languages (13)
Github contributions (5)
goatslacker/alt
Feb 2015 - Apr 2016
Isomorphic flux implementation
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:125 commits, 54 PRs, 118 pushes in 1 year 1 month
Contributions summary:Jonathan implemented new lifecycle hooks (serialize/deserialize) for the isomorphic flux implementation, allowing data transformation during snapshotting and bootstrapping. They added these hooks to core Alt methods, and expanded testing to cover these new features. The changes also included modifications to support custom snapshotting and bootstrapping, and refactoring the existing snapshotting and bootstrapping code.
javascripttypescriptfluxisomorphic
mwilliamson/mammoth.js
Feb 2017 - Feb 2017
Convert Word documents (.docx files) to HTML
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 1 PR, 8 comments in 15 days
Contributions summary:Jonathan contributed to the development of hyperlink functionality within the `mammoth.js` library. Their work involved refactoring the handling of complex fields, enabling the parsing of hyperlinks from Word document structures, and correctly interpreting nested complex fields. The user's commits also included updates to testing infrastructure, adding specific test cases to validate the correct parsing and rendering of hyperlinks within the document conversion process. These changes improved the library's ability to accurately convert Word documents to HTML, particularly concerning hyperlink elements.
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