Matthew Lalley
Principal Software Development Engineer at Sonos, Inc.
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolMatthew Lalley is a Principal Software Development Engineer based in Seattle with 15 years of experience building reliable mobile and front-end software for Android, iOS, and web. He has a strong track record at companies from Hulu and Quibi to Sonos, where he combines hands-on development with technical leadership to drive projects from planning through testing and delivery. Known for improving team performance through mentorship, cross-functional communication, and pragmatic problem-solving, he emphasizes attention to detail and validation to reduce production risk. Matthew contributes to open-source front-end tooling—examples include a well-crafted Angular YouTube embed directive—reflecting a taste for web experiments and maintainable code. He brings QA roots to his engineering practice, which informs his emphasis on reliability and observable systems. A Washington State University computer science alumnus, he blends startup agility with large-product discipline to ship polished user experiences.
14 years of coding experience
11 years of employment as a software developer
Computer Science, Computer Science at Washington State University
Github Skills (6)
javascript10
front-end-development10
youtube-api10
angular10
directive10
html9
Programming languages (16)
Github contributions (5)
brandly/angular-youtube-embed
Mar 2014 - May 2021
:tv: Embed a YouTube player with a simple directive
Role in this project:
Front-end Developer
Front-end DeveloperContributions:149 commits, 13 PRs, 51 pushes in 7 years 3 months
Contributions summary:Matthew primarily contributed to the development and maintenance of a YouTube embed directive for Angular. Their work involved implementing features such as passing and watching video IDs, integrating player state change events, and handling various player-related configurations like player size and playlist support. The user also refactored code to improve clarity and maintainability, as well as updating the demo application to showcase the directive's capabilities. Several commits address minor style and formatting issues.
javascriptbackbonejsyoutube-playeryoutubedirective
brandly/elm-dr-mario
Jul 2018 - Apr 2020
👨⚕️💊🦠
Contributions:160 commits, 9 PRs, 80 pushes in 1 year 9 months
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