Jeff Lembeck
Staff Software Engineer at The Trade Desk
Seattle, Washington, United States
Summary
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Rockstar🎓
Top School
Top expert inFront-End Web Development and Design Essentials
Jeff Lembeck is a Staff Software Engineer in Seattle with 14 years of experience building developer tools, responsive front-ends, and full-stack features for performance-sensitive products. He moves comfortably between individual contributor and management roles, having led engineering teams at npm and Eaze and delivered technical leadership at Catchpoint, Humanly, and The Trade Desk. A long-time open-source contributor, Jeff has improved widely used projects around responsive design and tooling—work that includes contributions to jQuery Mobile, Picturefill, and performance tooling like WebPageTest and criticalCSS. He’s equally at home refactoring build systems and adding pragmatic features (e.g., Grunticon integrations and media-query support) as he is teaching and speaking about developer workflows. Known for an affable, practical approach, he combines curiosity about languages like Rust with deep JavaScript ergonomics to make complex systems more usable.
14 years of coding experience
16 years of employment as a software developer
Bachelor's Political Science: Political Economy, Bachelor's Political Science: Political Economy at University of WashingtonBachelor of Science - BS Computer Science, Bachelor of Science - BS Computer Science at The Ohio State University
Stackoverflow
11reputation
343reached
1answer
0questions
Github Skills (38)
javascript10
jquery10
jquery-mobile10
testing10
table-html10
css10
responsive-design10
user-interface10
table-structure10
ui-design10
gruntjs10
tableview10
uid10
php10
qunit10
Programming languages (10)
Github contributions (5)
scottjehl/Respond
Nov 2013 - Jan 2017
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Role in this project:
Front-end Developer
Front-end DeveloperContributions:50 commits, 2 PRs, 2 pushes in 3 years 2 months
Contributions summary:Jeff's commits primarily involve code style adjustments and improvements, like removing whitespace, ensuring consistent spacing, and switching to tabs. They also added a minified version of the core library. They seem focused on code quality and build process automation, suggesting a role in maintaining the project's frontend codebase.
media-queries
filamentgroup/grunticon
Oct 2012 - Sep 2016
A mystical CSS icon solution.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:430 commits, 18 PRs, 71 pushes in 4 years
Contributions summary:Jeff's commits focused on the Grunticon project, a CSS icon solution. Their contributions involved improving code quality by removing whitespace and standardizing on tabs over spaces. They also added features such as the ability to specify a CSS prefix and a more flexible method for users to set up the configuration options for the project, which further demonstrates a focus on user-friendliness. Furthermore, the user integrated the project for use with Grunt 0.4 and later to improve the codebase's maintainability.
css
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