David Johnson - Staff Engineer at H-E-B

David Johnson

Staff Engineer at H-E-B

United States

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David Johnson is a Staff Engineer with 13 years of experience specializing in Haskell-powered systems and front-end development. He currently leads engineering efforts at H-E-B and has built production Haskell products ranging from unikernel networking appliances to a GRID graph database. An active open-source maintainer, David is the driving force behind miso, a Haskell front-end framework, and has contributed Miso improvements to the well-known js-framework-benchmark project. He combines deep research and government R&D experience with hands-on startup and product-building roles, including co-founding a full-stack translation product. Fluent in both functional programming and practical engineering trade-offs, he often surfaces subtle runtime and DOM optimizations (e.g., virtual DOM text-node collapsing and dynamic event/property handling). His background in languages and diverse academic studies gives him an atypical mix of technical rigor and cross-disciplinary perspective.

13 years of coding experience

10 years of employment as a software developer

Geography, History, Geography, History at Jerusalem University College

Master of Science (MSc), Computer Science, Master of Science (MSc), Computer Science at University of Chicago

Russian Language and Literature, Russian Language and Literature at Wittenberg University

Economics, Marketing, Management, Finance, Economics, Marketing, Management, Finance at International Business Institute

Information Systems, Information Systems at Cedarville University

Stackoverflow

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Github Skills (8)

javascript10

virtual-dom10

event-handling10

front-end-development10

html9

web-performance9

accessibility8

css5

Programming languages (21)

C++CSSCMakefileTeXElmGoHTML

Github contributions (5)

dmjio/miso

Jun 2016 - Oct 2022

:ramen: A tasty Haskell front-end framework

Role in this project:

Front-end Developer

Contributions:56 releases, 12 reviews, 720 commits in 6 years 4 months

Contributions summary:David updated the event delegation code, adding support for multiple and dynamic properties. They refactored the approach used, with new examples, while also fixing a bug in the old implementations. The user also contributed to refactoring the code base, improving readability and overall stability by collapsing consecutive text nodes in the virtual DOM.

virtual-domghcjsmisotastyhaskell

krausest/js-framework-benchmark

Mar 2018 - Feb 2020

A comparison of the performance of a few popular javascript frameworks

Role in this project:

Front-end Developer

Contributions:14 commits, 7 PRs, 31 comments in 1 year 10 months

Contributions summary:David primarily contributed to the Miso framework implementation within the "js-framework-benchmark" repository, which focuses on performance comparisons of JavaScript frameworks. Their work included bumping the Miso version, adding non-keyed implementations and setting aria-hidden attributes. These changes likely improved the framework's functionality and accessibility within the broader benchmark project.

benchmarkingv8-javascript-enginejavascriptcomparisonframework

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