David Simmer
Senior Software Engineer at Netflix
Saint Paul, Minnesota, United States
Summary
🤩
RockstarDavid Simmer is a Senior Software Engineer with 12 years of experience building product-focused web and mobile systems, currently advancing Productivity Engineering at Netflix from Saint Paul, Minnesota. He blends full-stack fluency—from Python/Django and Rails to React and modern frontend tooling—with a strong design sensibility honed running his own creative engineering shop and shipping cross‑platform mobile tooling. David has led teams to measurable business impact, including a frontend rewrite that doubled signups at Rinse and operational tooling that saved thousands monthly. He contributes to open source front-end projects, notably improving line-numbering and wrapping in the popular react-syntax-highlighter component. A patient mentor and pragmatic leader, he specializes in making developer experiences delightful and removing friction across product, ops, and field teams.
12 years of coding experience
19 years of employment as a software developer
Stackoverflow
2,694reputation
152kreached
124answers
0questions
css
top-5%
Github Skills (13)
component-development10
css10
javascript10
react10
user-interface9
html6
wordpress6
font-face6
material-ui6
sandbox6
create-react-app6
jquery6
flask6
Programming languages (10)
Github contributions (5)
react-syntax-highlighter/react-syntax-highlighter
Feb 2020 - Mar 2022
syntax highlighting component for react with prismjs or highlightjs ast using inline styles
Role in this project:
Front-end Developer
Front-end DeveloperContributions:26 releases, 6 reviews, 164 commits in 2 years 1 month
Contributions summary:David's commits primarily focused on enhancing the line numbering functionality within the React syntax highlighting component. They implemented the ability to display line numbers, added styling for the line number elements, and refactored the code to handle wrapping lines and displaying line numbers. These changes improved the usability of the component by providing visual cues for code lines.
reacthighlightasthighlightjsinline
simmerer/simmer-fastshell
Sep 2019 - Jan 2022
source of simmer.ooo since early 2018
Contributions:15 releases, 7 PRs, 99 pushes in 2 years 3 months
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