Jo Sprague
Front End App Consultant at d5n5
Miami, Florida, United States
Summary
🤩
Rockstar🎓
Top SchoolJo Sprague is a front-end app consultant based in Miami with 14 years of hands-on experience building scalable, user-focused web applications for mission-driven organizations and clients like NASA. He combines full-stack chops—React, Node and GraphQL—with a strong track record of performance optimization, test automation, and rapid deployment improvements that shortened release times from hours to minutes. Recent work spans humanitarian mapping, climate and sea-level simulation tools, an Ethereum-based Wikipedia competitor, and contributing front-end UX improvements to NASA Worldview’s high-resolution satellite imagery interface. Jo pairs pragmatic engineering (CI/CD, automated browser tests, unit/integration testing) with product-minded UI work, and he often chooses projects that deliver social impact. An unexpected throughline: he’s built tooling and processes that routinely saved teams thousands of dollars and weeks of manual effort, enabling faster iteration and higher quality.
14 years of coding experience
17 years of employment as a software developer
Mass Media Communication Radio/TV, Mass Media Communication Radio/TV at The University of Akron
Spanish, English, Hungarian
Stackoverflow
16,881reputation
2.7mreached
43answers
51questions
css
top-5%
lodash
top-5%
html
top-5%
javascript
top-5%
Github Skills (18)
javascript10
css10
user-interface10
webmap9
html9
lodash9
data-visualization8
user-experience8
data-visualisation8
ux-design8
data-visualizations8
react-router6
create-react-app6
react6
firefox6
Programming languages (27)
Github contributions (5)
nasa-gibs/worldview
Aug 2017 - Jan 2018
Interactive interface for browsing global, full-resolution satellite imagery
Role in this project:
Front-end Developer
Front-end DeveloperContributions:3 releases, 284 commits, 83 PRs in 6 months
Contributions summary:Jo primarily contributed to the front-end development of the "Worldview" application, focusing on the user interface and user experience. Their commits involved adding new functionality to enhance UI, such as incorporating a reset function to the logo. They fixed reported bugs to improve functionality and address grammar issues. The user also made modifications to CSS files to update the look and feel of the interface and improved the responsiveness of the application across devices.
satellite-imagerysatellitenasa-gibsresolutionimagery
localjo/remote-job-boards
Apr 2015 - Nov 2019
A list of job boards with mostly remote positions. Open a PR to add more.
Contributions:7 PRs, 9 pushes, 1 branch in 4 years 7 months
jobopen-positionspositions
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