Jon Elofson
Software Engineer at ucsf-ckm Ilios Project
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJon Elofson is a pragmatic software engineer with 13 years of experience building reliable data pipelines and developer-facing tooling across health tech and consumer startups. He’s shipped Python, Spark, Docker, AWS, and Snowflake solutions at Flatiron Health to deliver data to cancer practices, and has full-stack experience from Django and Rails to React and Ember. An active open-source contributor, Jon has improved core Ember libraries and Symfony docs—fixing edge-case bugs, hardening serializers, and strengthening test suites for widely used projects. His background in neuroscience and clinical research informs a careful, data-oriented approach to engineering, and he’s known for turning research-grade pipelines into production-ready systems.
13 years of coding experience
8 years of employment as a software developer
Fiction, Fiction at University of North Carolina WilmingtonNeuroscience, Neuroscience at Brown University
Stackoverflow
2,431reputation
359kreached
104answers
6questions
Github Skills (30)
api-rest10
javascript10
ember-data10
restructuredtext10
api-design10
restful-api10
testing10
ember-cli10
rs10
doc10
data-loading10
emberjs10
ember-testing10
ember10
symfony10
Programming languages (19)
Github contributions (5)
DockYard/ember-composable-helpers
Jun 2017 - Jun 2020
Composable helpers for declarative templating in Ember
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 commits, 7 PRs, 16 comments in 3 years
Contributions summary:Jon primarily contributed to the `ember-composable-helpers` repository by fixing bugs and improving the functionality of existing helpers. They addressed issues related to handling null arrays in multiple helpers, ensuring that the helpers do not throw errors when provided with null data. Additionally, the user implemented fixes for specific edge cases and improved the overall robustness of the helper library. Further, they refactored code to work with Ember Data and Ember promises.
ember-addontemplatingdeclarativeemberjsember
ember-cli/ember-cli
Mar 2015 - Jan 2020
The Ember.js command line utility.
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:5 commits, 8 PRs, 23 comments in 4 years 10 months
Contributions summary:Jon primarily focused on enhancing the test suite for the Ember CLI project. They added new test cases to validate the functionality of the `test` command, specifically regarding the `launch` and `test-page` options. These changes involved modifying test configurations and assertions to ensure the command behaved as expected under various scenarios. Additionally, the user improved error messaging related to package installation, making it clearer for new users to resolve dependency issues.
ember-clijavascriptcommand-line-utilityemberember-js
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