John Detlefs
Senior Associate
San Marcos, Texas, United States
Summary
🤩
Rockstar🎓
Top SchoolJohn Detlefs is a senior software engineer with a decade of experience building full-stack web applications and cloud-native systems, currently contributing to Kunai within the PwC Network from San Marcos, Texas. He blends front-end craftsmanship—shaping user-facing UI in projects like nteract—with back-end and reliability engineering expertise honed at GoDaddy, where his work reduced critical endpoint latency and supported high-revenue dashboards. A practical polyglot, he’s shipped production services using React, Node, Typescript, AWS CDK, Kubernetes and Go, and has been an open-source contributor to notable projects such as MDAnalysis and nteract. Comfortable owning features end-to-end, he pairs A/B-driven product thinking with operational on-call experience and test-focused development. Trained in both chemistry and mathematics, he brings analytical rigor and a curiosity for data-driven solutions that inform his approach to UX and performance trade-offs.
11 years of coding experience
10 years of employment as a software developer
California Polytechnic State University, San Luis ObispoFull Stack Web Development Computer Software Engineering, Full Stack Web Development Computer Software Engineering at freeCodeCamp
Spanish
Stackoverflow
182reputation
9kreached
6answers
6questions
Github Skills (28)
javascript10
python10
css10
analyse10
mdanalysis10
regex10
molecular-dynamics-simulation10
front-end-development10
nonlinear-dynamics10
react10
molecular-simulation9
react-components9
user-interface9
react-component9
ui-design9
Programming languages (11)
Github contributions (5)
nteract/archived-desktop-app
Jul 2016 - Jun 2020
📘 The interactive computing suite for you! ✨
Role in this project:
Front-end Developer
Front-end DeveloperContributions:378 commits, 270 PRs, 186 pushes in 3 years 11 months
Contributions summary:John primarily contributed to the front-end of the nteract project by implementing and modifying UI components. Their work focused on refining the user interface for the application, including creating and modifying toolbar components for cell actions and adjusting styling with CSS. They also addressed bugs related to focus and ensuring the proper display of markdown cells and the overall user experience.
nteractdesktop-applicationmonoreporeactpython
MDAnalysis/mdanalysis
Mar 2016 - Feb 2017
MDAnalysis is a Python library to analyze molecular dynamics simulations.
Role in this project:Back-end Developer
Back-end DeveloperContributions:122 commits, 19 PRs, 517 comments in 11 months
Contributions summary:John primarily focused on improving the `maintainer/change_release.sh` script for version control, including regex updates, handling whitespace, and supporting "dev" and "rc" versions. They made several updates to the CHANGELOG and AUTHORS files, adding their GitHub ID and name. The user also worked on test suite improvements, adding and modifying tests related to the `rms.py` module to account for weighting and superposition.
mdanalysismolecular-dynamics-simulationpythonmolecular-dynamicsscience
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