Zach Cmiel - IOS Engineer at Reverb

Zach Cmiel

IOS Engineer at Reverb

Chicago, Illinois, United States

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Summary

👤

Senior

🎓

Top School

Zach Cmiel is an iOS engineer and human-centered product designer with 10 years of experience building consumer and research-facing apps, currently focused on mobile features and experimentation at Reverb after leading feature work at The Washington Post. He has shipped high-impact products—from redesigning mobile search and Lock Screen widgets to integrating Ask the Post AI and optimizing 2024 election results—using Swift, SwiftUI, and data-informed A/B testing. Zach also founded and scaled makeART, blending ARKit, CoreML, and generative art to create creative tooling, and contributed front-end improvements to the widely used JuxtaposeJS before/after image slider. With a BS in Computer Science/Product Design and an ongoing MS in Data Science, he combines design empathy with data visualization skills to solve complex UX problems. Colleagues rely on him for cross-disciplinary collaborations that bridge design, ML-driven creative features, and production iOS engineering.

10 years of coding experience

10 years of employment as a software developer

Saint Ignatius College Prep

Master of Science - MS Data Science and AI, Master of Science - MS Data Science and AI at Northwestern University

Stackoverflow

Stats

3reputation

217reached

0answers

1question

Github Skills (8)

javascript10

ui-design10

image-processing10

html9

css9

spritekit6

objective-c6

colors6

Programming languages (3)

JavaScriptObjective-CSwift

Github contributions (5)

NUKnightLab/juxtapose

Apr 2022 - May 2022

JuxtaposeJS is a JavaScript library for making before/after image sliders

Role in this project:

Front-end Developer

Contributions:17 commits, 7 pushes, 1 branch in 1 month

Contributions summary:Zach focused on enhancing the user interface for a JavaScript library designed for before/after image sliders. Their work involved fixing a MIME header error related to image retrieval and base64 encoding, indicating a need to correctly handle image data. They also worked on generating GIF animations within the application, creating loading animations, adding a download button, and improving the image resizing parameters. Furthermore, the user implemented the core functionality for a new UI and demo.

javascript-libraryimageslidersjavascriptbefore-after

zach-cmiel/hackclub

Jan 2016 - Jan 2016

Contributions:7 pushes, 1 branch in 5 days

ledjavascriptclubsworldwide

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