Ben Chatelain
Senior Product Engineer at Ditto
Denver, Colorado, United States
Summary
🤩
Rockstar🎓
Top SchoolBen Chatelain is a senior product engineer with 18 years of experience building scalable mobile platforms, SDKs, and developer tooling, currently leading Kotlin Multiplatform and Java SDK efforts at Ditto from Denver. He combines deep Kotlin and modern Android architecture expertise with cross-platform work on iOS and KMP, shipping production apps and SDKs used at scale and improving CI/CD to cut SDK build times by 90%. At Kaiser Permanente he architected enterprise mobile libraries and delivery pipelines supporting millions of users, and his open-source contributions span well-known projects like Carthage, OAuthSwift, and Gradle Xcode tooling—reflecting a strong focus on build systems, automation, and reliability. Ben gravitates toward ambiguous, high-leverage problems—early platform support, performance constraints, and developer experience—and amplifies team impact through tooling, documentation, and public speaking. Outside of work he actively contributes to OSS and shares learnings at conferences, often experimenting with new languages and unconventional engineering approaches.
18 years of coding experience
26 years of employment as a software developer
B.S Computer Science Software Programming Emphasis, B.S Computer Science Software Programming Emphasis at Southern Oregon UniversityComputer Science, Computer Science at George Fox Universityhigh school diploma Calculus Physics Chemistry English, high school diploma Calculus Physics Chemistry English at Yreka High SchoolCollege of the Siskiyous
English
Stackoverflow
3,982reputation
3.6mreached
28answers
2questions
iphone
top-5%
Github Skills (48)
cli10
unit-testing10
git10
objective-c10
ios10
apidoc10
groovy10
testing10
command-line-interface10
cocoa10
package-manager-tool10
xcode10
api10
build-automation10
command-line10
Programming languages (24)
Github contributions (5)
mas-cli/mas
May 2017 - Oct 2022
:package: Mac App Store command line interface
Role in this project:
Back-end Developer
Back-end DeveloperContributions:87 releases, 101 reviews, 842 commits in 5 years 5 months
Contributions summary:Ben primarily worked on the command-line interface for the Mac App Store. Their contributions included code modifications within the `Commandant` and `Result` frameworks, indicating involvement in the core functionality of the tool. The user also modified files related to commands such as installing and upgrading apps, as well as added features to the install commands, suggesting a focus on the core functionality of the CLI tool. The commits show the user addressing both new code features and bug fixes within the code base.
command-line-toolmac-app-storeosxapp-storecommand-line-interface
libgit2/objective-git
Apr 2015 - May 2018
Objective-C bindings to libgit2
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:200 commits, 59 PRs, 58 pushes in 3 years
Contributions summary:Ben contributed significantly to the Objective-Git project, primarily by implementing pull functionality and integrating it with the existing codebase. They implemented and refactored core functionalities of pull requests including the correct merge and fast forward scenarios. Their contributions also involved updating the fetch and push operations, as well as the cloning functionality of the project.
objective-cc-bindingslibgit2ioscocoa
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