Dan Kim
Product Engineer
London, England, United Kingdom
Summary
🤩
RockstarDan Kim is a product-focused engineer and designer based in London with 12 years of experience building and maintaining backend systems and developer-facing libraries. He has a strong Ruby background, contributing to notable open-source projects such as Sorcery (authentication), Venice (in-app purchase receipt verification), and Houston (APNs), often improving security flows, test coverage, and code quality. Comfortable across product and engineering boundaries, he blends pragmatic refactors with feature work—e.g., adding iOS 10+ mutable notification support and tightening OAuth/HTTP Basic auth behavior. Dan favors maintainable, well-tested code and has repeatedly modernized dependencies and style across libraries to reduce technical debt. Colleagues would notice his dual mindset: shipping reliable back-end systems while keeping an eye on the end-user product experience.
12 years of coding experience
English, French, Russian
Stackoverflow
1,281reputation
93kreached
12answers
17questions
Github Skills (19)
apn10
ruby-rails10
package-development10
rspec10
user-authentication10
authentication10
rails10
ruby10
oauth10
testing9
apidoc8
api8
turbolinks6
ruby-on-rails6
android6
Programming languages (12)
Github contributions (5)
nomad-cli/houston
Dec 2016 - Sep 2019
Apple Push Notifications; No Dirigible Required
Role in this project:
Back-end Developer
Back-end DeveloperContributions:17 commits, 26 PRs, 36 pushes in 2 years 9 months
Contributions summary:Dan primarily focused on updating and improving the codebase's style, likely to enhance readability and maintainability. They implemented features to support mutable content in notifications for iOS 10+ devices, indicating interaction with APNs functionality. Additionally, the user updated the project's version and modified internal code structure and error handling, demonstrating a focus on project maintenance and stability.
pushpush-notificationsnotificationsiosmacos
nomad-cli/venice
Oct 2017 - Nov 2019
Ruby Gem for In-App Purchase Receipt Verification
Role in this project:Back-end Developer
Back-end DeveloperContributions:20 commits, 36 PRs, 45 pushes in 2 years 1 month
Contributions summary:Dan focused on maintaining and improving the `venice` Ruby gem, which verifies in-app purchase receipts. They updated the project's dependencies, specifically upgrading RSpec. The user refactored the code by updating code style and removing a method. Additionally, they addressed code style inconsistencies across multiple files within the library, enhancing code readability and maintainability.
ruby-gemappstorestorekitsubscriptionvisa
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