Dan Kubb
Self Employed
Mission, British Columbia, United States
Summary
🤩
RockstarDan Kubb is a Principal Engineer with 17 years of experience building and scaling Ruby on Rails applications for startups and SMBs, focused on automating marketing and operational workflows. He blends hands-on backend engineering, system architecture, and project leadership—having delivered ecommerce systems handling millions in annual sales and reduced manual fulfillment tasks from hours to minutes. An active open-source contributor, Dan has improved core Ruby projects like Rack, Solidus, Spree, Virtus, and Mutant, bringing stability, test coverage, and maintainability to widely used libraries. He’s led teams and built CI/CD systems that cut verification times dramatically, and uniquely pairs deep Rails expertise with practical integrations across legacy backends to simplify administration and boost revenue. Based in Mission, British Columbia, he now drives technical strategy for a stealth AI startup while continuing freelance work for SMBs.
17 years of coding experience
17 years of employment as a software developer
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (38)
ruby-rails10
back-end-development10
ecommerce10
testing10
rspec10
persistent-data10
rails10
data-persistence10
object-oriented-programming10
refactor10
ruby10
mutation-testing10
payment-processing10
persistence10
sql10
Programming languages (11)
Github contributions (5)
solnic/virtus
Jun 2011 - Sep 2013
[DISCONTINUED ] Attributes on Steroids for Plain Old Ruby Objects
Role in this project:
Backend Developer
Backend DeveloperContributions:411 commits in 2 years 4 months
Contributions summary:Dan primarily focused on refactoring and improving the core functionality of the Virtus library, which is designed for attributes on Ruby objects. Their work involved refactoring and simplifying existing code, specifically related to the definition and handling of attributes, along with addressing edge cases and adding features. They improved code formatting, fixed logic errors, and implemented best practices for maintainability and clarity, while also expanding the test coverage.
rubysteroidsdry-rbdiscontinuedplain
mbj/mutant
Mar 2013 - Nov 2018
Automated code reviews via mutation testing - semantic code coverage.
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:2 reviews, 216 commits, 45 PRs in 5 years 8 months
Contributions summary:Dan primarily focused on improving the quality and reliability of the `mutant` project, which is centered around automated code reviews via mutation testing. Their contributions involved adding mutators to test different code conditions, enhancing test coverage, and fixing bugs. The user demonstrated proficiency in Ruby by modifying existing code and YARD docs to ensure 100% coverage. These commits also show knowledge of RSpec and other testing frameworks.
minitestcodeclimateuncovered-semanticsmutationruby
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.