Paul Keen is the Chief Technology Officer & Open Source Contributor at JetThoughts, which he founded in 2008.
Background
- First professional software role in 2004, so he has written software for 22+ years.
- Top contributor to snap_diff-capybara, an open-source visual testing gem for Capybara.
- Author of the jt_tools and r2m gems on RubyGems.
- Works in Ruby on Rails and React.
Elsewhere
Posts by Paul Keen
- Should You Let Them Build It in Rails?
- Have an App Idea? Here's Where to Start
- Autonomous Agent Teams Succeed 13% to 59% of the Time
- "Generate Then Verify" Moved Your Work. It Didn't Remove It.
- Your Dev Shop Says the Code Was Reviewed. By What?
- Your Link Checker Is Probably Checking Nothing
- What Senior Devs Catch That AI Misses
- How to Audit Content You Didn't Write
- Ruby Concurrency Patterns: Threads, Fibers and Ractors
- Rails performance at scale: 10K to 1M users roadmap
- Fractional or Full-Time CTO? The Total Cost of Each
- Five Mindset Shifts That Decide a Developer's Career
- 5 Warning Signs Your Startup Needs Technical Leadership
- Fractional CTO vs Full-Time CTO: A Side-by-Side Comparison
- Ruby on Rails Development Cost 2025: Pricing Breakdown
