Speaker

Alan Ridlehoover

Alan Ridlehoover

Sr. Engineering Manager @ Cisco

San Francisco, California, United States

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Empathetic leader (@ Cisco).
Passionate Rubyist.
Fallible human.
Storyteller. International speaker.
Environmentalist. Feminist. Ally.
Swell photographer. Rusty drummer.
Loving twins dad and husband.
Owner of too many hats, given I only have the one head.

Area of Expertise

  • Business & Management
  • Information & Communications Technology

Topics

  • ruby
  • rails
  • ruby on rails
  • Code Quality
  • Code Coverage
  • Code Complexity
  • Leadership
  • Empathy
  • passion
  • fearlessness
  • Psychological safety
  • Emotional Intelligence

Derailing Our Application: How and Why We Are Decoupling Our Code from Rails

Cisco is probably the largest Rails shop you’ve never heard of. Our 4 million line Ruby codebase has been under continuous development since 2007. As with any large codebase, ours is not without challenges. In “Derailing Our Application,” we share how our architecture has evolved to decouple 800,000 lines of Ruby code from Rails constructs in order to enable us to scale our team to 1,000 engineers and beyond without losing the benefits of Rails. Join us on the track less traveled! All aboard!

Indispensable: What Human Computers Can Teach Human Programmers

No one told them what to expect, but the machine was coming.

Dozens were laid off in NASA's transition from human to digital computing.

Because the machine could calculate, generalists were expendable. But it could not formulate. So, those who embraced the change (learned to program), knew the domain (orbital mechanics), and could verify the results became indispensable.

Now it's our turn as Rubyists: to embrace change, to leverage our expertise, and to verify the results. That's how we become indispensable.

A Brewer's Guide to Filtering out Complexity and Churn

Mechanical coffee machines are amazing! You drop in a coin, listen for the clink, make a selection, and the machine springs to life, hissing, clicking, and whirring. Then the complex mechanical ballet ends, splashing that glorious, aromatic liquid into the cup. Ah! C’est magnifique! There’s just one problem. Our customers also want soup! And, our machine is not extensible. So, we have a choice: we can add to the complexity of our machine by jamming in a new dispenser with each new request; or, we can pause to make our machine more extensible before development slows to a halt.

Video: https://www.rubyevents.org/talks/a-brewer-s-guide-to-filtering-out-complexity-and-churn-rocky-mountain-ruby-2024

The Secret Ingredient: How To Understand and Resolve Just About Any Flaky Test

Flaky tests are an inscrutable bane. Hard to understand. Annoying. And, so frustrating! My personal nemesis is Daylight Saving Time. I can’t tell you how many times I’ve tripped over it. Let’s just say I was well into the “shame on me” part of that relationship, until I discovered the secret ingredient that nearly all flaky tests have in common. Turns out they only seem inscrutable. It really is possible to understand and resolve just about any flaky test.

Video: https://www.rubyevents.org/talks/the-secret-ingredient-how-to-understand-and-resolve-just-about-any-flaky-test

San Francisco Ruby Conference 2025

Derailing Our Application: How and Why We Are Decoupling Our Code from Rails
https://www.rubyevents.org/talks/derailing-our-application-how-and-why-we-are-decoupling-our-code-from-rails-san-francisco-ruby-conference-2025

November 2025 San Francisco, California, United States

Rocky Mountain Ruby 2025

The Other Side of Fear (Lightning Talk)
https://www.rubyevents.org/talks/lightning-talk-the-other-side-of-fear-rocky-mountain-ruby-2025

October 2025 Boulder, Colorado, United States

RailsConf 2025 Sessionize Event

July 2025 Philadelphia, Pennsylvania, United States

RailsConf 2025

The Other Side of Fear (Lightning Talk)
https://www.rubyevents.org/talks/lightning-talk-the-other-side-of-fear

July 2025 Philadelphia, Pennsylvania, United States

RailsConf 2025

Derailing Our Application: How and Why We Are Decoupling Our Code from Rails
https://www.rubyevents.org/talks/derailing-our-application-how-and-why-we-are-decoupling-our-code-from-rails

July 2025 Philadelphia, Pennsylvania, United States

Sin City Ruby 2025

A Brewer's Guide to Filtering Out Complexity and Churn

April 2025 Las Vegas, Nevada, United States

Rocky Mountain Ruby Sessionize Event

October 2024 Boulder, Colorado, United States

RailsConf 2024

A Gardener's Reward (lightning talk)
https://youtu.be/8QgQsQoODz0?si=7ZiBOK5lcD_iIQ_F

May 2024 Detroit, Michigan, United States

Tropical.rb 2024

A Brewer's Guide to Filtering Out Complexity and Churn
https://youtu.be/ysTtQgQQSUA?si=3BVRZgIt8xbDnKA2

April 2024 São Paulo, Brazil

RubyConf 2023 Sessionize Event

November 2023

RailsConf 2023 Sessionize Event

April 2023 Atlanta, Georgia, United States

RubyConf Mini (2022)

A Brewer's Guide to Filtering Out Complexity and Churn
https://youtu.be/RJRSosxtzbU?si=EuftxHKAocIpm6yG

November 2022 Providence, Rhode Island, United States

Alan Ridlehoover

Sr. Engineering Manager @ Cisco

San Francisco, California, United States

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