Best Ruby On Rails Testing Podcasts (2025)

1
278 - Austin Chadwick and Chris Lucian, Co-Hosts of the Mob Mentality Show 57:57

4h ago57:57

57:57

In this episode I talk with Austin Chadwick and Chris Lucian about AI and machine learning. We discuss why LLMs may not lead to AGI, the history of AI funding, the philosophy of induction versus explanation, and my robot project idea for building intelligence from sensory experience up. Links: Mob Mentality Show Nonsense Monthly…

1
Jay Tennier: How Testing Platform Rainforest QA Tests Itself 1:40:03

2h ago1:40:03

1:40:03

In this episode of On Rails, Robby is joined by Jay Tennier, Engineering Manager at Rainforest QA, where he's spent over seven years working across a long-lived Rails monolith and supporting services. They explore how Rainforest maintains their platform with a small team, and the practical decisions that come with that reality. Jay shares lessons f…

1
277 - Gregory Kapfhammer 1:04:15

10d ago1:04:15

1:04:15

In this episode I talk with Gregory Kapfhammer about flaky tests. We cover their five main causes, why fixing individual flaky tests isn't enough, and how test suite health connects to broader engineering practices, team culture, and the overall quality mindset of an organization. Links: https://www.gregorykapfhammer.com/ http://www.linkedin.com/in…

1
Domain Monitor SaaS Introduction 1:57

9d ago1:57

1:57

A peek into the Domain Monitor SaaS product that we'll be building in this series with Rails, Stripe, Solid Queue, and Kamal.By Chris Oliver

1
Markdown Renderer & MIME Type in Rails 8.1 5:10

11d ago5:10

5:10

Rails 8.1 introduces a new Markdown MIME Type and renderer to better integrate your apps with AI and other tools that use MarkdownBy Chris Oliver

1
276 - Todd Kaufman, Agent #001 at Test Double 56:40

24d ago56:40

56:40

In this episode I talk with Todd Kaufman about founding Test Double, focusing on hiring senior consultants who excel at communication and empathy. We discuss how consulting is 90% psychology, the importance of seeking to understand before being understood, and why most software projects still fail due to organizational rather than technical issues.…

1
Kayla Reopelle: What Your Rails App Is Trying To Tell You 1:02:09

28d ago1:02:09

1:02:09

In this episode of On Rails, Robby is joined by Kayla Reopelle, a lead software engineer at New Relic, where she works on both the Ruby Agent and OpenTelemetry RubyGems. They explore what observability means for Rails developers—not just as a debugging tool, but as a way to build clearer, more reliable systems. Kayla explains OpenTelemetry's vendor…

1
275 - Irina Nazarova, Organizer of SF Ruby Conference 58:53

1M ago58:53

58:53

In this episode I talk with Irina Nazarova about the San Francisco Ruby Conference happening November 19-21. She explains why SF needs a Ruby conference, the focus on connecting Ruby startup founders with engineers, showcasing new companies building with Rails, and fostering a pragmatic community centered on growth and innovation. Links: San Franci…

1
Module extend self 4:55

30d ago4:55

4:55

Using extend self inside a Ruby module makes all of its instance methods callable directly on the module itself, which is useful when you want a collection of utility-style methods without needing to instantiate an object.By Chris Oliver

1
274 - Matthew Ford, CEO/CTO at Bit Zesty 55:48

1M ago55:48

55:48

In this episode I talk with Matthew Ford about AI-assisted coding at BitZesty. We discuss how AI speeds up development while requiring human oversight, the risks of "vibe coding," why automated testing remains critical, and how AI changes but doesn't replace fundamental software development practices like version control and architecture decisions.…

1
273 - Steve Ruiz, Founder of tldraw 1:02:42

1M ago1:02:42

1:02:42

In this episode I talk with Steve Ruiz about creating TLDraw, an open-source canvas SDK. We discuss the intersection of design and engineering, managing complexity through abstractions, state machines, and how multiple rewrites helped him discover the core problems. Steve shares insights on building developer tools and solving difficult UI challeng…

1
Miguel Conde & Peter Compernolle: Inside Gusto’s Rails Biolith 1:32:34

1M ago1:32:34

1:32:34

In this episode of On Rails, Robby is joined by Miguel Conde and Peter Compernolle from Gusto, where they work on a "biolith"—two distinct Rails monoliths serving 600+ engineers. Peter leads the HIPAA-compliant benefits domain, while Miguel is extracting the time product from the main monolith. They explore how Gusto identifies boundaries, manages …

1
272 - Anthony Eden, Founder of DNSimple 1:02:36

2M ago1:02:36

1:02:36

In this episode I talk with Anthony Eden about building DNSimple, a DNS provider and domain registrar. We discuss his 25 years in the domain industry, technical challenges, and why specialized niches create natural competitive moats. DNSimple Anthony Eden on LinkedIn [email protected] Nonsense Monthly…

1
Alexander Stathis: Scaling a Modular Rails Monolith at AngelList 1:28:51

2M ago1:28:51

1:28:51

In this episode of On Rails, Robby is joined by Alexander Stathis, a Principal Software Engineer at AngelList, where Rails powers complex investment, accounting, and banking business logic across a modular monolith structure. They explore how AngelList maintains conceptual boundaries in their codebase, uses gradual typing to influence their Ruby st…

1
Deploying Rails 8 with Hatchbox 31:15

2M ago31:15

31:15

Let's look at how we can easily deploy a Rails 8 application using the solid trifecta of gems with Hatchbox.By Chris Oliver

1
271 - Hotwire with Radan Skorić 1:12:23

3M ago1:12:23

1:12:23

By Jason Swett

1
Florent Beaurain: Optimizing Rails Tests at Doctolib Scale 1:18:09

2M ago1:18:09

1:18:09

In this episode of On Rails, Robby is joined by Florent Beaurain, a longtime Rails engineer at Doctolib, home to one of the largest Rails monoliths in Europe with over 3 million lines of code and 400+ engineers. They explore how Doctolib’s team tackled massive test suite performance issues, including cutting one engine’s test time from seven minute…

1
Rails 8.1 Local CI 7:38

3M ago7:38

7:38

By Chris Oliver

1
270 - AI with Daniel Nastase 1:02:05

3M ago1:02:05

1:02:05

In this episode, I discuss AI with Daniel Nastase, covering Daniel's journey from building neural networks from scratch to understanding embeddings and vector databases. We explore the limitations of current AI learning models versus explanation-based reasoning, and discuss practical AI applications including agents and voice interfaces for program…

1
269 - Cody Norman, Founder of Spot Squid for Tattoo Shops 1:15:13

3M ago1:15:13

1:15:13

In this episode I talk with Cody Norman about his journey from economics to programming, his tattoo shop management software SpotSquid, and lessons from building products for non-technical users. We discuss market challenges, customer development strategies, and Cody's path to conference speaking. CodyNorman.com Spot Squid Nonsense Monthly SaturnCI…

1
268 - Joel Drapper 1:35:46

3M ago1:35:46

1:35:46

In this episode I talk with Joel Drapper about open source development, the joy of coding without constraints, AI tools like GitHub Copilot, and our shared discomfort with the phrase "duplication is better than the wrong abstraction." We explore abstraction, technical debt versus "technical poison," and our mutual search for high-quality work envir…

1
267 - Upcoming Ruby Events with Jim Remsik, Founder of Flagrant 54:12

3M ago54:12

54:12

In this episode I talk with Jim Remzick about how AI has affected the job market, the value of in-person networking, and XO Ruby, Jim's series of regional Ruby conferences happening across the US. XO Ruby Flagrant Nonsense MonthlyBy Jason Swett

1
266 - Hotwire Native with Joe Masilotti 1:18:44

3M ago1:18:44

1:18:44

In this episode, I talk with Joe Masilotti about his new book on Hotwire Native, which lets Rails developers build mobile apps using web views with native functionality. We explore the writing process, consulting approaches, client engagement strategies, and how both of us find clients through speaking and writing. Hotwire Native for Rails Develope…

1
265 - Software Design with Paul Hammond 1:16:56

4M ago1:16:56

1:16:56

In this episode, I chat with Paul Hammond about effective testing strategies, the joy of working with well-designed TDD systems, and how synchronous collaboration improves code quality. We examine what true agility means and how technical excellence enables fearless releases and sustainable development. Feedback-Driven Development Paul Hammond on L…

1
Hilary Stohs-Krause: Scaling Rails with Small Wins 1:27:38

3M ago1:27:38

1:27:38

In this episode of On Rails, Robby is joined by Hilary Stohs-Krause, a Senior Software Engineer at Red Canary. They explore how engineering teams approach everyday performance work, from small Active Record optimizations to larger architectural decisions. Hilary shares insights from Red Canary's journey switching from React to Rails' native Hotwire…

1
264 - Dan Moore, Principal Product Engineer at FusionAuth 1:09:44

4M ago1:09:44

1:09:44

In this episode I talk with Dan Moore from FusionAuth about authentication solutions, testing strategies, and when to skip tests based on risk and cost factors, then dive into philosophical discussions about experience versus knowledge, objective versus subjective programming practices, and imperative versus declarative coding approaches. FusionAut…

1
Ruby Pattern Matching 16:01

4M ago16:01

16:01

In this episode, we will be looking at pattern matching in Ruby which lets you check the structure of data and save parts of it into variables.By Chris Oliver

1
Ryan Stawarz & Austin Story: Inside Doximity’s 15-Year Rails Monolith 1:11:54

4M ago1:11:54

1:11:54

In this episode of On Rails, Robby is joined by Ryan Stawarz and Austin Story from Doximity, where Ruby on Rails has powered the core of their platform for over 15 years. The trio digs into how a single Rails monolith has evolved to support 100+ engineers and a mobile-first experience for millions of healthcare professionals. From front-end framewo…

1
263 - Gayle Laakmann McDowell, Author of Cracking the Coding Interview 58:46

5M ago58:46

58:46

In this episode I talk with Gayle Laakmann McDowell, author of Cracking the Coding Interview. We discuss coding interviews as well as the current state of the job market and economy. Cracking the Coding Interview gayle.com Nonsense MonthlyBy Jason Swett

1
262 - Michael Lubas, Founder of Paraxial.io 45:28

5M ago45:28

45:28

In this episode I talk with Michael Lubas, founder of Paraxial, a software security product for Ruby on Rails applications. We discuss his background in both development and penetration testing, and his recent creation of GemShop - a deliberately vulnerable Rails 8 e-commerce application designed to teach developers about web security through hands…

1
Nadia Odunayo & Scaling Rails for Millions of Users as a Solo Dev 54:10

5M ago54:10

54:10

In this episode of On Rails, Nadia Odunayo, founder and solo developer of The StoryGraph, joins us to share what it really takes to build and maintain a Rails application used by over four million readers across web and mobile. We discuss lessons from launching a PWA, shifting to Turbo Native for cross-platform support, and navigating challenges li…

1
Jean Boussier & IO-Bound Misconceptions 1:05:16

5M ago1:05:16

1:05:16

Jean Boussier, Senior Staff Engineer at Shopify and member of the Rails Core team, joins Robby to dig into the performance realities behind modern Rails apps. They explore what it means to be IO-bound or CPU-bound, how Ruby’s Global VM Lock affects concurrency, and why "fast" is too vague to be useful. Jean explains why instrumentation is often the…

1
260 - Adam McCrea, Founder of Judoscale 58:50

6M ago58:50

58:50

In this episode I talk with Adam McCrea, founder of Judoscale, an autoscaler for Heroku and other platforms. Adam built Judoscale as a side project in 2016 and ran it part-time for five years before going full-time. We discuss developer marketing challenges, the difficulty of measuring marketing attribution, and building sustainable businesses. We …

1
Rosa Gutiérrez & Solid Queue 1:11:02

6M ago1:11:02

1:11:02

In this episode of ‘On Rails’, host Robby Russell (@planetargon) chats with Rosa Gutiérrez, Principal Programmer at 37signals, about the technical decisions behind Solid Queue - a database-backed job queue replacing Resque in their Rails apps. Rosa dives into why her team built Solid Queue, how it improves reliability, visibility, and maintainabili…

1
261 - Abstraction and Emergence with Jorge Manrubia 1:06:12

6M ago1:06:12

1:06:12

In this episode I discuss abstraction and emergence with Jorge Manrubia from 37signals. We explore how abstractions should hide distracting details while showing essential information, debate whether programming guidelines are subjective or objective, and examine how good explanations distinguish useful abstractions from poor ones. The conversation…

1
259 - Chris Chilek and John Cunningham, Founders of LegiPlex 55:12

6M ago55:12

55:12

In this episode I talk with Chris Chilek and John Cunningham of LegiPlex about their AI-enhanced legislative monitoring platform. We discuss how they identified the market opportunity, the technical challenges of processing government data, and their approach to building beyond simple AI prompts. LegiPlex…

1
258 - Errol Schmidt, CEO of reinteractive 1:04:48

6M ago1:04:48

1:04:48

In this episode, I talk with Errol Schmidt from Reinteractive about community involvement and sales strategies. Errol shares how he targets Salesforce by teaching their account executives about Heroku, positioning himself as the go-to expert. We discuss how developers are in sales whether they realize it or not, and the importance of relationship b…

1
Authentication Generator Test Helpers 13:59

7M ago13:59

13:59

The Rails Authentication generator is getting new test helpers. We'll take a look at how to use them with integration tests and how to extend them to work with system tests too.By Chris Oliver

1
How to use action_text-trix with Rails 4:11

7M ago4:11

4:11

Rails now ships the Trix editor as a separate gem (action_text-trix) instead of being included in ActionText. This allows for separate releases independently of Rails.By Chris Oliver

1
How to use Enumerable with Ruby Classes 11:50

7M ago11:50

11:50

Enumerable provides a suite of sorting, filtering, iterating functionality to any collection class in Ruby. It's easy to implement and use, so let's see how to use it.By Chris Oliver

1
257 - Colleen Schnettler, Creator of HelloQuery 1:03:01

7M ago1:03:01

1:03:01

In this episode, Colleen Schnettler discusses her startup HelloQuery, which allows non-technical people to query databases using natural language. She explains her marketing approach for growing the business, including her LinkedIn outreach system and focus on finding the right niche in the crowded AI space. Colleen also shares insights about her n…

1
256 - Dave Farley, Author of Modern Software Engineering 1:08:49

7M ago1:08:49

1:08:49

In this episode I talk with Dave Farley about how good software engineering prioritizes making code easy to change, since we inevitably need to revise our systems as requirements evolve. Dave also shares stories from building ultra-fast financial trading systems, where his team had to repeatedly rethink their architecture to meet performance demand…

1
255 - Ghost Engineers with Yegor Denisov-Blanch and Simon Obstbaum 56:58

8M ago56:58

56:58

In this episode I talk with Yegor Denisov-Blanch and Simon Obstbaum about their Stanford research on developer productivity. They share findings about "ghost engineers" (9.5% of developers who do minimal work), discuss challenges in measuring engineering output versus productivity, and explain their data-driven approach to software engineering asse…

1
254 - Amanda Perino, Executive Director of The Rails Foundation 1:12:28

8M ago1:12:28

1:12:28

In this episode, Amanda Perino, Executive Director of The Rails Foundation, discusses the foundation's mission to promote Rails through events like Rails World, focusing on finding unique venues that create special conference experiences. She shares insights about venue selection, sponsor negotiations, and the foundation's efforts to showcase Rails…

1
How to add Lazy Load Hooks to Rails Plugins 13:21

8M ago13:21

13:21

To provide clean integrations with Rails plugins, we can use lazy load hooks to add callbacks for when classes are loaded.By Chris Oliver

1
How to use CodeMirror with ImportMaps 11:37

9M ago11:37

11:37

Learn how to use the CodeMirror editor in your browser using Importmaps.By Chris Oliver

1
253 - Dave Thomas, Author of The Pragmatic Programmer and Sin City Ruby 2025 Keynote Speaker 1:27:12

9M ago1:27:12

1:27:12

In this podcast episode I talk with Dave Thomas, co-author of The Pragmatic Programmer and Sin City Ruby 2025 keynote speaker, who discusses his upcoming book Simplicity and how software development has become unnecessarily complex. Dave and I explore how developers can regain control by questioning established practices, trusting their intuition w…

1
252 - What is Good Code? with Jerad Gallinger 1:10:10

9M ago1:10:10

1:10:10

In this episode, I talk with Jared Gallinger about what makes good code. We agree that code must first work correctly, but real quality comes from being understandable and maintainable. We discuss how different code requires different quality standards - throwaway scripts can be messy while core systems need careful design. We explore how UI design…

1
251 - Databases at Scale with Prarthana Shiva, Sin City Ruby 2025 Speaker 45:08

10M ago45:08

45:08

In this episode of Code with Jason, host Jason Swett interviews Prarthana Shiva, a senior software engineer at NexHealth, who shares how her team is handling massive database scaling challenges. Prarthana explains their PostgreSQL database's growth to 24 terabytes (with projections to triple within a year) and details their innovative solutions inc…

1
250 - Nick Schwaderer 1:08:14

10M ago1:08:14

1:08:14

This podcast episode features a lively conversation between Jason Swett and Nick Schwaderer, covering a range of topics from Thanksgiving traditions to Ruby conferences, personal philosophies, and even the idea of starting a long-format, freeform podcast. They discuss their approaches to cooking turkey, the quirks of different Thanksgiving side dis…

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Ruby On Rails Testing Podcasts

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