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Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
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Launch modern product orgs
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Renovate legacy software systems
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DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
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Build tech & product teams
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Accelerate Quality Software
Software Delivery, DevOps, & Product Delivery
Maximize Software Investments
Product Performance, Product Scaling, & Technical Assessments
Future-Proof Innovative Software
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About
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What's a test double?
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Great code for great causes
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Pydantically perfect: A beginner’s guide to Pydantic for Python type safety

Introducing Pydantic, a powerful library for type-safe data models in Python. Let’s go through the creation of a simple Pydantic model and the benefits provided.

Gabriel Côté-Carrier
Gabriel Côté-Carrier
Software tooling & tips
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Developers
C# and .NET tools and libraries for the modern developer
Patrick Coakley
Patrick Coakley
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Leadership
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Leadership
Turning observability into a team strength without a big overhaul
Gabriel Côté-Carrier
Gabriel Côté-Carrier
Legacy modernization
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Developers
Developers
Developers
Why I actually enjoy PR reviews (and you should, too)
Robert Komaromi
Robert Komaromi
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Double Takes

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Double Takes

Whenever this kind of thing happens, the biggest mindset shift is not going from single tool to platform (though that's useful to translate to business use cases), it's what happens when you realize there's an entire ecosystem at play here. 🤯

Cathy Colliver

TIL you can use redirect.github.com in links to avoid a back reference being created on github from commits, comments, PRs, etc.

Jason Karns

Test-driven development is to programming what double-entry bookkeeping is to accounting.

Neal Lindsay

The fundamental character flaw of the software creator is not the misguided belief that they can solve any problem with software. Instead, it is the belief they can understand how their own software works before they create it.

Steve Jackson

We may need a SaaS appendix for Zawinski's law:

Any SaaS platform attempts to expand until it is a social network.
Matt Jones

Wow, 1 month for a rewrite seems a little aggressive.

Dustin Tinney
Financial terms every VP of Engineering should know
Leadership
Leadership
Leadership
Financial terms every VP of Engineering should know
As a VP of Engineering, understanding financial terms isn't just for show—it's your secret weapon for smarter decision-making. Dive into this glossary to get ahead.
Ed Frank
Ed Frank
Maximize software investment
budgeting
CapEx vs. OpEx: A guide for VP of Engineering to software budgeting
Leadership
Leadership
Leadership
CapEx vs. OpEx: A guide for VP of Engineering to software budgeting
Delve into the critical financial strategies of CapEx vs. OpEx with our comprehensive guide. Understand how these decisions impact not only your team, but also the broader organizational goals.
Ed Frank
Ed Frank
Maximize software investment
budgeting
Developers
Developers
Developers
Inside the decision room: How Standard Ruby updates its rules
The Standard Ruby maintainer team creates straightforward rules to boost code readability and reduce errors. Here's who keeps it up to date and how.
Camilo Payan
Camilo Payan
Software tooling & tips
ruby
standard-ruby
Leadership
Leadership
Leadership
Rails upgrade: Bug fixes and security support ending soon
As bug fixes and security support wind down for older Rails versions, now is the time to prioritize your Rails upgrade to safeguard your applications.
Kate McGinty
Kate McGinty
Rails upgrades
security
Consulting at Test Double: what each role entails
We’re rethinking software consulting with both equity and high-quality software in mind. Learn about what consulting looks like at Test Double and how we support growth and development.
Kate McGinty
Kate McGinty
Recruiting & careers
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DataConnect2024: Telling the data story
Here's a snapshot of what's going on in the world of data as a product, featuring insights from DataConnect 2024's inspiring women leaders.
Michael Toland
Michael Toland
Product management
data-science
data-engineering
Leadership
Leadership
Leadership
Consultant vs. FTE: When it pays to bet on a consultant
Caught in the consultant vs. full-time employee dilemma? Here's how hiring a consultant can transform your project's efficiency and drive innovation, and when it makes the most sense to do so.
Test Double Editorial Board
Test Double Editorial Board
Maximize software investment
budgeting
Developers
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How we delivered an API integration 7 weeks ahead of schedule
Here was our approach to deliver well-tested integrations quickly – and why APIs are products, too.
Shawn Leitner
Shawn Leitner
Accelerate quality software
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