Test Double

@testdouble
530 Followers
246 Following
569 Posts
Our mission is to improve how the world builds software. And we do that by building both great software and great teams. We're a software development agency offering consulting services in custom software development, DevOps and product delivery. We help technology leaders get to a better place with software built to last. Legacy systems are unwound and detangled. Teams emerge happier and healthier. Leaders get maintainable software at a sustainable pace.
Websitehttps://testdouble.com
Contacthttps://testdouble.com/contact
Careershttps://testdouble.com/careers
Agencyhttps://testdouble.com/agency

"In a world where every meeting has an agenda, sometimes the most valuable thing we can offer is purposeless presence."

Tyler Sloane's take on building real connections in remote work is worth the read: https://link.testdouble.com/e704e9

Python devs, is this familiar: Your team writes beautiful snake_case code, but every external API wants camelCase.

You could:
- Pollute your codebase with non-Pythonic naming
- Write manual conversion layers
- Live with the friction

Or you could use Pydantic's field aliases to solve this once and for all.

New guide: How to handle non-Pythonic naming conventions seamlessly 👇
https://link.testdouble.com/e357d1

#Python #Pydantic

AI can pattern-match. It can’t always tell you when the pattern doesn't apply ... because it doesn’t always have (and sometimes loses) context.

Senior engineers and product managers who've shipped real products, untangled real legacy systems, and made real calls under pressure bring something different to the table.

Test Double's free office hours give you access to exactly that. No strings attached.

We can help you discern when patterns actually apply.

https://link.testdouble.com/a59af5

Gifthealth hit 11x order volume growth in just over a year. We embedded 19 consultants across engineering, product, and data to help them scale amidst hyper growth without breaking their foundation.

Full field report: https://link.testdouble.com/959cf9

For decades, we've optimized code for human readers. Agentic coding is forcing a renegotiation of what "craft" means. VP of Delivery @DocOnDev argues that's shifting emphasis from code-level readability to system-level observability and problem-space incrementalism.

https://link.testdouble.com/310109

You committed the fix. But everything you learned along the way went nowhere: wrong docs, hidden schema, subtle gap in error handling. Staff Software Consultant Rick Reilly shares a practice borrowed from TDD's red-green-refactor loop, which gives that hard-won knowledge somewhere to land. https://link.testdouble.com/0ff408

This blog breakdown covers real field reports from rewrite vs refactor decisions—including why paths were chosen for a specific situation. (Because there are usually multiple paths you could go down.)

Great read for devs trying to understand pros and cons of this choice for the first time. https://link.testdouble.com/882169

AI will tell you your architecture looks great. It will validate and walk you confidently into a dead end.

When you need someone to push back instead of agree ... that's what our free pairing sessions are for.

Turn the dumpster fire into something good. We take a pragmatic approach to using AI, and can help you get the most out of it.

https://link.testdouble.com/a59af5

Microservices scaling reality: MedTech with 50+ services, 235k daily requests

The Mission: Streamline and balance speed with quality

The Fix: Strategic simplification

The Results: 50% faster deployments, resolutions in minutes

Embedded advisory solving problems alongside your team > consultant recs that disappear

VP of Delivery @DocOnDev reflects on agentic coding as the third real sea change in software development. After PCs (decade-long shift) and the web (five years), the timeline keeps compressing.

The difference this time: prior shifts expanded the profession. This one contracts it.

https://link.testdouble.com/42d1f0