ATDD Accelerator

From firefighting regression bugs to reliable delivery.

Manual regression testing is painfully slow, bugs keep escaping to production, and teams burn ~30% of their time fixing them. The ATDD Accelerator is a self-paced, text-based course that teaches you the discipline that ends the cycle — learn it at your own pace.

Get Access See the curriculum
Self-paced · text-based · practise on a sandbox
Text-based lessons
Two written courses you read and apply at your own pace. There's nothing to watch and no fixed time to set aside.
Java, .NET & TypeScript
Reference implementations in Java, .NET, and TypeScript — ready to follow in your own stack.
An open-source sandbox
You practise ATDD hands-on on a sandbox — an open-source project — applying each step as you learn it.
Built for legacy code
Aimed squarely at the tangled, untested code you actually ship — not clean textbook katas.
The Problem

Manual QA isn't the problem.
It's the root cause.

Ship, test, report a bug, fix, retest — and round it goes. Each loop is slower than the last, regression bugs creep back in, and rework costs pile up until delivery grinds to a crawl.

Manual regression is painfully slow

Every release means another manual pass — ship, test, report, fix, retest. The cycle stretches longer each time, and predictable delivery slips away.

Bugs escape to production

Manual QA can't keep pace with the codebase. Regression bugs slip through to production, and your users are the ones who find them.

~30% of dev time goes to regression

Teams spend roughly a third of their time fixing regression bugs instead of building features — capacity quietly drained away.

The fix isn't more manual testing. It's catching regressions automatically — before they ship.

The Approach

Feedback in an hour, not weeks.

Acceptance Test-Driven Development flips the order of work.

You write a system-level acceptance test describing the behaviour you want before you implement the story. That test becomes both the specification and the safety net — so instead of waiting weeks for a manual regression pass, you get fast, reliable feedback within an hour, every time you run the suite.

That's what the ATDD Accelerator teaches.

The Curriculum

Two courses,
one path.

Two self-paced, text-based courses take you from a trustworthy delivery pipeline to full ATDD — practised hands-on on an open-source sandbox project. Read, apply, and move on when you're ready; there's nothing to watch and no schedule to keep up with.

Course 01

Pipeline Accelerator

Build a fast, reliably green delivery pipeline — the safety net that ATDD runs on.

  • 01Introduction
  • 02Commit Stage
  • 03Acceptance Stage
  • 04QA Stage
  • 05Production Stage
Course 02

ATDD Accelerator

Acceptance testing and the architecture that makes it hold on real, legacy code.

  • 01Getting Started
  • 02Smoke Tests
  • 03E2E Tests
  • 04Architecture — Clients
  • 05Architecture — Drivers
  • 06Architecture — Channels
  • 07Architecture — Use Case DSL
  • 08Architecture — Scenario DSL
  • 09Architecture — External Stubs
  • 10Acceptance Tests
  • 11Contract Tests
  • 12ATDD — Acceptance Criteria
  • 13ATDD — Acceptance Tests
  • 14ATDD — Contract Tests

All lessons are text-based — there's nothing to watch, and no fixed time to put aside; you read and apply at your own pace. This is the current curriculum; we may update or change it over time.

Who It's For

Built for teams stuck in
legacy code.

Self-guided ATDD adoption usually ends the same way: tests bound to the implementation, an unmaintainable suite, and eventual abandonment. The Accelerator gives you the guided path instead — so the tests you write are ones you can actually keep.

If that's you, start here.

Get Access

Choose your option.

Limited time The Premium option now includes lifetime Q&A and lifetime sandbox review — while the offer lasts.

Basic

Course

The full self-paced course, yours to work through at your own pace.

€300 one-time

+ VAT · company-expensable

Get Basic
  • Both text-based courses — Pipeline + ATDD
  • Reference implementations in Java, .NET & TypeScript
  • Hands-on open-source sandbox to practise on
  • Built for real legacy code
  • Lifetime access — the course is yours to keep
Recommended
Premium

Course + Project

The full course, plus async Q&A support and a personal 1:1 review of your sandbox work.

€1,000 one-time

+ VAT · company-expensable

Get Premium
  • Everything in Basic
  • Async Q&A support in a chat group
  • Personal 1:1 sandbox review — async written feedback
  • Lifetime Q&A
  • Lifetime sandbox review
For teams
Group

Bringing a team?

Put your whole team on one invoice and expense it once, instead of each engineer buying separately. A volume discount grows with headcount.

Volume discount

On top of the per-seat price

  • 3–4 seats10% off
  • 5–9 seats15% off
  • 10+ seats20% off
Book a call to discuss

Every option includes lifetime access to the course — it's yours to keep. All options are one-time payments; a company invoice (name + VAT, EU reverse-charge where valid) is available at checkout — easy to expense.

Expensing it to your company?

Add your company name and VAT ID at checkout for a proper invoice, ready to claim from a learning & development or training budget. The whole course is a one-time, expensable cost — no subscription to justify.

About Your Instructor

Valentina
Jemuović

Technical Coach at Optivem. Years spent helping engineering teams across Europe and North America get tangled, untested code under control — and ship safely, faster.

"Teams aren't stuck for lack of theory. They're stuck because no one's shown them how to apply it to real, legacy code."

She built the ATDD Accelerator to teach that method directly — acceptance testing and the pipeline and architecture that make it hold on production code — now as a self-paced course you can work through on your own.

ATDD TDD CI/CD Hexagonal Architecture Clean Architecture Legacy Code
Valentina Jemuović, Technical Coach at Optivem
FAQ

Common questions.

Is this live or self-paced?
Fully self-paced. There are no live sessions, cohort dates, or enrollment deadlines — you work through the courses whenever it suits you.
What format are the lessons?
Text-based, written lessons — there's nothing to watch and no fixed time to set aside. You read and apply at your own pace. Each lesson comes with reference implementations in Java, .NET, and TypeScript, and you practise on an open-source sandbox project — never your real production code.
What's in the curriculum?
Two courses: the Pipeline Accelerator (5 modules) builds a trustworthy delivery pipeline, and the ATDD Accelerator (14 modules) covers acceptance testing and the architecture behind it. This is the current curriculum and may be updated or changed over time.
What language and stack?
We use Java as the primary language throughout the lessons, with reference implementations in Java, .NET, and TypeScript. The method itself is language-agnostic — acceptance tests, test design, and getting legacy code under test apply across stacks.
Do I need prior TDD experience?
No. The course starts from the fundamentals and builds up to full ATDD, practised on an open-source sandbox project. If you've written tests before you'll move faster, but it isn't assumed.
Do I work on my real-life project?
No — you practise on a shared open-source sandbox project, not your own or your company's code, so there's nothing proprietary involved and no risk to production. The techniques are built for exactly the legacy problem you're facing — getting tangled, untested code under test without a big-bang rewrite — so you apply the same approach to your real codebase afterward.
How does the sandbox review work? (Premium)
It's a personal 1:1 review of the work you've done on the sandbox project, delivered as written feedback — async, not a live call — so you can act on it on your own schedule.
What's the difference between the options?
Every option includes lifetime access to the course. Basic is course access on its own. Premium adds async Q&A support in a chat group and a personal review of your sandbox work — plus, for a limited time, lifetime Q&A and lifetime sandbox review. Bringing a team? The Group option puts everyone on one invoice with a volume discount that grows with headcount.
Can I expense it to my company?
Yes — add your company name and VAT ID at checkout for a proper invoice (EU reverse-charge applies where valid), ready to expense to an employer. It's a one-time cost, not a subscription.
Get Started

Stop firefighting.
Start delivering.

Learn ATDD at your own pace on an open-source sandbox — then bring the safety net to the code you ship.

Get Access See the curriculum →