I help developers continuously deliver value with higher quality and less stress.

I teach/coach individuals and teams in technical practices and skills like DevOps, CI/CD, refactoring, TDD, clean code, emergent design, and evolutionary architecture.

I'm the creator of Intentional Commits and Git Fundamentals.

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Practice with my coding katas

• 📚📖 ISBN Kata
  A coding kata that focuses on design and TDD.
• 🛒🛍️ Shopping Cart Kata
  A coding kata that focuses on domain modelling and TDD.
• 🌡️ Temperature Kata
  A coding kata that focuses on encapsulation and simple design.
• 🪙🧾 Tax ID Kata
  A coding kata that focuses on encapsulation and domain-driven design.
• "42"🔄42 Integer Parser Kata
  A TDD kata, intended as the next step after being introduced to TDD with trivial katas like FizzBuzz.
• ⬛⬜♟️ Chess Kata
  A coding kata that focuses on applying TDD in an existing (unit-tested) code base.
• 📡👾 Mars Rover Kata
  An evolutionary coding kata where the requirements are revealed incrementally.
• ✂️🧬 Intentional Git Kata
  Conquer the fear of Git! Build your intuition. Create new habits. Get confident in your workflows.
• 💾💿 Data Size Kata
  A coding kata that focuses on domain-driven design, encapsulation, and reducing primitive obsession.
• XVII🏛️ Roman Numerals Kata
  A coding kata that focuses on design and TDD.
• 📄📜 Word Wrap Kata
  A coding kata that focuses on breaking down a tricky problem into bite-sized simpler problems.
• 3️⃣5️⃣ Evolutionary Fizz Buzz Kata
  An evolutionary coding kata where the requirements are revealed incrementally.
• 💪🧠 IDE Muscle Memory Kata
  Build awareness and muscle memory for quick actions, IDE-supported refactorings and keyboard-based navigation in your IDE.
• 💰💶 Money Type Kata
  A coding kata that focuses on encapsulation and simple design with TDD.