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Thoughts on engineering, systems, and building things.

  • 2024-12-15

    Building at Scale: Lessons from Payment Systems

    What I learned designing and operating payment infrastructure that processes millions of transactions daily.

    systemspaymentsarchitecture
  • 2024-09-22

    On Writing Integration Tests That Actually Work

    Most integration tests are either too flaky or too shallow. Here is how I built a mocking framework that took coverage from 60% to 100%.

    testingengineeringjava

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