Volkan Öztürk

Senior Java Developer

volkanozturk.dev

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Based in the Netherlands

Volkan Öztürk
  • Home
  • Writing
  • Journey
  • Bookmarks

Based in the Netherlands

Writing

Software engineering, everyday notes, and things I find worth writing about.

Java

Java Experience Beyond the Code

Eight production situations where better questions matter more than quick fixes, from slow APIs and connection pools to retries and duplicate messages.

Engineering·13 Sep 2026·7 min read

  • Java
  • Production
  • Architecture

From Istanbul to a New Home

Why we moved from Istanbul to the Netherlands, what we still miss, and how becoming parents changed the way we think about that decision.

Life·13 Sep 2026·2 min read

  • Netherlands
  • Moving Abroad
  • Family

Kafka Consumer Lag: When Should You Worry?

Consumer-group lag is usually an offset gap, not a delay in seconds — what matters is whether it drains, how long it stays up, and whether the delay fits what the service promises.

Engineering·12 Sep 2026·3 min read

  • Kafka
  • Consumers
  • Operations

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