Let’s Not Break a System That Works: An Eight-Year Hosting Invoice
An eight-year hosting price increase, tested against both inflation and the exchange rate. A price that sat at $97 for four years rose 81% in two. Neither explains it.
Enis Kurtay YILMAZ
How to Lose a Customer: 140,000 TL, a Date of Birth and 20 Days
A pre-approved 140,000 TL limit, a customer ready to buy, and one date-of-birth error. How bad customer experience gets built: a 20-day story seen through an architect's eyes.
A Reference Number and an Observability Story
What do you lose when a reference number is never mapped to a correlationId? A short incident story about observability, on-call and incident management.
Remote Work and Cognitive Load
This article is adapted from a post I shared on LinkedIn. I can say it comfortably on behalf of our own company and teams: we work fully remotely. Even more interesting, we started this back in 2018 — before the…
An In-Team AI Business-Analyst Agent: Automatically Enriching Task Scope
Note: An in-team initiative; process and tool names are kept generic. Summary We built an AI agent that acts like a business analyst inside our team. It is triggered automatically when a task is assigned to it or when a…
There Is No Such Thing as “We Will Delete It Later”
This article is adapted from a post I shared on LinkedIn. A test email address added into the code with a “we’ll clean it up later”… Spoiler: it was never cleaned up. And it’s not even in the database; it…
When JSON Fights You: Use a Boolean, Not “1”
This article is adapted from a post I shared on LinkedIn. When I see JSON like this, I feel like I'm solving Sudoku: isCommercial: “1” → there is a thing called Boolean. isLikeCommercial → what is this supposed to mean,…
Technical Vision and Developer Tools: The Invisible but Critical Foundations
This article is adapted from a post I shared on LinkedIn. In the consulting projects we take on and the organizations we collaborate with, one pattern has become painfully clear: a widespread lack of technical vision. In much of the…
Test Environments Should Be as Reliable as Production: A 150M-Record Integration
Note: This case study has been anonymized to protect client and company confidentiality. Summary In an integration project with a large marketplace — where 150 million records each had to be properly accounted for — the biggest blocker to delivery…
What Is Layered Architecture? A C# Example
This article was originally published on Medium. With every project or every idea, this is the first thing that comes alive: “How should we build it? Data comes from here, I set it from there, it’s easy to implement on…