Murat Bahadır Kayıhan
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Architecting digital sovereignty with high performance mobile nodes and decentralized backend systems.
I’ve seen enough “revolutionary” tech stacks to know that boring code usually works best.
While the industry chases the next shiny toy, I focus on building mobile experiences that don’t lag and backends that don’t crash.
I don’t write code to look smart; I write it so I can sleep at night without server alerts.
Simple, scalable, and surprisingly rare.
Designing for Failure in Physical Systems
"When reliability matters more than elegance."
The ConstraintWe were scaling a distributed platform requiring real time interaction with physical hardware. The bottleneck was network reliability. Even small connectivity drops translated into hard user failures at the moment of action.
The DecisionInstead of adding complex retry logic (which would only increase system fragility), I engineered a proximity based fallback layer. We shifted the 'source of truth' to the physical edge. If the cloud failed, the app leveraged local hardware verification (implemented via NFC) to authorize access securely.
The OutcomeThe system maintained high availability during critical growth phases. It proved that sometimes the best code is the code you write to eventually delete.
Production Toolbox
The ecosystem I live in. Built for control, efficiency, and reliability.
The Terminal
Efficiency comes from scripting, not clicking. I prefer the precision of the CLI.
The Workbench
Native work requires native power. A curated environment for deep focus.
Data & Delivery
Managing APIs reliably. Bruno for versioned collections, curl for raw CLI inspection.
Engineering Principles
How I make decisions when systems are under pressure.
01.Reliability over Novelty
Technology is chosen for survival, not hype. I prefer boring, battle tested solutions that have survived production at scale over the latest trends.
02.Complexity is Debt
Every new library, microservice, or abstraction layer is a liability. The goal is always to keep the surface area small and the logic transparent.
03.Observability is Trust
If a system can't report its health, it is already broken. Logging, metrics, and tracing are not "nice to haves"; they are the definition of production.
04.Temporary means Temporary
"Permanent workarounds" are forbidden. If a quick fix is required, it must be documented, tracked, and planned for removal. No hidden ghosts in the code.