Volkan Gülen
Senior Software Engineer
Backend infrastructure & distributed systems
I have 10 years of experience designing and maintaining backend architectures — scalable, secure, high-performance systems across serverless, microservices, and monoliths, on-prem and cloud, in TypeScript, Python, C#, and Java.
Recent writing
View all →High Availability isn't a feature — it's a mindset
25 Mar 2026Every time you fix a Single Point of Failure, another one appears. Here's how to chase it all the way down — and what's waiting at the bottom.
InfrastructureDistributed SystemsHA6 min
drwxrwsr-t volkan devs folder 12345 Dec 9 01:23 | what is this s--t?
09 Dec 2024Let's see how special chmod bits to manage permissions and privileges in Unix systems work, with practical examples to ensure safe usage.
UnixACL4 min