Senior Software Engineer, GAIN Medya
I led a team of 3 engineers on an OTT streaming platform serving millions of users in Turkey, across HLS and DASH, Apple TV, and Android TV, on 2-week Agile sprints.
The numbers I'm proud of: regression bugs down 40% with real unit and integration testing, ANR rate down to 0.09% after finding deadlocks in concurrent code paths, and QA cycle time cut 30% with Appium for cross-platform UI tests. I watched all of it through Crashlytics, Firebase Performance, and Mixpanel.