Kristina Knežević

- deliver client software projects end-to-end as an independent contractor, handling scoping, vendor selection, technical delivery, and client communication across the full engagement lifecycle

Led the accessibility workstream for the BAWAG white-label banking apps (700K+ combined downloads, 4.6 stars), defining the technical approach and coordinating delivery across the Android team. Built the credential-input screen that requires step-up re-authentication before an app-PIN change, delivered end to end as Fragment, ViewModel, and MockK-based unit tests. Implemented a reusable BIC and bank-code validation use case enforcing IBAN country-code matching, fully unit-tested, and integrated it into the foreign-payment flow following Clean Architecture. Migrated the Hyperice connected-device app to Amplitude’s current SDK, fixing cross-method user-ID merging and missing, duplicated, and mis-ordered tracking events to improve data accuracy. Eliminated silent loss of BLE disconnect events during app backgrounding by migrating LiveData to buffered Coroutines Channels exposed as Flow, collected lifecycle-aware in Compose across multiple devices.

Developed an internal logistics tool in Kotlin with a View-based UI, integrating BLE beacon signals and barcode scanning to enable real-time package location tracking across a factory floor.