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Android engineer and accessibility-focused software developer with end-to-end delivery experience as an independent contractor. Strong background in Kotlin, Jetpack Compose, coroutines/Flow, Room, Retrofit, and Hilt—often applying Clean Architecture, MVVM, and MVI patterns. Led accessibility initiatives across production banking apps and built fully unit-tested features (including re-authentication and validation use cases). Also improved analytics accuracy and reliability for BLE backgrounding by migrating and reworking event pipelines.…Android engineer and accessibility-focused software developer with end-to-end delivery experience as an independent contractor. Strong background in Kotlin, Jetpack Compose, coroutines/Flow, Room, Retrofit, and Hilt—often applying Clean Architecture, MVVM, and MVI patterns. Led accessibility initiatives across production banking apps and built fully unit-tested features (including re-authentication and validation use cases). Also improved analytics accuracy and reliability for BLE backgrounding by migrating and reworking event pipelines.

Kristina Knežević

App Developer, Programmer, Web Developer, +1

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Android engineer and accessibility-focused software developer with end-to-end delivery experience as an independent contractor. Strong background in Kotlin, Jetpack Compose, coroutines/Flow, Room, Retrofit, and Hilt—often applying Clean Architecture, MVVM, and MVI patterns. Led accessibility initiatives across production banking apps and built fully unit-tested features (including re-authentication and validation use cases). Also improved analytics accuracy and reliability for BLE backgrounding by migrating and reworking event pipelines.…Android engineer and accessibility-focused software developer with end-to-end delivery experience as an independent contractor. Strong background in Kotlin, Jetpack Compose, coroutines/Flow, Room, Retrofit, and Hilt—often applying Clean Architecture, MVVM, and MVI patterns. Led accessibility initiatives across production banking apps and built fully unit-tested features (including re-authentication and validation use cases). Also improved analytics accuracy and reliability for BLE backgrounding by migrating and reworking event pipelines.

Available to hire

Android engineer and accessibility-focused software developer with end-to-end delivery experience as an independent contractor. Strong background in Kotlin, Jetpack Compose, coroutines/Flow, Room, Retrofit, and Hilt—often applying Clean Architecture, MVVM, and MVI patterns.

Led accessibility initiatives across production banking apps and built fully unit-tested features (including re-authentication and validation use cases). Also improved analytics accuracy and reliability for BLE backgrounding by migrating and reworking event pipelines.

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Work Experience

Freelance Software Engineer at Appotekka

October 5, 2025 - Present

- 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

Android Engineer at Cinnamon

March 14, 2022 - July 2, 2025

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.

Junior Android Engineer at Notch

July 12, 2021 - March 13, 2022

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.