Open to opportunities

Kaan Fırat

@kaanfrat

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Senior Android engineer crafting scalable Kotlin & Jetpack Compose apps from 0-to-1.

Czechia

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What I'm looking for

I’m looking for a team where I can own 0-to-1 mobile product delivery, drive architecture and testing quality, and build with Kotlin/Compose. I want modern Android practices and room to expand into KMP/full-stack work.

I’m a Senior Android Engineer with 5+ years of experience delivering scalable mobile products across e-commerce, IoT, and cross-platform environments. I’m known for hands-on ownership in 0-to-1 product development, with a strong focus on quality-focused delivery.

I build with Kotlin and modern Android architecture, especially Jetpack Compose, MVVM, and reactive state management using Coroutines and Flow. In my recent role, I served as Android lead for 8 months, supporting architecture, feature delivery, testing, and release processes across both 2-week sprint and Kanban workflows.

I’m particularly proud of reliability and delivery outcomes: I resolved all Firebase Crashlytics issues on Android, reducing production-reported crashes to zero. I also strengthened engineering quality with 40% unit test coverage, end-to-end UI testing, and CI/CD test execution on every dev-to-main merge.

Beyond Android, I’ve built Kotlin Multiplatform solutions from a shared Compose codebase and implemented full-stack backend flows. Projects included integrating Gemini AI API for dynamic story generation and delivering production-ready chat backends with Kotlin/Spring Boot, WebSocket messaging, and secure authentication patterns.

Experience

Work history, roles, and key accomplishments

Senior Android Developer

Thecodebaseio

Dec 2023 - Jul 2025 (1 year 7 months)

Built a 0-to-1 Android e-commerce application, contributing across architecture, feature delivery, testing, and Google Play release. Served as Android lead and resolved all Firebase Crashlytics issues to reduce production-reported crashes to zero while improving unit test coverage to 40% and running CI/CD tests on every dev-to-main merge.

Kotlin MVVM Coroutines Flow Firebase Crashlytics Unit Testing UI Testing CI CD Android Architecture

Android Developer

4A Labs

Sep 2022 - Dec 2023 (1 year 3 months)

Contributed to CarrefourSA’s e-commerce Android app, supporting a grocery retailer with 5M+ total downloads and nationwide retail operations. Delivered and improved shopping journeys (dashboard, PDP, location, profile), built Salesforce-integrated customer flows and QR-based payment experiences, and migrated legacy Java to Kotlin to modernize maintainability across multiple screens.

Kotlin MVVM Retrofit Push Notifications Salesforce Integration Java Kotlin

Android Developer

Vanemar

Dec 2021 - Oct 2022 (10 months)

Owned end-to-end Android feature delivery as the sole developer for a smart boat systems company, covering REST API integration, UI implementation, and map-based product experiences. Integrated IoT device control and monitoring workflows (water control, thermal cameras, electrical control units) and implemented Google Maps animations and route history visualization while translating Zeplin designs

Kotlin Java Retrofit OkHttp Google Maps Custom Views

Software Developer

University4Society

May 2020 - Aug 2020 (3 months)

Selected for a 4-month acceleration program and built an MVP from concept to delivery, designing product interfaces in Adobe XD and Figma and developing the first Android version in Java. Implemented Firebase Authentication and Realtime Database, built a responsive landing page, and set up Retrofit + Gson for API integration and JSON parsing.

Java Firebase Authentication Firebase Realtime Database Retrofit API Integration Adobe XD

Android Developer

Penti

Contributed to Penti’s Android retail app with 1M+ total downloads by modernizing a legacy codebase toward Kotlin and Jetpack Compose. Improved maintainability and runtime stability using more reactive UI patterns and by resolving Firebase Crashlytics issues.

Kotlin Jetpack Compose Coroutines Flow Firebase Crashlytics Maintain