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Hi, I’m Koray Metin, a Senior Flutter Developer with over six years of experience delivering mobile applications and complex cross‑platform solutions. I specialize in offline-first architectures, fleet management solutions, real‑time communication, and multilingual apps, with a strong focus on clean code, scalable patterns, and delightful user experiences. I enjoy architecting robust Flutter applications using patterns like BLoC/Cubit, modular core libraries, and AI-assisted development tools to accelerate planning and delivery. I’ve led migrations, driven performance improvements, and built reusable UI components and cross‑platform capabilities to empower teams and elevate product outcomes.…Hi, I’m Koray Metin, a Senior Flutter Developer with over six years of experience delivering mobile applications and complex cross‑platform solutions. I specialize in offline-first architectures, fleet management solutions, real‑time communication, and multilingual apps, with a strong focus on clean code, scalable patterns, and delightful user experiences. I enjoy architecting robust Flutter applications using patterns like BLoC/Cubit, modular core libraries, and AI-assisted development tools to accelerate planning and delivery. I’ve led migrations, driven performance improvements, and built reusable UI components and cross‑platform capabilities to empower teams and elevate product outcomes.

Koray Metin

App Developer, Front-End Developer, Full Stack Developer, +2

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Hi, I’m Koray Metin, a Senior Flutter Developer with over six years of experience delivering mobile applications and complex cross‑platform solutions. I specialize in offline-first architectures, fleet management solutions, real‑time communication, and multilingual apps, with a strong focus on clean code, scalable patterns, and delightful user experiences. I enjoy architecting robust Flutter applications using patterns like BLoC/Cubit, modular core libraries, and AI-assisted development tools to accelerate planning and delivery. I’ve led migrations, driven performance improvements, and built reusable UI components and cross‑platform capabilities to empower teams and elevate product outcomes.…Hi, I’m Koray Metin, a Senior Flutter Developer with over six years of experience delivering mobile applications and complex cross‑platform solutions. I specialize in offline-first architectures, fleet management solutions, real‑time communication, and multilingual apps, with a strong focus on clean code, scalable patterns, and delightful user experiences. I enjoy architecting robust Flutter applications using patterns like BLoC/Cubit, modular core libraries, and AI-assisted development tools to accelerate planning and delivery. I’ve led migrations, driven performance improvements, and built reusable UI components and cross‑platform capabilities to empower teams and elevate product outcomes.

Available to hire

Hi, I’m Koray Metin, a Senior Flutter Developer with over six years of experience delivering mobile applications and complex cross‑platform solutions. I specialize in offline-first architectures, fleet management solutions, real‑time communication, and multilingual apps, with a strong focus on clean code, scalable patterns, and delightful user experiences.

I enjoy architecting robust Flutter applications using patterns like BLoC/Cubit, modular core libraries, and AI-assisted development tools to accelerate planning and delivery. I’ve led migrations, driven performance improvements, and built reusable UI components and cross‑platform capabilities to empower teams and elevate product outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Turkish

Fluent

English

Fluent

Work Experience

Senior Flutter Developer at Ximio B.V.

January 1, 2022 - Present

Architected and developed an offline-first vehicle navigation app for fleet management using Flutter; by integrating SQLite storage, Mapsforge offline mapping, and customized XML render themes. Led the centralized Flutter package implementing BLoC/Cubit patterns and built a multilingual, location-aware task management system with real-time communications for field operations; accelerated development with AI-assisted tools and delivered scalable, cross‑platform modules.

Flutter Developer at Ximio B.V.

February 1, 2019 - December 1, 2022

Led the migration of iOS/Android apps to Flutter across 14 waste-management companies, deploying a modular core library with 15+ modules for code reuse. Built a Swift framework/pod for BLE operations, exposed via method channels for cross‑platform use, and integrated offline mapping with Mapsforge. Enhanced app stability on Android and delivered reusable UI components across client apps.

iOS Developer at Ximio B.V.

January 1, 2016 - December 1, 2019

Pioneered the complete migration from Objective-C to Swift within six months, modernizing multiple waste-management apps. Architected a modular core library and contributed to a pod-based system to streamline code reuse across client applications. Implemented a Swift framework/pod for BLE-like operations and coordinated real-time messaging via WebSocket for live communications.

iOS Developer at Manggis Information Systems

September 1, 2012 - January 1, 2016

Developed and maintained iOS apps for over 20 startup projects, including social media and university solutions, using Objective-C and Swift. Built real-time chat applications with WebSocket technology and delivered native iOS apps for prominent clients (e.g., Ege Seramik, Celal Bayar University, Uskudar University, ESHO T, and Buse Terminal). Modernized apps from iOS 4 to iOS 7 with Auto Layout to support multiple device generations.