Melih.
Mobile Application Engineer · Istanbul

Melih Yaşar SÖZEN

I build secure, production-ready mobile apps across fintech, e-commerce, delivery, payment, and productivity, plus AI-powered automation and agent systems.

FlutterSwiftUIKotlinReact NativeAI Agents

About

About Me

I'm a Mobile Application Engineer with 4 years of experience building production-ready applications across fintech, e-commerce, delivery, payment, and productivity domains, using Flutter, SwiftUI, Android, Kotlin, and React Native.

I focus on clean architecture, performance optimization, secure mobile development, and scalable product delivery. I also build AI-powered automation workflows, agent-based systems, and intelligent product features.

Clean Architecture

Modular, maintainable codebases that scale with the product.

Performance

Fast, stable apps, including rescuing legacy codebases.

Secure by Default

Encrypted data flows for fintech and digital assets.

AI & Automation

LLM features, agents, and workflows that save real time.

Skills & Expertise

Flutter
Dart
Swift
SwiftUI
Kotlin
Android
React Native
Clean Architecture
REST APIs
AI Agents & Automation

Career

Resume

Download CV

Experience

  1. Mobile Application Engineer08/2025 - 05/2026

    Paribu · Istanbul, Türkiye / Hybrid

    • Contributed to the development of secure, institutional-grade digital asset custody solutions and multi-signature wallet infrastructures.
    • Implemented secure mobile features, encrypted data flows, and application logic for fintech and digital asset products with a focus on reliability and maintainability.
    • Developed AI agent and automation workflows to streamline internal processes, reduce manual effort, and support intelligent decision-making.
    • Collaborated with product, design, backend, and security teams to deliver production-ready mobile features.
    • Improved code quality by following clean architecture principles, reusable component structures, and structured development workflows.
  2. Mobile Application Engineer06/2022 - 08/2025

    Lean Scale · Dubai / Remote

    • Designed and built a comprehensive e-commerce pharmacy application using Flutter from scratch, including product listing, cart, checkout, user flows, and REST API integrations.
    • Developed a multi-module food delivery application using Android, Kotlin, and modular architecture, improving scalability, maintainability, and feature separation.
    • Built a React Native POS payment application, integrating payment flows, device-specific features, and production-ready mobile UI components.
    • Refactored and optimized a legacy Flutter courier application, improving performance, maintainability, and application stability.
    • Created a fully functional iOS keyboard extension application from scratch using SwiftUI, custom keyboard UI, shared storage, authentication, and subscription logic.
    • Integrated AI-powered mobile features such as grammar checking, translation, tone adjustment, summarization, and smart suggestions into production applications.
    • Developed AI-powered automation workflows and agent-based systems outside of mobile applications to automate repetitive business processes and improve internal operations.

Education

Bachelor of Science in Computer Engineering2020 - 2024

Trakya University · Edirne, Türkiye

Technical Skills

Mobile Development
Flutter, Dart, iOS, Swift, SwiftUI, Android, Kotlin, Java, React Native
Architecture
Clean Architecture, MVVM, Modular Architecture
Backend & APIs
REST APIs, Node.js, NestJS, PostgreSQL
AI & Automation
AI Agent Development, Automation Workflows, Agent-Based Systems, LLM Integrations, RAG
Tools & Platforms
Git, GitHub, GitLab, Jira, Xcode, Android Studio, VS Code, Docker, App Store Connect, Play Console
Languages
Turkish, English

Work

Featured Projects

Digital Asset Custody & Wallets
Fintech
Mobile Security
Clean Architecture
Secure, institutional-grade digital asset custody solutions and multi-signature wallet infrastructure at Paribu, with encrypted data flows and security-focused mobile features.
Pharmacy E-commerce App
Flutter
Dart
REST API
A comprehensive e-commerce pharmacy application built from scratch with Flutter, including product listing, cart, checkout, user flows, and REST API integrations.
Food Delivery App
Android
Kotlin
Modular Architecture
A multi-module food delivery application built with Android and Kotlin on a modular architecture, improving scalability, maintainability, and feature separation.
POS Payment App
React Native
Payments
A React Native point-of-sale payment application with integrated payment flows, device-specific features, and production-ready mobile UI components.
Courier Application
Flutter
Dart
Refactoring
Refactored and optimized a legacy Flutter courier application, improving performance, maintainability, and application stability.
AI Keyboard Extension
SwiftUI
Swift
iOS Extensions
LLM Integration
A fully functional iOS keyboard extension built from scratch with SwiftUI, featuring a custom keyboard UI, shared storage, authentication, subscriptions, and AI-powered writing tools.

AI

AI Experience

AI Agents & Internal Automation at Paribu
Developed AI agent and automation workflows to streamline internal processes, reduce manual effort, and support intelligent decision-making.

Technologies

AI AgentsAutomation WorkflowsLLM Integrations

Outcome

Reduced manual effort across internal processes and supported faster, better-informed decisions.

AI-Powered Writing Features in Mobile Apps
Integrated AI-powered features such as grammar checking, translation, tone adjustment, summarization, and smart suggestions into production mobile applications, including an iOS keyboard extension.

Technologies

SwiftUILLM IntegrationsiOS Keyboard Extension

Outcome

Shipped intelligent writing tools to production users directly inside the keyboard and app experience.

Business Process Automation at Lean Scale
Built AI-powered automation workflows and agent-based systems outside of mobile applications to automate repetitive business processes.

Technologies

Agent-Based SystemsAutomation WorkflowsRAG

Outcome

Automated repetitive business processes, improving internal operations and team productivity.

Contact

Get In Touch

Contact Information
Feel free to reach out through any of these channels

Location

Kadıköy, Istanbul, Türkiye

Connect with me

Send Me a Message
I'll get back to you as soon as possible at [email protected]