orkun.dayi
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~/orkundayi $ cat about.md

# profile overview

About

Orkun Dayi · Flutter | Fullstack Developer

I build mobile products with Flutter and Dart. At Overtech, I work on payment, sales, reporting, and integration flows for OverPay; independently, I create apps and games under Flutech. Alongside Firebase, REST API, SQL, and .NET experience, I use Flame to build game loops, physics, collision systems, and scene management. I shipped FluPass, Cüzdan, and Foxy: Balance of the Glow to mobile stores.

Current role

I build Flutter interfaces for payment and operational workflows in OverPay, while designing and shipping mobile apps and 2D indie games independently under Flutech.

Preferred work

I am interested in Flutter mobile products, 2D games, maintainable application architectures that grow with the product, and mobile store release workflows.

Quick Facts

Experience
5+ years of Flutter development experience
Primary focus
Flutter, Flame, and indie game development
Current role
Flutter | Fullstack Developer
Location
Istanbul, Türkiye

Capabilities

The technical areas I focus on from first idea to a working product.

Flutter Mobile App and Game Development

I build mobile apps, 2D game mechanics, and adaptive interfaces for iOS and Android with Flutter and Flame.

Data Management and Modeling

I create data models, storage flows, and queryable data structures for Firebase/Firestore and SQL-based application architectures.

REST API and .NET Backend Workflows

I build application flows that work with REST APIs, data models, and .NET-based backend workflows.

Responsive UI Development

I build user-focused interfaces that work consistently across phone, tablet, and web screens.

Admin Panels and Content Management

I build clean and practical admin panels for managing projects, content, users, or media data.

Clean and Maintainable Code

I focus on readable, scalable, and maintainable code structures for long-term development.

Product and Store Releases

I handle the end-to-end product journey from product idea and application architecture through testing and App Store or Google Play release.

Performance Optimization

I improve application speed, smoothness, and stability through performance-focused optimizations.

career highlights

  1. Shipped Products

    I shipped FluPass, Cüzdan, and Foxy through product development, store preparation, and public release.

  2. Mobile App and Game Experience

    I build production applications with Flutter and game loops and scene systems with Flame, creating consistent experiences across iOS and Android.

  3. Backend and Data Awareness

    I work with Firebase, REST APIs, SQL, and .NET-based workflows, allowing me to build applications with an understanding of both UI and backend/data flows.

  4. Admin Panels and Content Management

    I build clean admin panels that make it easy to manage content, user data, or portfolio information within a project.

  5. Clean and Maintainable Code

    I focus on creating readable, scalable, and maintainable code structures for long-term project development.

  6. Fast Adaptation

    I can quickly adapt to new projects, different codebases, and changing requirements while staying productive.

Experience

The responsibilities I have taken across products, interfaces, and integrations.

September 2021 - Present

Overtech Bilgi Teknolojileri · Istanbul, Türkiye

Flutter Developer

I work as a Flutter Developer at Overtech on the OverPay project. I develop mobile and web interfaces for payment, sales, reporting, and integration flows, contributing to user experience, maintainable screen structures, and performance-focused improvements.

  • Developed Flutter screens for payment, sales, reporting, and customer integration flows in the OverPay project.
  • Worked on user interfaces for 507/509 payment systems, GIB integration, and VKN/TCKN lookup processes.
  • Contributed to X, Y, Z reporting and operational tracking screens with a focus on usability and maintainable screen structures.
  • Built mobile and web interfaces integrated with REST APIs, JSON, and SQL-supported business flows.
  • Improved existing screens with a focus on performance, readability, and maintainability.
.NETFlutterREST APIJSONSQLPOS SystemsPayment FlowsCustomer IntegrationsReportingGit

Technical Skills

Technologies and practices I use in my day-to-day delivery workflow.

ls ./flutter-mobile-web

Flutter Mobile and Games

  • Flutter Application DevelopmentAdvanced
  • Responsive and Cross-Platform UIAdvanced
  • Mobile/Web Release FlowsUpper Intermediate
  • 2D Game Development with FlameAdvanced

ls ./backend-api-data

Backend, API and Data

  • REST API IntegrationAdvanced
  • .NET Backend DevelopmentUpper Intermediate
  • SQL and Data ModelingUpper Intermediate

ls ./firebase-cloud

Firebase and Cloud

  • Firebase-Backed ApplicationsAdvanced
  • Firestore Data FlowsAdvanced
  • Authentication and Storage FlowsAdvanced

ls ./product-quality

Product and Code Quality

  • Admin Panel DevelopmentAdvanced
  • Debugging and API TestingAdvanced
  • Clean and Maintainable CodeAdvanced

Education

2017 - 2021

Bachelor’s Degree, Computer Engineering

Trakya University · Edirne, Türkiye

Studied software development, algorithms, data structures, database systems, and application development fundamentals. After graduation, I focused on mobile and web application development with Flutter.

Let's build something useful

~/orkundayi $ contact --open

Let's build something useful

Reach out for new products, long-term projects, and thoughtful collaborations.

Emailorkundayi@flutech.orgGitHubgithub.com/orkundayiLinkedInlinkedin.com/in/orkundayiWebsiteorkundayi.com