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I'm a mobile/web full-stack engineer with deep Flutter and Dart experience, focused on secure cross-platform app development. I own end-to-end delivery of features like authentication, payments, and real-time experiences, always prioritizing security and UX. I build cohesive design systems, improve release engineering with CI/CD, and collaborate closely with backend and QA teams to ship robust, reliable mobile solutions.…I'm a mobile/web full-stack engineer with deep Flutter and Dart experience, focused on secure cross-platform app development. I own end-to-end delivery of features like authentication, payments, and real-time experiences, always prioritizing security and UX. I build cohesive design systems, improve release engineering with CI/CD, and collaborate closely with backend and QA teams to ship robust, reliable mobile solutions.

Saed Younis

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

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I'm a mobile/web full-stack engineer with deep Flutter and Dart experience, focused on secure cross-platform app development. I own end-to-end delivery of features like authentication, payments, and real-time experiences, always prioritizing security and UX. I build cohesive design systems, improve release engineering with CI/CD, and collaborate closely with backend and QA teams to ship robust, reliable mobile solutions.…I'm a mobile/web full-stack engineer with deep Flutter and Dart experience, focused on secure cross-platform app development. I own end-to-end delivery of features like authentication, payments, and real-time experiences, always prioritizing security and UX. I build cohesive design systems, improve release engineering with CI/CD, and collaborate closely with backend and QA teams to ship robust, reliable mobile solutions.

Available to hire

I’m a mobile/web full-stack engineer with deep Flutter and Dart experience, focused on secure cross-platform app development. I own end-to-end delivery of features like authentication, payments, and real-time experiences, always prioritizing security and UX.

I build cohesive design systems, improve release engineering with CI/CD, and collaborate closely with backend and QA teams to ship robust, reliable mobile solutions.

Skills

Dart

Flutter

TypeScript

Experience Level

Dart

Expert

Flutter

Expert

TypeScript

Expert

Language

English

Fluent

Turkish

Fluent

Arabic

Fluent

Work Experience

Flutter Frontend Engineer at HoyaPay

January 1, 2026 - June 1, 2026

Owned authentication, payments, and platform reliability across a large cross-platform codebase with a server-authoritative approach. Delivered passwordless authentication (passkeys/WebAuthn) with OTP fallback, implemented idempotency across 15+ money-moving flows, and built per-device credential management and multi-OEM/iOS hardening. Implemented real-time transaction status via WebSockets and hardened the client API layer (Dio) with encrypted requests, signing, and strict logging hygiene.

Flutter Frontend Engineer at Better-Pro Limited

January 1, 2026 - Present

Led end-to-end delivery of payment and account features within a cross-platform crypto/fiat wallet, prioritizing security. Built core wallet functionality (balances, deposits, withdrawals, transfers, exchange, card flows), implemented passwordless authentication and account recovery, enforced server-authoritative payment flows, and created real-time status updates. Promoted a cohesive design system with light/dark theming and collaborated with backend/QA to ensure sample release sign-off and test coverage.

Full Stack Developer at Aqare Click

June 1, 2025 - August 1, 2025

Developed a responsive React frontend with TypeScript and Tailwind, created a centralized API layer with real-time chat, scheduling, and property management features. Implemented internationalization (i18n) for Arabic RTL and English, built RBAC-based access controls, and added real-time notifications for a scalable property management system.

Flutter Developer at Rest Fort

October 1, 2023 - January 1, 2024

Led cross-platform Flutter development with Agile practices, maintained high code quality, implemented real-time chat via Pusher, integrated multiple payment gateways, and published on iOS App Store and Google Play Store. Collaborated with UI/UX designers to translate complex requirements into intuitive features.

React & Flutter Developer at Masar

June 1, 2023 - July 1, 2023

Developed a responsive React admin panel for dynamic data management and deployed a Flutter mobile app (Google Play) to enable streamlined data visualization. Integrated Laravel back-end APIs to synchronize data across web and mobile.

Flutter Developer at Yumgott

April 1, 2023 - May 1, 2023

Built a restaurant app with Swish payment integration and digital wallet features. Implemented user authentication, reels, and social features such as follow/like systems. Used MVVM with Bloc for scalable architecture and optimized performance for web and mobile.

Flutter Developer & Project Manager at Bubbles — Social Media Application

March 1, 2022 - November 1, 2022

Architected a social platform with real-time private and group chat via Socket.io, event creation tools, Google Maps integration, and QR-based friend requests. Provided weekly progress reports and used MVVM with Bloc for modular state management.

Flutter Developer at Nabda Organization

January 1, 2022 - February 1, 2022

Developed a data showcase app with form submissions, ensured responsive UI across devices, and collaborated to resolve defects for improved stability.