Dafallah Ibrahim

Senior Flutter Developer with 8+ years building scalable, production-grade cross-platform mobile applications using Flutter and native technologies, published on Google Play and the App Store. Strong focus on clean architecture, secure mobile development, and payment integration, with experience across transportation, e-commerce, and on-demand services. Experienced in leading teams, mentoring engineers, and implementing CI/CD pipelines, and skilled in using AI-assisted development tools (Claude Code, Cursor, Codex) to accelerate delivery and code quality.

Senior Flutter Developer at Transport Systems (2023-03 – Present)

• Architected and developed enterprise Flutter applications for drivers, operators, and administrators, delivering 70+ feature modules using Clean Architecture and SOLID principles.
• Implemented secure storage and biometric authentication to protect user credentials and session data.
• Built real-time communication features including chat, voice/video messaging, group conversations, and VoIP calling using Agora, Pusher WebSockets, and Firebase Cloud Messaging.
• Integrated Google Maps with live GPS tracking, polyline route rendering, geolocation filtering, and custom map markers across all applications.
• Implemented Stripe payment gateway with secure card tokenization and payment method management.
• Established CI/CD pipelines using Codemagic, delivering 188+ automated builds across iterative release cycles.
• Adopted AI-assisted development tools (Claude Code, Cursor) for code generation, refactoring, and test scaffolding, improving delivery speed and review quality.

Mobile Application Developer (Flutter) at SMT - Technology (2021-06 – 2022-06)

• Developed and maintained cross-platform mobile applications for Android and iOS using Flutter with GetX for state management.
• Optimized app performance by improving launch time and reducing resource and power usage.
• Implemented UI/UX enhancements and responsive layouts to improve usability across devices.
• Integrated Firebase Cloud Messaging (FCM) for push notifications.

Mobile Application Developer (Flutter) at F5-ICT (2020-09 – 2021-06)

• Developed a dual-app transportation platform (fCar and fCar Partner), implementing real-time order matching between passengers and captains using Socket.io.
• Contributed to the full SDLC, improving overall app performance by 35% through lazy-loading pagination and GraphQL integration.
• Implemented a trip re-order feature based on user feedback, leading to an 80% improvement in user satisfaction.
• Integrated Google Play Services and Google Maps API to enable core location-based features and real-time tracking.
• Managed the app release lifecycle, including production builds, testing, and maintenance on the Google Play Store.

Mobile Application Developer (Java) at Almotakamla (2019-06 – 2020-08)

• Maintained and enhanced a payment processing application, debugging transaction flows and improving production reliability.
• Developed native Android applications using Java to meet the requirements.
• Integrated RESTful APIs for backend data communication.

Mobile Application Developer at Freelance (2017-01 – 2023-12)

• Delivered cross-platform mobile solutions for clients across e-commerce, on-demand services, and international markets.

Bachelor of Computer Science and Technology in Computer Science and Technology – Sudan University of Science and Technology (2013-01 – 2018-12)