Mohamad Khaldoon Alsayed

Mohamad Khaldoon Alsayed

Software Engineer
UAE
Arabic, English, Spanish, Turkish

About Me

Dubai-based Software Engineer with 3+ years of production Flutter experience, currently shipping a retail terminal platform for Carrefour UAE as the sole embedded engineer. Deep hands-on strength in the areas mobile team…

Experience

Software Engineer

iDol Technology · Dubai, UAE
Jan 2025 - Present · 1 year 9 months

<p>Architected and delivered a production-grade retail terminal application for Carrefour UAE as the sole embedded engineer, owning full SDLC from system design and Flutter implementation through third-party API integration, testing, and production release support<br>
Led hardware integration in Flutter for retail peripherals (pinpad terminals, barcode scanners, receipt printers) via platform channels and native bridging, achieving 100% device compatibility; engineered POS controller substate management for granular device state control and error recovery<br>
Developed robust transactional logic for POS operations including item lifecycle management, pricing controls, totals computation, tender handling, and complete cancel/void/reset paths with strong data integrity and recoverability guarantees<br>
Implemented real-time MQTT messaging workflows achieving sub-100ms latency for device-to-service communication, including event publishing/subscription patterns for transaction and operational updates across a distributed terminal fleet<br>
Designed and integrated TSA/Central API connectivity layers with robust request orchestration, payload mapping, circuit breaker patterns, and retry/fallback mechanisms ensuring 99.9% uptime in high-traffic retail environments<br>
Built end-to-end synchronization pipelines between terminal modules and backend services, maintaining real-time data consistency across cart, cashier, checkout, and stateful transaction data with offline recovery paths<br>
Wrote unit and widget tests around core transaction and state-management logic, and worked within CI/CD pipelines for build, release and production support<br>
Designed modular architecture with feature-based separation and clear service boundaries, enabling independent deployment of terminal modules and reducing regression testing scope by 60%<br>
Integrated Kitchen Display System (KDS) communication flows enabling near real-time propagation of order events and status updates from POS workflows to kitchen operations, reducing order fulfillment time by 30%<br>
Integrated third-party AI-powered anti-theft and fraud detection SDKs with real-time behavioral analysis, reducing self-checkout losses by 35% and inventory shrinkage by an estimated 25%</p>

Software Engineer

Vitrage (InnoVibe Department) · Dubai, UAE
Mar 2024 - Jan 2025 · 10 months

<p>Developed a cross-platform IoT mobile application using Flutter, integrating Tuya and Netatmo SDKs with cloud platforms for device control and management, serving 200+ active users<br>
Supervised end-to-end smart home project delivery including supply, installation, and maintenance, ensuring 100% on-time delivery across 15+ client installations with full compliance to industry standards<br>
Designed customized home automation systems (lighting, HVAC, security) tailored to client requirements, increasing energy efficiency by 20% and delivering seamless multi-device user control</p>

Full-Stack Developer & ERP Integration Specialist

Vandyvelluci · Istanbul, Turkey
Aug 2023 - Mar 2024 · 7 months

<p>Developed a user-friendly e-commerce platform using React.js and Next.js, increasing online sales by 20% within the first quarter through improved UX and streamlined checkout flow<br>
Integrated product data with Odoo ERP via REST APIs, improving inventory management accuracy and reducing pricing errors by 25% through automated real-time synchronization<br>
Streamlined pricing and materials management workflows, reducing manual data entry by 15 hours per week</p>

Software Engineer Intern

SCRAMBLEBIT
Jan 2023 - Jul 2023 · 6 months

<p>Front-end development for 2 client projects using React</p>

Operations Specialist

United Education
Feb 2022 - Jan 2023 · 11 months

<p>Salesforce CRM administration<br>
SOQL<br>
BULK API 2.0<br>
Analytics dashboard implementation reducing data retrieval time by 30%</p>

Founder & Lead Developer

Auranest · Dubai, UAE
Jan 2023

<p>Founded and operate Auranest, an IoT home automation company delivering smart home solutions to residential and commercial clients; lead all technical decisions, product development, and client project delivery<br>
Architected and built a cross-platform mobile application (Flutter) serving as the primary client interface for device control, in-app marketplace, and project management, published on both the App Store and Google Play<br>
Integrated Tuya SDK enabling seamless control of 12+ smart home device categories (lighting, HVAC, security cameras, smart locks, sensors) with real-time state synchronization and offline-first architecture<br>
Architected offline-first synchronization layer with local SQLite caching and conflict resolution, ensuring consistent device control and user experience across unreliable network conditions<br>
Designed and implemented an in-app marketplace with product catalogues, shopping cart, and order management, handling end-to-end transaction flow from product discovery to fulfillment</p>

Certifications

Bachelors of Software Engineering

Bahçesehir Üniversitesi, Turkey · Beşiktaş , Istanbul , Turkey · 2023

Skills

Flutter Dart Bloc Cubit Riverpod MobX Clean Architecture Layered Architecture Platform Channels Native Bridging Responsive UI Unit Testing Widget Testing Code Review Debugging Production Support Git CI/CD GitHub Actions Docker Firebase App Store Play Store AWS POS Self-Checkout KDS Payment Terminal Integration Pinpads Barcode Scanners Receipt Printers Security Scales Offline-First Transaction Flows ERP Odoo REST APIs GraphQL MQTT API Gateway Microservices JWT Retry/Fallback Circuit Breakers Tuya SDK Netatmo SDK Bluetooth BLE Hardware Peripheral Integration Smart Home Protocols JavaScript
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