Mohamed Bellar

Auchan mobile app - customer journey and loyalty features. + Redesigned the iOS application architecture using MVVM + Clean Architecture for better maintainability and scalability. + Modularized codebase with Swift Packages for improved reusability. + Migrated asynchronous code from GCD/Completion Handlers to Swift Concurrency for safer and cleaner async workflows. + Developed hybrid user interfaces with UIKit and SwiftUI. + CI/CD & Delivery: End-to-end App Store submission process, including certificates, provisioning profiles, and release management. + SDK Integrations : + shopremeCore for native Scan & Go purchase and payment experience. + Mobile Push SDK for targeted push notifications. + Google Places API + MapKit for interactive store location maps. + Worked closely with UX/UI, product, and security teams to ensure a smooth, secure, and industry-compliant user experience. + Collaborated within an Agile environment, participating in sprint planning, reviews, and retrospectives. + Documented workflows and solutions in Confluence.

Worked on multiple mission-critical communication applications (Push-to-Talk, VoIP, messaging, geolocation) for enterprise and public safety clients, delivering secure, high-performance solutions across three major projects. + Collaborated with an Agile team, managing tasks and sprints using Clickup . + Adopted MVVM (with Clean Architecture or Combine depending on project) for maintainable and scalable codebases. + Developed user interfaces with UIKit and SwiftUI. + Integrated CallKit for native VoIP call handling and system-level synchronization. + Built instant messaging modules using MessageUI with support for media sharing (files, images, video). + Implemented real-time geolocation and map annotations using MapKit and Google Maps. + Integrated Apple Push Notifications (APNS) for real-time communication alerts. + Added local storage with Realm for fast offline data persistence. + Integrated Firebase Crashlytics for crash reporting and error tracking. + Managed API communication via REST, using Combine, closures, and Alamofire on iOS, and Retrofit on Android. + Automated app deployment to App Store and TestFlight, handling certificates, provisioning profiles, and release validation. + Performed unit testing (including TDD approach) with XCTest and code reviews to maintain quality.

UpToFind: iOS application for reporting and finding lost items. + Built a user-friendly interface with UIKit . + Integrated Google Maps API to display item locations interactively. + Conducted testing on multiple iOS devices to ensure performance and reliability. + Implemented Firebase Crashlytics for crash monitoring and diagnostics. + Collaborated closely with the client to propose improvements and resolve issues. + Managed app distribution through TestFlight for testing and feedback collection.