Hedi H.

What I bring

• Design and development of robust and secure Android & iOS applications
• Implementation of clean and scalable architectures, product- and maintainability-oriented
• Sharing cross-platform business logic via Kotlin Multiplatform (KMP)
• Development of Backend For Frontend (BFF) in Ktor (Kotlin)
• Strong focus on security, compliance, and data protection

Areas of expertise

• **Mobile**: Android, iOS
• **Cross-platform**: Kotlin Multiplatform (KMP)
• **Backend**: Ktor, REST APIs, BFF
• **Architecture**: Clean Architecture, API-first
• **Security**: encryption, key management, secure storage, access control
• **Methodology**: Agile / Scrum

Main missions:

• Design and modernization of a fluid and intuitive user experience on Android and iOS via Flutter, resulting in a high-performing and visually polished application.
• Development and supervision of a Backend For Frontend (BFF) in Node.js, exposing endpoints for mobile needs.
• Implementation and orchestration of backend components via Docker, including Kafka integration to ensure reliable communication between microservices and mobile applications.
• Supervision of the mobile CI/CD infrastructure using GitHub Actions and Fastlane, enabling complete automation of builds, tests, and deployments.
• Strengthening software quality through unit and integration tests, ensuring application stability in an Agile environment.

Contribution to key functional areas of the application:

• optimization of the delivery process,
• invitation management,
• delivery tracking,
• integration and evolution of payment solutions.
• Active participation in technical decisions on structuring issues of the application, with a direct impact on:
• reducing delivery times,
• improving user experience,
• optimizing overall platform efficiency.

Technical environment:

• **Mobile**: Flutter, Dart, Kotlin, Swift
• **Backend**: Node.js, TypeScript, Microservices, Kafka
• **DevOps**: Docker, GitHub Actions, Fastlane
• **Architecture**: Clean Architecture
• **Quality & Analytics**: Mockito, Firebase, Crashlytics, Google Analytics
• **Tools**: Git, Android Studio, Xcode, Visual Studio Code
• **Security**: application best practices

Main missions:

• Contribution to the evolution of the Carrefour Drive & Delivery Android application, used on a large scale.
• Development of new features and UI/UX redesign to improve fluidity, performance, and user experience.
• Improvement of mobile architecture with modern patterns (MVI, Clean Architecture) and reactive technologies (Flow, Coroutines).
• Implementation of dependency injection with Hilt to enhance code modularity and maintainability.
• Modernization of mobile CI using Jenkins and Gradle Kotlin DSL (KTS) to automate builds and tests.
• Development of unit and integration tests to ensure code stability and quality.
• Estimation, planning, and prioritization of tasks in an Agile / Scrum environment, in close collaboration with Product Owners and design teams.

Technical environment:

• **Mobile**: Android, Kotlin, MVI
• **Architecture & reactivity**: Clean Architecture, Flow, Coroutines
• **DI & data**: Hilt, Proto
• **Quality**: JUnit, Mockito, Mockk
• **CI/CD**: Jenkins, Gradle KTS
• **Tools**: Android Studio, Git, GitLab, JIRA, Confluence
• **Backend**: REST APIs
• **Analytics**: Firebase