Louis Pennachio

• Designed and built a full gaming platform from scratch, including backend infrastructure (API servers, edge servers, game servers) • Architected and developed three client applications (Android, iOS, Web) using Kotlin Multiplatform • Defined overall system architecture, ensuring scalability, low latency, and maintainability • Implemented end-to-end features, from backend services to client-side user experience • Set up deployment pipelines and infrastructure, delivering a fully functional platform currently in closed testing

• Led the architecture and development of a peer-to-peer cloud storage app with zero-knowledge design • Implemented Compose-based UI, including portrait and landscape modes, tablet layouts, light/dark themes, and animations (Lottie and native Android animation APIs) • Built a robust offline-first system enabling file browsing and viewing without network connectivity • Designed and implemented CI/CD pipelines using GitHub Actions and end-to-end testing pipelines (Maestro) • Managed Google Play Store releases, integrated feature flags (Statsig), and implemented analytics (Branch, Mixpanel) + customer support SDKs (Intercom) • Integrated Firebase Crashlytics and Performance Monitoring to track stability and optimize performance • Drove technical decisions, testing strategies, and best practices across the Android codebase

• Contributed significantly to the modularization of a large legacy codebase, improving scalability and maintainability • Championed the integration of the web-based rich message rendering engine on Android, ensuring consistent messaging experience across platforms • Achieved and maintained 80%+ unit test coverage using modern Kotlin testing frameworks • Implemented offline capabilities and optimized synchronization for reliable messaging • Migrated legacy systems to a modern architecture and data model • Ensured compatibility with enterprise MDM solutions (BlackBerry, MobileIron, Intune)

• Contributed to the refactoring and architectural improvement of an electronic signature application • Improved code structure, test coverage, and front-end maintainability • Delivered new features and supported production releases, enhancing application stability

• Developed an Android application from scratch for legal proof verification in construction • Implemented the core workflow: capture images of signs, fill forms, generate PDFs, and transmit proofs securely • Built project tracking and notification features for users to monitor legal proof submissions • Applied modern Android architecture, Kotlin best practices, and offline-first principles to ensure maintainability and reliability

• Maintained and upgraded a cashier app for supermarkets, ensuring compatibility with Bluetooth/Wi-Fi payment terminals and printers • Updated the app to support iOS 11, improving stability and device interoperability

• Developed native mobile SDKs (Android & iOS) to control electronic modules via Bluetooth Low Energy (BLE) and interact with cloud services • Built multiple mobile applications on top of these SDKs, enabling device control, data synchronization, and cloud connectivity

Developed a solution enabling geographers to attach sensors to a drone and configure them via a domain-specific language (DSL) tailored specifically to their needs, implemented with Groovy.

• Developed a program aimed at monitoring production machines to prevent failures, based on signal analysis. Integration with production lines • Analysis of large volumes of data to categorize failures and identify patterns

Co-organized "Nuit de l'info", a french programming contest gathering 3000 students who take challenges offered by various companies, during one single night.