Abderrahmen Ammar

Machine Learning & Ocr Backend Mobile App

• Designed and implemented two OCR-based ML systems using Donut OCR and PaddleOCR to extract:
  Receipt information
  Employer/tax tables from UK employment documents
• Developed a FastAPI backend with MongoDB to:
  Process multi-page documents
  Normalize and correct dates
  Detect employers and their work periods
• Integrated ML models into a React Native mobile app enabling users to:
  Capture or upload images
  Automatically retrieve employer names and employment dates
• Improved overall automation and reduced manual data entry for employment verification

Technologies :

Donut OCR, PaddleOCR (PPStructureV3) / Python /

Regex,BeautifulSoup / FastAPI , MongoDB / Data extraction, text normalization, date correction / React Native (Expo)

Drive Plus — Smart Car Diagnostic & Safety Application

• Designed and developed Drive Plus, a mobile application that performs real-time vehicle diagnostics through OBD-II integration, enabling the retrieval and analysis of engine parameters, sensor data, and fault codes.
• Implemented data-driven algorithms to predict potential mechanical failures before they occur by analyzing historical and live OBD data.
• Built an AI-powered module capable of analyzing car accident images to estimate the degree of damage and predict repair costs with high accuracy.
• Integrated a driver monitoring system using camera input and computer-vision techniques to track driver attention, detect unsafe behavior, and enhance road safety.

Technologies :

React Native / Python / OBD-II / Driver monitoring / WebSocket / REST API / MongoDB / Spring Boot / Docker / AI,ML models / git

Smart Car — iOS Mobile Application for Automotive Services

• Developed an innovative automotive mobile app enabling intelligent vehicle diagnostics and service management.
• Implemented AI/ML models to detect potential mechanical issues and provide proactive maintenance recommendations.
• Built VIN-based car connectivity for retrieving vehicle data, booking history, and maintenance records.
• Integrated features including car news and video search, an in-app automotive store, and mechanical service tracking for users.
• Showcased expertise in advanced mobile development, backend integration, and real-time vehicle data interaction

Technologies :

SwiftU / Spring Boot / AI,ML Models / VIN Integration / REST APIs / JSON / HTTP / Xcode /Git , GitHub

Full-Stack Web Application Development with Secure Authentication

• Developed a full-stack task and user management application using Spring Boot and Angular.
• Implemented secure authentication and role-based access control with Keycloak, including login, logout, token validation, and protected routes.
• Designed and built REST APIs for managing users, tasks, and permissions, integrating them with the Angular frontend using services and interceptors.
• Strengthened expertise in web security, JWT handling, and modern frontend architecture

Technologie :

Spring Boot / Java / Keycloak (authentication & authorization) / Angular / TypeScript / JWT, Guarding routes, Interceptors

Development of a Mobile Marketplace Application Using Flutter

• Adapted quickly to new technologies in an ever-changing digital landscape.
• Created detailed documentation on app functionalities, aiding user understanding.
• Assured quality by conducting thorough testing before app release.
• Developed user-friendly mobile applications for enhanced customer engagement.

Technologie

Flutter