Wael MESSAOUD

Project : Enhancement of an internal AI-powered chatbot MVP for leasing activities Technologies: Spring Boot 3, Java 21, Python 3, CI/CD (Kubernetes,Docker,Jenkins), AI (LLM, RAG, Elasticsearch, Langchain, OpenAI), Chainlit ● Experiment with and enhance a multi-tenant feature enabling flexible chatbot usage (LLM only, RAG only, or hybrid mode). ● Leverage Elasticsearch to improve the accuracy and relevance of chatbot responses. ● Migrate the chatbot from GPT-4o to an in-house LLM while ensuring service scalability and robustness. ● Operate and maintain CI/CD pipelines (Kubernetes) to guarantee reliable and fast deployments. ● Lead technical workshops (CI/CD, Git workflows, code reviews) and author clear documentation. ● Conduct technical interviews (Jenkins, Docker, algorithms, Java) to support recruitment.

Project: Development and enhancement of medical management software for European hospitals ● Develop and maintain high-performance APIs of 3 interconnected applications built in microservices architecture ● Design, build and optimize backend features (background jobs to generate large PDF files, APIs, mappings, database interaction) ● Collaborate in an agile environment with medium-size team members (architect, PM, engineers) to design system architecture ● Optimize background jobs parallel execution that generate patient’s data reports with automatic workers allocation ● Implement, maintain and test (with RestAssured Framework) REST APIs for internal and cross-team usage ● Implement Jasmine Unit tests, integration tests (Cucumber/Playwright) reducing post-development bugs ● Implement and maintain scalable, performant systems with high-traffic data (patients’ data across European hospitals) ● Apply SOLID Principles and System Design patterns to enrich and solve applications issues as part of Object Oriented programing ● Implement intuitive, functional and responsive interfaces for complex medical data ● Optimize Front-End architecture through refactoring ● Contribute to code reviews to maintain high-quality and clean code ● Work with Jenkins CI pipelines to automate builds and deployments and resolve delivery issues ● Run and manage applications in Docker containers via shell files ● Ensure good customer experience by collecting feedback from developed features demos with international clients

Projects: - Maintenance and improvement of a medical management application for hospitals in the United States - Maintenance and development of a home certification application in the United States (Pearl Certification) ● Design, develop, and maintain RESTful APIs using Django REST Framework (DRF) ● Apply SOLID principles to enhance reliability, maintainability, and clean architecture in Python ● Diagnose PostgreSQL cluster issues, fix collation and data integrity bugs ● Migrate legacy code to modular API integrations (Google Maps, Inspectlet, WalkMe) under Angular ● Use and test JSON-driven dynamic Angular forms to support faster development ● Develop responsive multi-device interfaces, adapted to various formats and screen resolutions

- Testing period : Developed a CRUD + Filtering application for managing customers and their corresponding products as part of the training program with Angular 10 Laravel 6 and MySQL - Working period : * Worked on a CRUD patient data involving 15+ tables related hosted within an SQL Server database and integrated the data with Angular 9 * Applied some Angular best practices to reformat existing code * Analysed the project-management system and proposed solutions to gain development and maintenance time

- Project : Design and development of an online payment application (from scratch) - Keywords : Angular 10 / Typescript / PHP - Symphony 4 / Doctrine / SQL / Scrum Master / Bitbucket / UML ● Model the web application with UML diagrams to define user interactions, and database design. ● Design a modular architecture to support business requirements and ensure maintainability. ● Develop a functional MVP using Angular, delivering a user-friendly interface. ● Integrate OAuth2 authentication to ensure secure user access and compliance with industry standards. ● Implement asynchronous operations in Angular

Project : Development of a hybrid web application for automating doctoral school administrative tasks (built from scratch with a student) Keywords : ES6 - Javascript / PHP -MySQLi / CSS3 / Bootstrap 3 / Cordova ● Contribute to the front-end application development using JavaScript, HTML and CSS ensuring dynamic and responsive user interactions ● Design and manage database interactions with MySQLi to support reliable data storage and retrieval ● Implement CRUD operations and authentication features using PHP to secure and streamline user workflows. ● Apply ergonomic design principles with CSS3 and Bootstrap 4 to deliver an intuitive and accessible UI ● Deploy the application on mobile devices with Cordova, enabling cross-platform accessibility

Mission : Initiation to the professional world Key Learnings : Professional integration - Knowledge of transmission networks protocols