Valentin DEUSSEN

Python project

Creation of a program in python during my bachelor's degree in engineering, computer science and digital science option. It was a game based on the game "Plague Inc. The goal here is to succeed in contaminating a whole high school before a cure is found. To do this, there were bonuses to choose at the beginning of the game allowing to have additional attributes (contagiousness, extra points, slowing down the creation of the cure, ...). A system of points allowed to increase our virus (transmission in the air, chance to contaminate other students, ...). Each infected student had a certain chance to infect another student by coughing (within a defined radius). To win, the player had to reach 100% of infected students before the cure was created.

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Network equipment upgrade project

When I was an apprentice computer technician at the French Ministry of the Armed Forces, during my DUT in networks and telecommunications, I had to carry out a project to validate my diploma. The project was called "Projet GAS". GAS is a tool enabling complete supervision of active network equipment (switch/router). As part of the deployment of this tool, we had to replace all the old equipment (Allied/HP) with CISCO brand equipment to make it compatible with GAS

The project included several key steps including :

The injection of the new configuration in the new equipments;

Careful preparation of the deployment;

Deployment according to the plan made during the preparatory phase;

Verification of the network accessibility by the terminal equipment.

Carrying out this project while ensuring that the service is restored as quickly as possible during the deployment phase.

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IP address upgrade and proximity server set up project

Other project that I had to realize in order to validate my university diploma, the project "IPLAN" and the installation of a proximity server, it was two tasks carried out in parallel.

The IPLAN project aimed at modifying the IP ranges of all the sites in our intervention zone according to the national plan in order to standardize the addressing plan as well as the various VLANs.

This project includes several steps:

The creation of new extensions on the DHCP and new VLANs on the EARs;

Reservation of IP addresses on DHCP for the end devices on the new IP ranges;

Switching of devices and deleting the old IP ranges and VLANs;

Realization of this project while ensuring that the service remains available to the user.

The proximity server was intended for the internet network (not intranet), the purpose was to create a server under Windows Server 2012 R2 and several VMs under hyper-V.

It was an autonomous project with no operating mode, the different VMs had to contain at least:

Active Directory (with Group Policy), DNS/DHCP, NTP time-server, WDS (with autonomous installation of the OS via response files), WSUS and Kapersky antivirus server.

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Network architecture upgrade project

This was the project my company gave me during my bachelor year at CESI. The objective was to implement an IP modernization project (called MODIP). The aim of this project was to completely modernize a LAN infrastructure, including new racks, Ethernet sockets, cable trays and active equipment. The first step was to carry out a technical study to familiarize ourselves with the building, and to discuss with the beneficiaries the various requirements in terms of RJ-45 sockets. Next, we had to draw up the complete technical file for the manufacturer. The technical file includes a description of the site, the building and the user's needs, followed by a project budget, a risk analysis and the various plans showing the racks, cable passages and Ethernet sockets. We also had to draw up the plans for the racks, in this case two racks, as there was a classified network specific to the army which had to be completely isolated from the conventional intranet network

This project had to be carried out following a precise methodology and the various standards imposed by my management.

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EasySave - C# project

As part of my engineering studies at CESI, we created a backup software program where users can create backup jobs. The software displays and records the progress of backup jobs in real time, in a single file. The software is able to encrypt files using CryptoSoft (also written in C#). Only files with extensions defined by the user in the general parameters are encrypted.

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Certification of an new IT system

This was an assignment given to me by my company during my first year of the engineering cycle at CESI. During the implementation of a new information system within one of the sites of the Ministry of the Armed Forces, it is compulsory to proceed to its certification before authorizing the exploitation. The certification allows to identify, to reach and to maintain an acceptable level of security risk for the considered information system. The objective of my project is to realize the homologation file which will be transmitted to the homologation authority, which will study it, then validate or not the homologation. The homologation is based on the EBIOS Risk Manager method, it is the method of appreciation and treatment of the digital risks published by the National Agency of Security and Information Systems (ANSSI). The certification file must respect the ANSSI guidelines, it includes at least a risk analysis, a FEROS (Rational expression of security objectives), a security plan, an action plan, the list of all residual risks to be reduced to the maximum and accepted and finally an operating procedure. The objective of my project is to write the certification file in accordance with the requirements of the ANSSI.

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Creating an application for food delivery

CES'Eat represented the most significant development challenge of my engineering studies at CESI, with the ambition of creating a platform similar to UberEats. The project was developed mainly in JavaScript for server logic with Node.js, and in C# for user management and interaction with the database, which was implemented on SQL Server instead of MongoDB. Query testing was carried out via Postman to ensure reliability and efficiency.

project was structured around several microservices, each handling a specific aspect of the application:

• User Microservice: responsible for user creation, editing and deletion, as well as role management. This microservice was directly connected to the C# application, providing an interface for managing users and their roles in the SQL Server database.
• Restaurant Microservice: managed the connection to the SQL Server database for creating, updating and deleting restaurant information and menus. This included control of menus and available items.
• Order Microservice: developed for creating and modifying orders, adding menus and items to an order, and managing order history.

The customer, delivery driver and restaurant views were built to interact with the API via Axios, facilitating the consumption of the services provided by the microservices. The customer view enabled restaurants to be displayed, shopping carts to be created, and orders to be viewed and tracked in real time. The restaurant view provided an interface for managing incoming orders.

The API Gateway played a crucial role in managing routes and requests between the application's various services, integrating middleware for managing JWT tokens to secure exchanges. Sockets were used to create real-time links between the various actors in the interface (customer, restaurateur, delivery person) depending on the status of an order, enhancing the user experience by providing dynamic and interactive order tracking.

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Projet personnel Node.JS/React.JS

I'm currently working on the development of a web application aimed at combating food waste. Users can register on the app and add their food, either manually or automatically via the barcode using the Open Food Facts API. They can also enter an expiry date for each product. Eventually, the app will alert them when their products are approaching the expiry date, and suggest recipes based on the foods they have in stock. This is a personal project for which I'm using Node.js as the server-side execution environment and React.js to develop the client-side user interface. To ensure security and session management, I'm implementing middleware dedicated to authentication token verification, including refresh token management. I also use other middleware to control access rights and check the existence of data before any operation on the MongoDB database.

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