Antonin Marxer

My assignment at the European Court of Human Rights, as a consultant for SII, allowed me to participate in a variety of projects combining web development, internal tool modernization, application security, and automation: - Development of a real-time interactive organizational chart powered by a C# .NET Core MVC & TypeScript application. - Graphic redesign of a website for tracking requests/complaints sent to the court (C# .NET Core 8) - Refactoring of C# .NET Framework 4 and JavaScript applications - Development of a file-sharing website based on C# .NET Core applications, a C# .NET Core API, and Azure functions - Creation of Azure CI/CD pipelines

I independently developed and deployed a web platform that allows users to register on their own for training sessions delivered either in person or remotely. It automates the sending of SMS notifications to ensure follow-up on the training courses. - Front-end development with Angular, Angular Material - Back-end development with C# .NET using microservices and DDD - Automatic SMS sending - Containerisation with Docker - Reproducible deployment with Ansible

Development of the MVP for an accounting platform for Finotor as a freelancer at Selego B.V. - Worked in an agile team of three developers - Front-end development in ReactJS, i18n, Tailwind - Back-end development in NodeJS, Prisma, PostgreSQL

Development of Connect Building platform, a Smart Building Management System solution that centralizes a building's data (IoT) to offer interfaces dedicated to energy performance, predictive maintenance, optimized operating costs and user well-being. - Backend development & unit tests development on Java Quarkus - Team collaboration with an agile team of 20 people - Graphic redesign of the frontend - Front-end development with React and Redux toolkit - Transformation of a React app into a Progressive Web App - Unit tests development with Jest on React - DB migrations with Liquibase - Usage of Docker

Development of an online payment system for the Foodgeez dark kitchen, which allows customers to order meals online without a physical restaurant. I added a high degree of payment flexibility: credit card, meal vouchers (Bimpli, Swile, Edenred), or cash payment. This project involved integrating two separate payment APIs (Paygreen and Edenred) to support a wide range of meal vouchers. The main challenges were ensuring payment security, providing a smooth user experience, and managing partial or multi-method payments. - Integration of Paygreen and Edenred payment APIs - Implementation of secure order validation logic to prevent payment circumvention - Design of a flexible payment flow supporting multiple methods (e.g., Edenred + Paygreen + cash) - Real-time tracking of authorized amounts and remaining balance during payment - Transactional system: users are only charged if the payment process is fully completed - Error handling and fallback mechanisms for expired cards, insufficient balances, or invalid payment attempts

Improvement of a trading bot controlled through a Java app. The app lets you subscribe to financial markets such as shares, FOREX, indices, commodities, and trade CFDs on those markets. - Costs and deadlines estimations - Customer business needs analysis - Focus on application robustness and prevention of unintended side effects - Migration of the application's architecture from spaghetti to MVC - Support of multiple brokerage platforms added, i.e. IB & IG - PANIC button correction to ensure all subscriptions are stopped

Developped API Tests for 3 FM Logistic's APIs, made test skeletons and drafted best testing practices. - Development, standardization and automation of chain tests (Postman & Jenkins) - Implementation of a TDD (Test Driven Development) development procedure - Creation of a web interface to provide a global view of the reports generated - Analysis of the business requirements of 3 existing APIs

Volunteer web development for the FRA 2022 (Forum Rhône-Alpes), a major student-business fair. I contributed to the development of a dynamic web page displayed on a giant screen during the event. The goal was to encourage companies to scan participants to simplify networking. To boost engagement, we showcased a leaderboard highlighting the top 5 companies that scanned the most students, as well as the most scanned students. A prize was awarded to the winners. - Team collaboration with 3 other developers - Development of a carousel displaying attending companies - Display of the event schedule - Frontend implementation of the TOP 5 companies leaderboard - Frontend implementation of the TOP 5 students leaderboard