Yoann Abriel
fr

Index

All projects

21 projects, from the 2023 FIBA chatbot to the 2026 agents. The oldest ones are school work: they stay, that is the path.

2024-2026

KARL

RAG cloud-intelligence chatbot in production at Orange Business. Local multi-LLM integration (Llama 3.3 70B, DeepSeek R1, QwQ 32B) via vLLM on H100 NVL and L40S GPUs, LangChain + ChromaDB orchestration. Built for auditable answers, not for the demo.

LangChain · ChromaDB · vLLM · H100 NVL · Llama 3.3 70B · DeepSeek R1 · RAG · Python

2026

JobSwiper

Live at jobswiper.ai with paying customers, built solo. AI-powered job-search SaaS: a match-scoring engine (vector embeddings + LLM reranking), a Canva-style CV editor, a real-time interview simulator, and a Chrome extension for 18+ job boards and ATS systems.

Next.js 16 · React 19 · TypeScript · Tailwind CSS · shadcn/ui · Supabase · OpenRouter AI · Inworld

2026

Apache Airflow

20 pull requests merged into apache/airflow (38,000+ stars), out of 42 submitted, through an autonomous agent pipeline I built to run the contribution cycle. Sharp bugfixes: scheduler, task-sdk, providers (Google, Oracle, Alibaba, SMTP, FAB), database migrations, including 2 security fixes.

Python · Apache Airflow · Autonomous agents · Claude Code · Open Source · pytest

2026

Koda, an LLM trained from scratch

A 1.27 billion parameter language model trained from scratch, just to understand how they work inside. LLaMA-style decoder-only (24 layers, GQA, SwiGLU, RoPE), trained in JAX/Flax NNX on 2 L40S GPUs. Checkpoints published on Hugging Face, with HF, GGUF and MLX exports.

JAX · Flax NNX · Python · LoRA · SlimPajama · Hugging Face · GGUF · MLX

2024-2026

Personal Portfolio

This site. A full typography-first redesign: Swiss style, paper background, a single red accent, Switzer and Fragment Mono. Next.js 15, Tailwind CSS 4, FR/EN i18n, dark mode, zero animation libraries.

Next.js 15 · TypeScript · Tailwind CSS 4 · next-intl

2026

POC Sophia

AI tool for documentary pre-analysis for statutory auditors. Developed for the HackAudit hackathon (finalist), it automates accounting document analysis (FEC, invoices) while ensuring human supervision and NEP 230 compliance.

Next.js 14 · TypeScript · Supabase · N8N · Radix UI · Tailwind CSS · pdfmake

2026

Cloud Benchmark Dashboard

Interactive analytics dashboard comparing cloud pricing and performance across 7 providers (Cloud Avenue, Scaleway, OVH, AWS, Azure, GCP) and 12 LLM providers. PDF/Excel export and Recharts visualizations.

Next.js 16 · React 19 · TypeScript · PocketBase · Clerk · Recharts · TanStack Table · Tailwind CSS

2026

Hospital Data Forecasting

Hospital activity forecasting system for Pitié-Salpêtrière using SARIMA model. Analysis of 132 monthly observations (2012-2022), COVID-19 impact modeling, and interactive Streamlit dashboard with Normal/Crisis modes.

Python · SARIMA · Streamlit · Pandas · Plotly · Scikit-learn · Statsmodels

2026

Fake News Detection

NLP-based fake news detection system with full pipeline: TF-IDF baseline, BERT/RoBERTa/DeBERTa fine-tuning, cross-dataset evaluation, and SHAP/LIME interpretability analysis. Trained on the LIAR dataset (12,800 political statements).

Python · PyTorch · BERT · Transformers · SHAP · LIME · Scikit-learn · XGBoost

2026

CAMELYON17 - Metastasis Detection

Medical AI system for detecting cancerous metastases in histopathological images (H&E). Patch-level classification with CNN (ResNet, EfficientNet) and patient-level aggregation (pN-staging), with Grad-CAM interpretability.

Python · PyTorch · ResNet · EfficientNet · Grad-CAM · OpenCV · Scikit-learn · Plotly

2025

SneakR

Complete sneaker e-commerce platform combining modern features and responsible commerce initiatives. Integrates an innovative trade-in system for sustainable fashion.

Next.js 15+ · TypeScript · Supabase · Stripe · shadcn/ui · Aceternity · kicks.dev API

2023-2024

FYNN

Technical project management, development of a mobile app with preventive vehicle maintenance (React Native, Node.js, and AWS). Creation and deployment of an AWS cloud architecture with real-time data pipeline. Solution architecture definition, WordPress website setup, LLM model integration, API testing with Postman.

React Native · Node.js · AWS · WordPress · LLM · Postman

2024

TaskMe

Requirements specification, frontend development in React, backend in Express.js, and DynamoDB database. Application hosting via AWS Elastic Beanstalk and AWS Amplify.

React · Express.js · DynamoDB · AWS Elastic Beanstalk · AWS Amplify

2024

Cloud Architecture

Digital transformation project within a consulting firm. Development of a hybrid cloud functional architecture, change management plan writing, infrastructure budgeting.

Azure · Hybrid Cloud

2023

JIP - Basketball (FIBA World Cup 2023)

73,000+ fan interactions in 2 weeks, 71.5% completion rate, 5 languages. Led the official GPT-4 chatbot for the 2023 FIBA Basketball World Cup end to end, from PoC to a 4-month launch on Facebook Messenger and web.

GPT-4 · Real-time API · Facebook Messenger · Web Widget · Multilingual (5 languages) · Project Management

2023

Supply Sync

Project analyzing data to understand the strengths and weaknesses of an import-export company. Dataset processing with Python scripts and Power BI ETL. Power BI report, summary, and conclusions.

Python · Power BI · ETL

2023

Storks

Optimization of a hospital maternity ward with a stock alert system. Study of the infant formula market, forecasting model with alert system via a Power BI report and VueJS web platform.

Power BI · VueJS

2023

Scooolize

Project to modernize the Parcoursup platform to streamline processes. Backend and frontend development in HTML/CSS and JavaScript, change management plan for students and schools.

HTML/CSS · JavaScript

2022

Back2Fest

Design of a digital solution for a festival to facilitate attendee management and optimize event organization. Problem analysis and optimization study, flow management with IoT beacons, data collection and consolidation on an SQL database. WebApp developed with NextJS, Tailwind CSS, and Directus as BaaS.

Next.js · Tailwind CSS · Directus · SQL · IoT

2022

Dataviz Studio

Analysis of various 2019 datasets on French government website traffic to identify issues and correlations. Dataset processing with Python scripts. Google Looker Studio report, summary, and conclusions.

Python · Google Looker Studio

2022

Elisa

Setting up a chatbot for e-health. Requirements specification, benchmarking and technology selection, change management plan, solution deployment.

Chatbot · e-health