Adrien Demassieux - Developer & Engineer

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About

Engineer and former CTO with 20 years of experience in mechanical engineering and software development in the nuclear industry. I design business-specific software, web applications and robust solutions tailored to industrial and digital projects.

News

(Actively) Working on a Total Energy application (Python, FastAPI, AWS).
Working on the Dry4Good industrial control app (Python, PLC integration).
Working on the Fencing Hub match-analysis platform.
(On hold) Developing FretMotion, an innovative music composition site for guitarists.

Resume

2023 Founder & Developer at AD22 FI, software programming company.
2013 Founder & CTO at NCC, stress analysis and scientific programming company.
2008 Engineer CTO at KAEFER, working on EPR.
2006 Finite element analysis engineer at CEA.
2005 Engineer's degree (MSc) in structural mechanics.

Experience

2024-now Full-Stack Developer & Software Engineer - AD22 FI, Bordeaux
- Full-stack Python web development (Django, Flask, FastAPI, AWS, GCS)
- Desktop business software with PyQt / Qt6 and SQLite
- AI integration: agents, TensorFlow, PyTorch, AI APIs
- Jupyter notebooks for time-series analysis and algorithmic trading models
- Android app development (Android Studio, .NET MAUI)
- Industrial QR-code label generation with quality tracking
- Game development with Pygame and BeeWare
2013-2023 Founder & CEO - NCC SAS, Paris & Marseille
Nuclear engineering and scientific programming.
- Founded and managed an engineering firm of 15 engineers (structural mechanics, numerical simulation)
- Led complex engineering projects for EDF, CEA, CNRS, SPIE, DALKIA, EQUANS
- Developed business software in .NET, C++, C#, Excel-VBA for mechanical & thermal calculations
- Built an internal document management platform (.NET, C++, C#)
- Developed an ERP/CRM with Airtable for company operations
2011-2013 CTO - Technical Director - KAEFER, Paris
- Supervised engineering teams and manufacturing workshops (20 engineers)
- Led technical responses and proposals for AREVA NP contracts
2006-2011 Mechanical Product Development Project Manager - KAEFER, Paris
- Design, calculation, testing, manufacturing and commissioning of an advanced thermal protection system for the EPR Olkiluoto-3 reactor primary components
- Developed scaffolding calculation software (seismic design) in Excel-VBA, then migrated to C#/.NET
- Developed thermal calculation software in Excel-VBA, then migrated to C#/.NET
- International engineering assignments: Germany, Norway, Canada
2005-2006 R&D Mechanical Engineer - CEA (Saclay)
- Numerical and experimental studies of thermal fatigue in stainless steels (CEA/DM2S/LISN research)
- Designed and set up a thermal-mechanical test bench
- Numerical simulations with CAST3M and ANSYS
- C++ scripting for laboratory equipment control

Skills

Development

Back-end: Python, Django, Flask, FastAPI
Front-end: JavaScript/TypeScript, HTML/CSS, React, Vue, Tailwind
Desktop: PyQt, Qt6, .NET, C++, C#
Mobile: Android (Java/Kotlin), Flutter, React Native, .NET MAUI
Databases: SQLite, PostgreSQL, Redis, Supabase, Firebase
API: REST, GraphQL, OpenAPI, OAuth2, WebSockets

AI & Data

TensorFlow, PyTorch, scikit-learn
RAG, LLM agents, semantic search, fine-tuning
ETL/ELT (Airflow, dbt), BigQuery, dashboards

Infrastructure

Linux, Docker, Nginx, Kubernetes
CI/CD (GitHub Actions), Terraform, serverless

Soft Skills

Leadership & team management (20+ engineers)
Project management, business development
Creative problem solving

Education

2001-2006 Engineer's degree (MSc) in Structural Mechanics - INSA Rouen Normandie
2005-2006 Engineering internship - CEA Saclay
Thermal fatigue of stainless steels | test bench design | CAST3M & ANSYS simulations | C++ lab scripting

Selected Projects

Fencing Hub - #1 Fencing Video Analysis Platform

Web platform - fencing-hub.com

Match analysis platform for fencing athletes. Statistical tracking of actions, recurring errors identification, and performance summary sheets to coach progression.

DMX Economy - Ratio Software

Python, PyQt, SQLite

Desktop application for managing and simulating financial ratios across projects. Modular database, project/ratio/simulation panels, full CRUD with sorting and printing.

Datatorq - Data Platform

Full-stack web app, Google Cloud / BigQuery

Web-based application for collecting 250+ datapoints monthly, with direct integration to a Google Cloud database.

Dry4Good - Industrial Control App

Python

Application communicating directly with an industrial PLC for an agri-food production tool. Development and consolidation of the Python-based control system.

Total Energy - Industrial Application

Python, FastAPI, Pydantic, Docker, AWS, Terraform, GitHub Actions

Cloud-deployed microservices application for an industrial project. CI/CD pipelines, containerisation, and scientific modelling.

Other Projects

QR Code Label Generator - Python, qrcode, svgwrite, PIL
Android Musical Wheel App - .NET MAUI, Xamarin, Android SDK
Trading Bots & Time-Series Analysis - Freqtrade, Zipline, Jupyter, Binance API
Racetrack Prediction Software - Python, Jupyter, web scraping
Excel VBA Financial Simulation - Excel, VBA
Word File Generator - .NET, C++, C#
Scaffolding Calculation Software - .NET, C++, C#
ERP/CRM for Small Companies - Airtable
Flask Websites - Python, Flask, Bootstrap, OpenStreetMap

Company

AD22 FI - SASU
SIREN: 980 055 289 | RCS Bordeaux | TVA: FR43980055289
ad22.dev