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Youssef Mehili

Freelance Software Engineer — Full-stack, Integrations & Applied AI

Lyon, France
youssefmehili@gmail.com
+33 7 83 75 27 53
GitHubEmail
Backend / APIs / MicroservicesAI & workflow automationWeb / Mobile / SaaSIoT / On-premise / Technical softwareAvailable now • Full remote worldwide

About

I help startups, SMEs and technical teams design, strengthen or modernize software products—from a backend or SaaS feature to a mobile application, an IoT platform, an AI workflow or technical C++/Python software. I am available for fully remote work worldwide.

My public work includes software modernization at the Tunnel Study Center (CETU), AI and systems experiments, and open repositories that make parts of the approach checkable. Confidential work remains protected.

I bring a product and delivery perspective: I care about the business problem, the delivery risk and the result, not only the stack.

What I can ship

Choose a focused intervention or combine them into a complete delivery.

Automate a business workflow with AI

Map a repetitive process, select the right model and connect a secure agent or RAG system to the tools your team already uses.

Audit + proof of concept + production roadmap

Build or strengthen a backend

Design APIs, microservices and integrations that stay understandable and reliable as the product and team grow.

FastAPI / NestJS / Node.js delivery with Docker and CI

Modernize technical software

Improve calculation, simulation, rendering or migration software with a pragmatic mix of C++, Qt, Python, performance work and UX improvements.

Performance diagnosis + modernization plan + implementation

Ship a web, mobile or SaaS product

Build a customer-facing application or internal tool end to end, from data model and APIs to responsive web or mobile interfaces.

Full-stack delivery with a clear scope and deployable increments

Prototype a data, IoT or R&D product

Turn a technical idea into a demonstrable prototype using computer vision, machine learning, robotics, IoT data flows or simulation.

Technical prototype + evaluation pipeline + next-step plan

Experience

Tunnel Study Center (CETU) — Ministry of Transport

Jul 2024 – Mar 2026
Software Engineer
Lyon, France
  • Modernized safety-critical tunnel lighting software using C++, Qt, and Python, with additional work in an embedded Linux environment.
  • Worked on calculation and rendering paths through optimized visibility algorithms using physics-based light modeling techniques.
  • Contributed to backend modernization and UX improvements using Python, C++, and simulation workflow optimization.

Projects

Tunnel Lighting Software

Supported lighting sizing for French tunnels through safety-critical software using C++, Qt, Python, and embedded Linux.

C++QtPythonEmbedded Linux

Public reference + pictures available.

R-Type

Enabled multiplayer gameplay across 2D and 3D worlds through a game engine with Unreal-like capabilities using C++.

C++

Work in progress.

AREA

Automated workflows across web and mobile interfaces through an n8n-like application using FastAPI, Python, Next.js, Tailwind, React Native, and React.

FastAPIPythonNext.jsTailwindReact NativeReact

Zappy

Enabled real-time competition between autonomous teams through a distributed multiplayer strategy game with real-time visualization using C++ and Python.

C++Python

Raytracer

Rendered complex 3D scenes with physically based lighting through a high-performance distributed ray tracer using C++.

C++

AI Models

Accelerated experimentation across language, vision, and reinforcement-learning models through reusable training and evaluation pipelines using Python and PyTorch.

PythonPyTorch

Neuromorphics Course

Expanded access to neuromorphic computing through an open-source course with hands-on spiking neural network exercises using Python and PyTorch.

PythonPyTorch

My GPT-2

Deepened practical understanding of LLM architecture through a GPT-2 implementation and training pipeline from scratch using Python and PyTorch.

PythonPyTorch

SWERC 2025

Participated in the SWERC 2025 regional programming contest through team-based algorithmic problem solving using C++ and Python.

Competitive ProgrammingC++Python

Selected public projects are shown above. Confidential work can be discussed without sharing protected code, data, or screenshots.

Read the case studies

Skills & Interests

Technologies

PythonPyTorchCC++TypeScriptNest.jsNode.jsReactNext.jsDocker

Strengths

Artificial IntelligenceFull-Stack Web DevelopmentLow-Level Development

Languages

FrenchEnglishArabic

Interests

CodingPoliticsPhysicsMathematics

Certifications

Cambridge C1 Advanced

Education

EPITECH — European Institute of Technology

Expected 07/2028
Software Engineer — Master in Computer Science
Lyon, France

Have a project in mind?

Let’s identify the smallest useful first step.

Send me the context, the current bottleneck and your target date. I’ll reply with a concrete first proposal.

© 2026 Youssef Mehili. All rights reserved.