Freelancer profile translated to English.
Back to original languageAbout Nicolas
My portfolio:nick0.xyz
You have a technical project that needs to get done, not drag on. That's precisely where I come in.
Full-stack and AI engineer, I design and deliver demanding software systems, from back-end to production AI. Robust architectures, solid Python code, data pipelines, complete applications: I transform complex needs into working systems, without extending deadlines or accumulating technical debt.
My real differentiator:I go as far as complex AI systems that few profiles know how to build. Autonomous agents, LLM orchestration, computer vision, custom-designed and trained models. I master these systems from the inside out because I build them entirely, from model to infrastructure, not just by calling APIs.
What this brings you
A single point of contact covering the entire chain, from back-end to AI. You avoid coordinating multiple providers, gain speed in decision-making, and deal with someone who understands both business needs and technical depth.
My services
Back-end and systems engineering: architecture, APIs, performance, production Python, data pipelines.
Full-stack development: Django/FastAPI back-end, React/Next front-end, complete applications.
AI systems: autonomous agents, LLM integration, computer vision, model design and deployment.
Expertise and recovery: technical audits, architecture choices, taking over complex or blocked projects.
Stack
Python, Django, FastAPI, Node.js, React, Next.js, TypeScript, Swift/SwiftUI, SQL/PostgreSQL, data pipelines, REST API, PyTorch, machine learning, LLM and agents, Docker, CI/CD, Git, AWS and GCP.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- 20n Research LaboratoryFounder & Lead AI EngineerRESEARCHDecember 2025 - Today (8 months)Paris, FranceI run 20n Research Laboratory, a deep tech research project building a brain-inspired AI architecture for motor control. Day to day, I design and implement complex systems end to end, solo: software architecture, machine learning, data pipelines, and demanding Python code. I built the entire technical infrastructure and experimental methodology myself, with real engineering discipline and a sustained delivery pace. That's exactly the level of execution I bring to every mission.
- PAACTCo-Founder & Lead iOS EngineerSOFTWARE PUBLISHINGJanuary 2026 - March 2026 (2 months)Paris, FranceI designed, built, and shipped a fully functional iOS app in exactly 7 days, winning Innov Hack Paris 2026. Working solo in Swift and SwiftUI, I took it from rough prototype to a polished, production-ready product with full UI, app logic, and data layer. PAACT proves what I can deliver under tight deadlines without ever cutting corners on quality.
- Friday IntelligenceFounder & Lead Engineer (AI Agents)TECHSeptember 2025 - February 2026 (5 months)Paris, FranceFriday was an autonomous macOS AI agent I built to operate a computer like a human user. It could see the screen, understand any interface, and control the mouse and keyboard to run complex workflows across multiple apps. I trained a custom 82M-parameter vision model running inference at 46ms for real-time screen perception and UI grounding. It proves I can architect and ship advanced AI systems from the model up.
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