Freelancer profile translated to English.
Back to original languageAbout Cédric
Senior Python developer specializing in FastAPI, Django, and LLM-based AI architectures, with nearly 20 years of experience in software engineering and 3 years dedicated to production AI systems.
Coming from backend development and an 8-year role as a Java/J2EE Tech Lead, I transitioned to Scrum Master and IT Project Manager roles for nearly 10 years, before refocusing on designing complex, useful, and maintainable technical systems for the past 3 years.
I design and develop concrete AI systems (RAG, agents, automation, APIs) integrated into existing tools, used by non-technical teams. My approach prioritizes reliability, readability of results, and actual usage.
English
Native or bilingual
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- Astro-SecretsAgentic AI / Data Engineer – LLM ArchitectureJanuary 2024 - Today (2 years and 5 months)• • Multi-model LLM architecture (local GPU + premium cloud) with dynamic routing.• • Implementation of RAG pipelines for enriching and structuring textual data.• • Development of a Node.js / Fastify BFF API with real-time SSE streaming.• • LLM orchestration via Flowise.• • Deployment of open-source models (Qwen) via Ollama with GPU optimization.• • Integration of OpenAI API as a premium fallback.• • Redis caching (TTL, distributed rate limiting).• • Complete security: HTTPS, API keys, firewall, fail2ban.• • Horizontal scalability (Nginx load balancer, multi-instances).• • Monitoring, health checks, structured logs, automated backups.LLM Technologies◦ · RAG◦ · Flowise◦ · Ollama◦ · OpenAI API◦ · Node.js◦ · Fastify◦ · Redis◦ · Nginx◦ · Docker◦ · CUDA◦ · Linux◦ · Vector Store◦ · SSE
- LegalPlaceLLM / RAG / AI Automation DeveloperFebruary 2025 - January 2026 (11 months)Paris, France• • Development of internal RAG pipelines for searching and utilizing legal and administrative documents.• • Implementation of structured data extraction systems from internal documents (contracts, procedures, accounting documents).• • Development of automation tools for accounting and administrative processes.• • Creation of LLM tools to assist in processing product and support tickets.• • Design of reusable AI components integrated into the company's internal tools.• • Implementation of consistency and reliability control mechanisms for LLM responses.• • Close collaboration with business teams to ensure actual adoption of developed tools.• • Design of simple interfaces facilitating the use of AI systems by non-technical users.• • Design of reusable AI components integrated into the Django backend.
- Banques / AssuranceScrum Master / Agile LeaderJanuary 2006 - January 2024 (18 years)Paris, France• IT Project Manager / Scrum Master / Agile Leader (finance, insurance, public sector) (2014-2023)• Java / Full Stack Tech Lead (2006–2013)
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Education
- Polytech Paris - UPMC2006
- Paris PMP2018