Service
Freelance AI Developer for Production LLM Systems
I build and integrate AI that ships: ChatGPT and Claude APIs, RAG pipelines, agents, fine-tuning, and MLOps — Paris-based, remote across Europe and worldwide.
Who this is for
- Product teams adding AI features to an existing SaaS product
- Founders who need a senior AI engineer without a full-time hire
- Enterprises piloting LLM workflows under GDPR or EU AI Act constraints
- Agencies needing a hands-on AI developer for a fixed-scope build
- Teams migrating from prototypes to production-grade AI infrastructure
What's included
- LLM selection and integration: OpenAI, Anthropic Claude, Mistral, Gemini, open-source models
- RAG pipeline design: chunking, embeddings, vector stores (pgvector, Qdrant, Pinecone, Weaviate)
- AI agents and agentic workflows with guardrails, tool use, and observability
- Prompt engineering, eval harnesses, and cost/latency optimisation
- Fine-tuning and domain adaptation when retrieval alone is not enough
- MLOps: deployment, monitoring, CI/CD for models, Docker/Kubernetes on AWS, Vercel, OVHcloud, Scaleway
- Documentation and handover so your team can maintain what we build
How we work
- 1
Scoping call (60 min)
Map the use case, data constraints, quality bar, and timeline. Fixed quote or day-rate engagement.
- 2
Architecture & spike
Validate the hardest technical risk first — retrieval quality, latency, compliance, or model choice.
- 3
Build & iterate
Weekly demos on staging. Async updates. Scope changes via written change requests.
- 4
Production launch
Deploy, monitor, document. Optional post-launch support window.
Outcomes you can expect
- Production AI features your users can rely on, not a demo
- Clear cost model for inference and infrastructure
- Eval metrics and guardrails you can show to compliance or investors
- Code in your repo from day one — no black box
- Path to sovereign or self-hosted deployment if regulation requires it
Pricing
Day rate
from €700/day
Typical for embedded AI development sprints.
Fixed-scope project
from €5,000
Scoped after a paid discovery call. MVP-scale builds often €7k–€25k.
All prices exclude VAT. EU B2B clients with a valid intra-community VAT number benefit from reverse charge.
Frequently asked
Freelance AI developer vs Fractional CTO — which do I need?
An AI developer builds and integrates AI systems hands-on. A Fractional CTO sets technical strategy, leads teams, and owns the roadmap. Many engagements combine both: I build the first production AI feature, then stay on as Fractional CTO to scale the team.
Do you work remotely?
Yes. Remote-first across Europe, UK, US, and GCC. On-site in Paris and Île-de-France when useful for workshops or stakeholder sessions.
Can you work with our existing stack?
Yes. React/Next.js, Python/FastAPI, Node.js, Postgres, and major cloud providers. I adapt to your conventions rather than imposing a greenfield stack unless that is faster.
GDPR and EU AI Act — can you build compliant AI?
Yes. See also my Sovereign AI service for EU-hosted LLMs, data residency, and compliance architecture. Many AI developer projects start on US APIs and migrate to EU infrastructure as requirements tighten.
Let's discuss your project
Book a free 30-min discovery call. No payment, no deck, no follow-up sequence. If AI isn't the right answer for your problem, you'll know inside the call.