Tech Lead · PhD | Building Reliable Enterprise AI
I started with chemistry. A PhD in Analytical Chemistry trained me to find structure in complex systems and never mistake a clean result in the lab for a reliable one in the field. That discipline has shaped everything I've built since.
13 years leading engineering teams at Vicens Vives Digital — from native iOS to Flutter, from mobile architecture to the platform serving 30,000+ students across Spain. Author of iOS Architecture Patterns (Apress).
Now I'm focused on a harder problem.
Enterprise RAG systems that work in production — not just in demos.
Most enterprise AI projects fail silently. The retrieval pipeline degrades. The model hallucinates with confidence. Nobody notices until the damage is done. I'm building the technical foundation and the audit framework to fix that.
| Layer | Technology |
|---|---|
| Language | Java 21 |
| Framework | Spring Boot 3.x |
| AI orchestration | LangChain4j |
| Vector database | Weaviate |
| Evaluation | RAGAs (via Python bridge) |
| Observability | OpenTelemetry + LangFuse |
| Testing | JUnit 5 + Testcontainers |
My main public project — a hands-on knowledge base for building, evaluating and auditing production-grade RAG systems.
Six modules, built and documented in public:
| Module | Focus | Status |
|---|---|---|
| 01 · RAG Foundations | Core pipeline: ingest → embed → retrieve → generate | 🔄 In progress |
| 02 · Advanced Retrieval | Hybrid search, re-ranking, HyDE | 📋 Planned |
| 03 · Reliability Patterns | Hallucination detection, confidence scoring, fallbacks | 📋 Planned |
| 04 · Evaluation Framework | RAGAs metrics, golden datasets, automated evaluation | 📋 Planned |
| 05 · Security | RAG poisoning, prompt injection, access control | 📋 Planned |
| 06 · EU AI Act | Compliance checklist, logging, technical documentation | 📋 Planned |
- Reliable Enterprise AI: Why Architecture Matters More Than Prompts
- Reliable Enterprise AI: What Enterprise Architects Must Understand About Transformers
- PhD, Analytical Chemistry — Universitat de Barcelona
- Author, iOS Architecture Patterns (Apress)
- Tech Lead, Vicens Vives Digital — 13 years
- AI for Enterprises — Wharton Executive Education
- AI for Product Managers — Duke University
- 📧 Email: raulferrer.dev@icloud.com
- 💼 LinkedIn: linkedin.com/in/raulferrerdev
- 🐦 Twitter: @raulferrerdev
- 📰 Medium: @raulferrerdev
"You can't lead the reliability of an AI system if you've never built one yourself."