Junior AI Full-Stack Developer

About Concurrences Mission: "Connecting Antitrust People." The global platform for competition law — 20+ years, 150+ countries, ~50,000 professionals. Lawyers, economists, judges, regulators, academics: all shaping competition policy. We started as a challenger taking on established players. That DNA hasn't changed — now we're building with generative AI. What drives us: Excellence — scientific rigor and editorial quality in everything we publish. Innovation as a driving force — pioneering new formats, anticipating industry trends, now building with generative AI. And a global community connected through high-level dialogue and best practices shared across borders. What You'll Build You own RAG infrastructure for 330–430K legal documents. Chunking pipelines. Vector database tuning. API components. Real systems, real lawyers depend on it. Concrete work: Intelligent chunking for French court decisions (preserve precedent hierarchy) Weaviate integration, embedding strategy optimization, semantic search at scale RAG components: retrieval → reranking → context → LLM calls Evaluation infrastructure so domain experts measure correctness, not just plausibility Ship 3–5 features in month one Tech: Python, FastAPI, Weaviate, PostgreSQL, GCP. Plus: CrewAI/LangGraph/LlamaIndex, Pulumi/Terraform. A Typical Week Monday: Debug chunking pipeline mangling PDFs. Propose fix, pair, ship it. Tuesday: Embedding model struggles with French legal terms. Document, propose mitigation. Wednesday: Desi