About Talenzo

Talenzo is an enterprise GraphRAG recruitment copilot and SaaS ATS tailored for staffing agencies managing thousands of CVs. It allows recruiters to formulate complex hiring mandates in conversational plain French or English, returning an evidence-backed, verified shortlist within seconds. ### Engineering & Architectural Highlights #### 1. Hybrid GraphRAG Retrieval Cascade - **Tri-Layer Cascade**: Combines full-text BM25 search, dense vector semantic search (`pgvector`), and a hierarchical skill ontology graph traversed via recursive SQL CTEs. - **Strict Evidence Citation**: Built on a strict "no span, no claim" contract. Every candidate qualification claim links directly to verbatim text extracted from the candidate's CV document. - **Deterministic & Auditable**: Every search run records full execution traces and snapshot revisions, allowing reproducible shortlists across team members. #### 2. Robust Multi-Tenant Backend (NestJS & PostgreSQL) - Complete tenant data isolation enforced at the database level with PostgreSQL **Row Level Security (RLS)** and cryptographic session management. - Scalable modular architecture: Clean Separation of Concerns with dedicated modules for Ingestion, Ontology Graph, Retrieval Cascade, Metering, and Entitlements. #### 3. Modern Reactive Frontend (React, Vite & MUI) - Fast, responsive user experience built with React 18, Vite, Material UI (MUI), and Framer Motion. - Real-time Server-Sent Events (SSE) streaming for conversational search feedback, progressive candidate cards, and diagnostic activity status. - Export workflows generating anonymized candidate shortlists in PDF and DOCX formats.