***Key Responsibilities*** * Design and develop end-to-end architecture from scratch for: * Conversational AI search engine. * Intelligent recommendation system. * Implement HTML schemas + JSON-LD for products, offers, FAQs, and categories. * Create semantic content structure by entity (products, brands, use cases, components). ***Development Tasks:*** * Product catalog ingestion. * Embedding generation. * Hybrid search (traditional + vector-based). * Result re-ranking. * Conversational responses (RAG). * Build REST APIs for queries. * Integrate AI with traditional search. * Deliver source code, comprehensive technical documentation, and operational manual. * Conduct functional testing and performance optimization. ***Essential Requirements*** * 3–6 years of experience as a backend or full-stack developer. * Proven experience building AI solutions from scratch. * Proficiency in Python or Node.js. * Practical experience in: * Generative AI / NLP implementation. * Embeddings, vector databases, and semantic search. * RAG architectures. ***Strong Knowledge of:*** * REST APIs. * Git. * Microservice deployment. * Ability to work based on measurable deliverables—not just hours. Job Type: Temporary Contract Duration: 3 months Benefits: * Employee discount. * Discounts and preferential pricing. * Flexible working hours. * Life insurance. Work Location: Hybrid remote in Nuevo Repueblo, 64700 Monterrey, N.L.