Sheet 01/05Mauricio Sabio · AI Engineer · Argentina
I build software that holds up.
AI Engineer with 5+ years of professional software development experience and a strong Senior Full Stack background. I build production Applied AI capabilities with RAG, LLMs, agentic workflows, and MCP, grounded in reliable software engineering.
| 01 | 5+ | years of professional software development |
|---|---|---|
| 02 | 250K+ | users on the platform |
| 03 | ~25–30% | page-load performance improvement |
Sheet 02/05Selected impact
Production AI. Senior engineering.
Applied AI capabilities built on a foundation of marketplace architecture, technical leadership, and production ownership.
| Index | Subject | Outcome |
|---|---|---|
| 01 | RAG-powered conversational product searchBuilt and evolved production marketplace search that lets users query products, characteristics, prices, availability, stock, and recommendations in natural language. | Production conversational searchRAG · LLMs · Embeddings · pgvector · LangChain |
| 02 | Agentic commerce operations & MCPBuilt authenticated, permission-scoped read/write capabilities for merchant operations through natural language, including a production MCP integration for clients such as ChatGPT and Claude. | Real merchant operations via natural languageTool calling · Agentic workflows · MCP · Structured outputs |
| 03 | Senior marketplace engineeringLed architecture and delivery across critical marketplace systems, combining distributed-system reliability, technical leadership, product decisions, and production responsibility. | ~25–30% page-load improvement250K+ users · Architecture · Reliability · Leadership |
Sheet 03/05Experience
Building production systems.
| Period | Role | Stack |
|---|---|---|
| ShopYAMay 2025 — Present | AI EngineerDrive production Applied AI initiatives integrated with existing systems, spanning RAG product search, agentic workflows and tool calling, evaluations, guardrails, and a production MCP integration. |
|
| ShopYAMay 2023 — May 2025 | Senior Full Stack DeveloperOwned complex marketplace systems across architecture, distributed reliability, product decisions, deployments, and incident response; provided technical leadership and began contributing to Applied AI alongside a Staff Engineer. |
|
| ShopYASep 2022 — May 2023 | Semi Senior Full Stack DeveloperIndependently delivered end-to-end marketplace features across frontend and backend, third-party integrations, production debugging, and reliability. |
|
| Acorde a VosMay 2021 — May 2022 | Full Stack DeveloperBuilt production full-stack e-commerce flows, including catalog, cart, checkout, payments, shipping, and orders, with continuous review and mentorship from a Senior Developer. |
|
Sheet 04/05Engineering approach
Applied AI. Full-stack foundations.
Built on a Senior Full Stack foundation, my work grew through architecture, technical leadership, and product decisions into a specialization in production Applied AI.
- AI systems
- Applied AI · RAG · LLMs · LangChain · Embeddings · pgvector · Tool/function calling · Agentic workflows · MCP · Evaluations · Guardrails · Structured outputs
- Frontend
- TypeScript · React · Next.js
- Backend & data
- Node.js · NestJS · Python · FastAPI · PostgreSQL · REST APIs · Microservices
- Production engineering
- Architecture · Domain-Driven Design · Clean Architecture · Distributed systems · CI/CD · Observability · Production reliability · Technical leadership