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Jesus Estrada

@jesusestrada

AI Data Engineer at Wizeline who built production RAG pipelines and agentic workflows for client products.

At Wizeline, I built production RAG pipelines that give users grounded, cited answers from client document stores, and designed LangGraph workflows with tool calling and human-approval gates. I also implemented MCP servers and added LangFuse tracing and cost monitoring for client products.

At Mercado Libre, I architected event-driven order and payment data flows and productionized RAG features for marketplace services. Earlier, at Google, I built Go services and analytics pipelines on Google Cloud, and at Thoughtworks I implemented Spring Boot features and React components for client teams.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Wizeline

Jul 2025 - Sep 2026 (1 year 2 months)

Built production GenAI features and agentic workflows on AWS, including RAG pipelines, LangGraph agents, and MCP servers. Delivered Python and TypeScript services with Terraform and GitHub Actions, and mentored client engineers.

Python fastAPI PostgreSQL Pgvector AWS Terraform GitHub Actions LangGraph Langfuse MCP Pytest

Senior Solutions Architect

Mercado Libre

Jan 2024 - Jun 2025 (1 year 5 months)

Architected event-driven data flows on Kafka and SQS with idempotent consumers and outbox pattern. Productionized RAG over vector databases and defined reference architectures and ADRs for data ownership.

Python Go PostgreSQL DynamoDB Kafka Amazon SQS AWS Terraform GitHub Actions OpenTelemetry RAG Pipeline

Software Engineer

Google

Jan 2021 - Nov 2023 (2 years 10 months)

Built Go services on GKE and Cloud Run with Pub/Sub for asynchronous processing. Designed Firestore and BigQuery data models and integrated Hugging Face inference models for classification and ranking.

Go BigQuery Firestore GCP GKE Pub Sub Cloud Build Testifying Playwright

Software Engineer Intern

Thoughtworks

Jul 2019 - Dec 2020 (1 year 5 months)

Implemented Spring Boot REST features with TDD and pair programming. Built React components with Jest tests and contributed to Jenkins and Docker build pipelines.

Java Spring Boot React PostgreSQL Docker Jenkins JUnit5