Josué Barros

About

Senior engineer who ships across the stack — frontend, backend, data and AI.

I'm Josué Barros, a software engineer from Brazil with 8+ years building production systems for enterprise teams in the US and Latin America — from e-commerce performance at Sephora to analytics platforms on Snowflake and Databricks.

I work async-first with an AI-assisted delivery workflow — spec, plan, implement, test, review — so teams get well-tested pull requests, clear written updates, and fewer surprises in production.

Selected results

65%

faster homepage render on a global e-commerce platform serving millions of users

15s → 2s

dashboard filter load time on an enterprise analytics platform, via Redis caching

−30%

infrastructure cost and deploy time after moving a data platform to Terraform + Azure DevOps

−40%

mean time to recovery on high-volume insurance systems, with Prometheus + Grafana

Companies I've built for

What I work with

AI Engineering
AI agents, MCP, RAG, LangGraph, Claude, OpenAI, vector databases
Data
Snowflake, Databricks, PySpark, Power BI, Microsoft Fabric, Airflow
Backend
Python, FastAPI, Java, Kotlin, Spring Boot, C#, .NET, Go, Node.js, Kafka, Redis
Frontend
React, TypeScript, Next.js, Angular, React Native
Cloud
Azure, AWS, GCP, Kubernetes, Terraform, CI/CD, OpenTelemetry

Certifications: Microsoft Azure Fundamentals (AZ-900) · AWS Certified AI Practitioner

Hiring a senior engineer?

Book a short intro call — I'll send my full resume beforehand.

LinkedIn