Skip to content
View leonardorb's full-sized avatar
Shipping.
Shipping.
  • Winter Garden, FL
  • 13:57 (UTC -04:00)

Block or report leonardorb

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
leonardorb/README.md

Leonardo (Leo) Barbosa

Software architect. Twenty years building scalable, reliable systems end to end: infrastructure, databases, APIs, and the interfaces on top of them.

I have architected production systems on AWS, GCP, and Azure, written backends in Node.js and Ruby on Rails, and built frontends in React, React Native, and Vue.

Architecture and AI

I design and build agentic systems: MCP servers, subagents, hooks, tool orchestration, and multi-agent workflows.

My work spans Anthropic, OpenAI, Google, and open-weight models, driven through Claude Code, Codex, Cursor, and Copilot. I build integrations to be provider-agnostic and to meet production constraints: cost ceilings, latency budgets, and compliance boundaries.

Stack

Area Technologies
Languages TypeScript, JavaScript, Ruby, Swift, Python, PHP
AI LLM integration, agentic workflows, MCP, RAG, model routing, evaluation harnesses, vector search
Backend Node.js, Ruby on Rails, Express, GraphQL, Apollo, Postgres, Redis, BullMQ
Frontend React, React Native, Next.js, Vue, Redux, Tailwind
Data PostgreSQL, MySQL, MongoDB, Firestore, Cosmos DB, DynamoDB, Elasticsearch
Platform Docker, Terraform, Kubernetes, GitHub Actions, Fastlane, Datadog

Cloud

Provider Services AI
AWS ECS, Fargate, Lambda, EKS, S3, RDS, Aurora, DynamoDB, SQS, EventBridge, Step Functions, CloudFront, API Gateway, Cognito, CDK Bedrock, SageMaker
GCP Cloud Run, Cloud Functions, GKE, Firestore, Cloud SQL, BigQuery, Pub/Sub, Cloud Tasks, Cloud Storage, Secret Manager, Firebase Auth Vertex AI, Gemini API, Document AI
Azure App Service, Container Apps, Functions, AKS, Cosmos DB, Azure SQL, Blob Storage, Service Bus, Event Grid, Entra ID, Key Vault, ACR, Application Insights Azure OpenAI, AI Foundry, AI Search
Vercel Edge Functions, ISR, Blob, Cron, Analytics AI Gateway, AI SDK
Cloudflare Workers, R2, D1, KV, Durable Objects, Queues Workers AI, Vectorize
Supabase Postgres, Auth, Realtime, Storage, Edge Functions pgvector
Neon Serverless Postgres, branching, autoscaling pgvector

Industries and compliance

Healthcare, life sciences, commerce media, retail, and high-volume consumer platforms.

Standard Where
HIPAA Patient and provider platforms, PHI at rest and in transit
21 CFR Part 11 Validated quality-management systems
SOC 2 Multi-tenant SaaS, audit evidence pipelines
ISO 9001 Documented engineering process

Pinned Loading

  1. backend-postgres-typescript-node-express backend-postgres-typescript-node-express Public

    ⚡ PostgreSQL, TypeScript, Node.js and Express.js Stack

    TypeScript 74 20