Gattune Labs
Senior engineering from Latin America,
for companies in the US and Europe.
We are an engineering studio based in Brazil that partners with product teams across the United States and Europe. Our model is simple: you get senior, full-stack developers who work in your timezone, understand your stack, and ship production-grade code — at a fraction of the cost of local hires.
From React and Next.js frontends to Node.js backends, AI-powered workflows to data pipelines — we embed directly into your team. No handoff friction, no translation layer. Just engineers who build, communicate clearly, and deliver.
We've built analytics platforms for agribusiness, healthcare SaaS products, CRM integrations for retail, and AI agents that talk to your data. Our clients range from early-stage startups to established enterprises looking to scale efficiently with Latam talent.
Founder
Hi, I'm Calebe. I founded Gattune Labs after 14+ years building production systems for companies across Brazil, the US, and Europe. I work across the full stack — React, Angular, Vue.js on the front; Node.js, NestJS, Python on the back — with a deep focus on AI-powered workflows: chat agents, agentic tools, and generative-AI integrations.
I started Gattune Labs because I saw the gap firsthand: companies need senior engineers who can ship autonomously, and Latin America has them. I bridge that connection — timezone-aligned, English-fluent, production-ready.
Uberlandia, MG, Brazil — Serving clients worldwide
Experience
- Created an API environment integrating external services and multiple databases for a React Native mobile app
- Optimized database queries to boost application performance
- Synchronized third-party ERP/CRMs with analytics platforms and mobile applications
- Built a web-based admin interface for managing React Native app views
- Frontend for healthcare SaaS (Vapi) — Next.js 16, React 19, PostgreSQL, Drizzle
- Redesigned UI and navigation with shadcn/ui
- Built call simulator with Vapi SDK, live transcripts, and E.164 formatting
- ~20K LOC across 20+ PRs, end-to-end ownership
- Engineered multiple business-intelligence technology solutions
- Designed real-time workflows with WebSockets
- Migrated MySQL to ClickHouse for large-dataset query performance
- Built an AI agent for chat/workflow with direct dataset interaction
- Implemented isolated Python notebook environments per user
- Hands-on lead, actively contributing production code
- Salesforce solutions for retail inventory management using Lightning components
- Integrated SAP APIs with the Salesforce panel
- Designed a digital registration platform for course and academic record management
- Built step-by-step workflows and resource upload with reverse proxy for Salesforce
- Built analytics mapping tools, project management dashboards, and sales pipelines
- Migrated backend from CodeIgniter to Laravel; frontend from AngularJS to Angular 2
- Hybrid mobile applications for Android with Cordova/Ionic, Angular, and SQLite
Projects
Skills
Education
Thesis: Intellectual Property Law and Ethics in the Digital Age. Transitioned to software development after graduation — bringing a unique perspective on compliance, IP, and digital ethics to engineering work.