Calebe Aires

Senior Full-Stack Engineer
based in Brazil, working worldwide.

I'm a senior full-stack engineer with 14+ years of experience building production systems for companies across Brazil, the US, and Europe. I work across the full stack — React, Next.js, Vue.js on the front; Node.js, NestJS, Go, Python on the back — with a deep focus on AI-powered workflows: chat agents, agentic tools, and generative-AI integrations.

I've built analytics platforms for agribusiness, healthcare SaaS products, CRM integrations for retail, and AI agents that talk to your data. I embed directly into product teams — no handoff friction, no translation layer. I build, communicate clearly, and deliver.

Timezone US & UK overlap (ET / CT / PT & GMT)

Stack React, Next.js, Node, Go, TypeScript, AI/LLM, Claude Code

Contract Available via Gattune Labs (Brazilian entity)

Uberlandia, MG, Brazil — Serving clients worldwide

Experience

Beelong / 2021 – Present

Full Stack Engineer, Contractor

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

Taxo / 2026

Frontend Developer

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

Gaio DataOS / 2016 – 2025

Full Stack Engineer & Engineering Lead

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

Codenato / 2019 – 2021

Full Stack Engineer, Contractor

Salesforce solutions for retail inventory management using Lightning components
Integrated SAP APIs with the Salesforce panel

University of the Nations / 2018 – 2025

Full Stack Engineer, Annual Sprint Contractor

Designed a digital registration platform for course and academic record management
Built step-by-step workflows and resource upload with reverse proxy for Salesforce

Lince / 2015 – 2016

Full Stack Developer

Built analytics mapping tools, project management dashboards, and sales pipelines
Migrated backend from CodeIgniter to Laravel; frontend from AngularJS to Angular 2

Early Development / 2010 – 2014

Software Developer

Hybrid mobile applications for Android with Cordova/Ionic, Angular, and SQLite

Projects

AgroTroca

React, WebSocket, RPC, Tailwind CSS

Real-time agribusiness platform SPA with WebSocket connectivity and RPC-based data layer.

Gaio Platform

Vue.js, ClickHouse, Python, WebSockets

Business intelligence platform with cognitive analytics, real-time pipelines, and AI chat agents.

Project Management Clone

Vue.js, Convex

Linear.app-inspired task management tool with real-time sync via Convex backend.

ClickHouse TCP Driver

Node.js, Binary Protocol

Open-source Node.js library implementing ClickHouse's binary TCP protocol for direct connectivity.

Gin + React Monorepo

Go, Gin, React 19, Vite, Tailwind CSS, shadcn/ui, Authula

Production-ready Go monorepo that pairs a Gin API with React 19. Built for teams scaling beyond Node — Go's concurrency and type safety on the backend, React's ecosystem on the front, all in one repo with auth baked in.

Immunotec Mobile App

React Native, React.js

Led and built React-based web admin and mobile apps for real-time insights, predictive analytics, and organizational performance tracking.

i-Varejo – Out-of-Stock Management

Angular, Node.js, MySQL

Retail inventory management app that prevents stockouts and lost sales with efficient controls, charts, and reports for easy analysis.

GitHub

15 Years on GitHub

60+ Repositories

8 Open Source

Achievements

Pull Shark x3 Starstruck Pair Extraordinaire Quickdraw YOLO

Skills

Frontend

React Next.js React Native Vue.js Nuxt Angular TypeScript TailwindCSS HTML/CSS

Backend

Node.js NestJS Express.js Bun.sh Python PHP / Laravel WebSockets

Data & Cloud

PostgreSQL ClickHouse MongoDB MySQL Supabase Convex Docker Azure GitHub Actions

AI & Tooling

Claude Code Langchain Mastra.ai AI SDK OpenAI Vapi Audio API Chat Agents

Salesforce

APEX Lightning Web Components SOQL Salesforce Platform

Education

Federal University of Uberlandia (UFU)

Bachelor of Laws (LL.B.)

2002 – 2009

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.

Recognition

2018 Visa Acceleration Program — Growth

2017 GoMinas Pre-Acceleration Program

Languages

English

Fluent (C2)

Portuguese

Native

Contact

in/calebeaires

GitHub

calebeaires