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/thiago.lu

Software consulting

Systems integration and automation

Since 2015 I have worked on systems integration and migration, in fintech, healthcare, e-commerce and logistics.

I use agents to automate workflows that still depend on manual operation. Each agent runs with a defined scope of autonomy and a cost ceiling.

See what I do

Focus

What I do

AI and automation

I pull together information scattered across many places and turn it into what a decision can rest on. The hard part is the limit of each agent, the cost control, and what has to be checked before it counts.

Integration and migration

I connect CRMs, ERPs, payment gateways and credit bureaus, with retry and reconciliation for when a call fails. And I move data, services and whole applications to another system without stopping operations.

Products and tools

I build the panel, the dashboard and the small application for when the spreadsheet stops holding up. Reports that stalled on volume, and internal tools so the team stops repeating work by hand.

Learn more Get in touch

Background

Who I am

11 years

I have written Rails since 2015. I spent three years leading product and came back to engineering in 2021, when I started working on my own.

2015 – 2018

Marketing automation

I built the engine that published to social networks in the team's place, and the dashboard that tracked keyword rankings, running on AWS Lambda.

2018 – 2021

Product leadership in construction software

I joined as Head of Product with a team of five and left with more than forty. The company was acquired by an ERP vendor in that period.

2021 – 2025

On my own, with clients outside Brazil

I took contracts in healthcare, credit, e-commerce and logistics, almost all of them through Toptal, migrating data and connecting systems with operations live.

2026 →

Automation with agents

I orchestrate agents that carry out work that used to be manual, and I write the MCP servers that give them access to the client's systems.

Tools

What I work with

AI Engineering

5

Anthropic API · Claude Code · MCP · Claude Agent SDK · Gemini API

Languages

7

Ruby · JavaScript · TypeScript · Python · C++ · GDScript · Solidity

Back end, APIs and front end

15

Ruby on Rails · React · Sidekiq · GraphQL · Vue · Vuetify · REST APIs · FastAPI · Hotwire · Next.js · Node.js · SvelteKit · WebRTC · Highcharts · PWA

Data

3

PostgreSQL · BigQuery · pgvector

Infrastructure and deploy

9

AWS · Google Cloud · Docker · Heroku · Ansible · NGINX · Ubuntu Server · CI/CD · Firebase Hosting

Integration, migration and guarantees

3

TDD · Contract Testing · Serasa

open to projects

What can I help with?

Leave your name and email and I will get in touch to understand what you need.

How I work 

I reply within two business days.