I'm Luis Henrique. I build the backend of a legal and financial automation platform: queues, document extraction and per-tenant isolation, on public portals that change without notice.
Core stack Python, FastAPI, Django, PostgreSQL, RabbitMQ, Celery, Docker, Linux, AWS.
What I work on, and the evidence behind each item. Everything below runs in production.
Many processes in parallel without stepping on each other. Coordination, isolation and controlled failure.
In production
Long jobs leave the request. The API accepts, the queue absorbs, workers execute.
In production
A stable contract in front, freedom to change behind it.
In production
Documents nobody designed for machines, turned into structured data.
In production
Tenant isolation in the database, not in the application.
In production
What retries, what shuts down cleanly, and what warns you before a user does.
In production
Four rules, each one learned by breaking something.
A constraint or an access policy cannot be forgotten; a where clause can. Where one mistake is already too expensive, the rule belongs in the schema.
A crash becomes a ticket the same day. Wrong data crosses the system and comes back as a loss weeks later, when nobody remembers the deploy.
A new integration should add a file, not edit the one everybody imports. Indirection costs, and only pays off where change is frequent.
Without a limit, one broken dependency consumes the whole queue. Limits are what make a system degrade instead of stop.
Backend engineer, currently at Homma Capital. Before that, two years as a tax consultant at KPMG.
I moved from accounting into engineering, and that crossing is why I read a process before automating it. When a system handles court payments, taxes or a monthly close, a wrong number is a loss, not a bug. I study Systems Analysis and Development at PUCPR.
Python
FastAPI
PostgreSQL
MongoDB
AWS
NextJS
React
Homma Capital · Jul 2025 - Present
Backend engineer on the legal and financial automation platform, from API design to the agents that run in production.
KPMG · Nov 2022 - Feb 2025
Two years reviewing tax and accounting processes for large clients, the exact domain I automate today.
The Church of Jesus Christ of Latter-day Saints · Feb 2019 - Feb 2021
Two years of full-time volunteer service, including training and coordinating other volunteers.
Jan 2025 - Jun 2027
Jan 2021 - Dec 2024
2025
2025
Production systems I designed and built. Each one covers the problem, the architecture, the decisions and what I would change. University work is marked as such.
Working on something similar?
Let's talkOpen to backend and distributed systems work. Tell me what you are building and which part is hard.
Prefer another way? Find me here.
