Custom software, integrations and AI agents built to run in production.
I'm Hugo Minari Diniz, a senior software engineer with 15+ years shipping APIs, integrations and automation in Python, PHP, Node and React. From scope to deploy, with code your team can maintain.
What I do
Four ways to work with me. Every one starts with a call and a written proposal.
On-demand development
APIs, integrations and web systems built to last, with architecture, tests and CI from the first PR.
AI agents and Claude Code
Agents that fit your team's workflow: MCP, skills, subagents and automated review, from pilot to process.
1:1 consulting
One hour with someone who hit the same walls: context, skills, MCP and agent workflows.
Home automation and IoT
Home Assistant, ESPHome and integrations that work without a vendor app.
How it works
Scope
One call to understand the problem. You get a written proposal with deliverables, timeline and what is out of scope.
Delivery in small PRs
Every step becomes a reviewed pull request with a preview environment. You follow progress in the code, not in a report.
Handover
Documentation, CI in place and code your team can maintain without me.
Recent work
Systems in production, with the real stack of each one.
Electronic Real-Estate Registry & Digital Signature SaaS
ONR SOAP integration
Vehicle Data Lookups & Payments E-commerce
Dual-token authentication
UniCETREX: Medical education platform
6 role-based portals (admin, sales, finance, academic, professor, student)
Technology stack
From the blog
What I learn building with agents, written while it still hurts.
Have a project in mind?
Tell me the context and what is blocking you. You'll get a reply with the next steps.
Hiring for a senior role?
Open to remote roles with Brazilian and international teams.