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Services · 6 projects
Custom systems
Portals, dashboards and internal tools with your business rules in code: forms that fill themselves in, approvals, orders and monitoring. In FastAPI, Node.js and React, or in Power Apps when it fits better.
Projects
- Immigration case portal + CRM
Questionnaires that fill in official USCIS forms: AI drafts, the team reviews and approves.
Immigration services · USA · In production · 2026 - Private stock and crypto monitor
A radar of candidates and signals built on the client’s own indicators, with charts and phone alerts.
Finance · private use · In production · 2026 - A match monitor in Node.js, refactored
Tracks 6 leagues and spots patterns, with a filterable history and alerts that open, update and close on their own.
Sports · Brazil · Delivered · 2026 - Catering orders in Power Apps
A flow reads PDF quotes, loads them into Excel and shows every order on a status board.
Catering · Colombia · Delivered · 2026 - Task workflow with approvals in Power Apps
A Kanban board with automatic notices and approvals on SharePoint, ready to import.
Operations · Brazil · Delivered · 2026 - Web3 community platform
A community dashboard with wallet sign-in (MetaMask, WalletConnect) and real-time analytics.
Web3 community · Delivered · 2025
Built with
- FastAPI
- React
- TypeScript
- MySQL
- OpenAI
- SQLite
- VPS
- Node.js
- Express
- SQL
- Power Apps
- Power Automate
- Excel
- SharePoint
- PostgreSQL
- Ethers.js
What the client said
“Federico is excellent at everything… I’ve rehired him several times and every time his work gets better. We have several projects and will keep hiring him.”
“A very professional guy, delivered on time and did a great job.”
How I work
You tell me the problem · < 24 h
In writing, at your pace. Within 24 h you get a diagnosis: what is worth building and what isn’t.
Fixed proposal · 24–48 h
Fixed scope, price and timeline, in writing. You pay per milestone, protected by Workana until each delivery.
Progress you can see · Every week
A live test link from week one: you see every step and weigh in along the way.
Full handover · At the end
Code, access and domain in your name, with a guide to run it. Later adjustments, covered.
Need something like this?
Tell me your problem: within 24 h I’ll write back what to do, how long it takes and what it costs. No calls.