01. About
About
I have been building software since 2020, after eight years in support. Today I ship web products, mobile products, and system integrations at Sistema FIERGS.
Sistema FIERGS
At Sistema FIERGS since 2023, on web products, mobile products, and integrations.
Web and mobile
React, Next.js, NestJS, Laravel, and React Native in the day-to-day work.
From support to development
Eight years in support. Software development since the end of 2020.
“Lucas is an extremely intelligent developer and always willing to collaborate. I had the chance to work with him when I was an analyst at Delta Global, and his dedication and initiative made a real difference in how the projects moved forward. A talented professional and a true team partner.”
02. Skills
Skills and technologies
Technologies and tools I use to build complete solutions
Backend
Frontend & Mobile
AI & Automation
Tools & Others
03. Experience
Professional Experience
Five years of software development. The earlier support work sits on a single line.
Full Stack Developer
Sistema FIERGS
Internal products used by operations: web, mobile, and the integration between systems.
Full Stack Developer
Delta Global
Internal systems for fleet operations, including Randon Smart.
Full Stack Developer
OAB/RS
Internal systems for the section, in place of a rented finance product.
Junior Developer
Grupo Bigfer
Rewrite of an internal system that ran on PHP and MySQL.
Junior RPA Developer
Infocap TI
Built and kept RPA robots on a proprietary framework, focused on reliability in production.
Junior Developer
Veppo Cia
Back end, SQL queries, and maintenance of systems in COBOL, PHP, and JavaScript.
IT support and maintenance
Veppo Cia · TJRS · DAER-RS
Service desk, on-site and remote support, and equipment maintenance, before the move into development.
Education
Postgraduate Degree in AI Engineering
Data Science Academy
2025–2026
Systems Analysis and Development
ULBRA
2019–2023
Recent certificates
- PlaywrightUdemy · 2025
- Next.js App Router and TestingRocketseat · 2025
- Introduction to subagentsAnthropic · 2026
04. Cases
Cases
Three pieces of work. The problem, what I did, and the stack. Course exercises stay on GitHub.
Sistema FIERGS, since 2023
Internal products at Sistema FIERGS
Operations depend on internal products that cross web, mobile, and systems that were already there.
I build these products end to end: the interface, the service, and the integration between them.
OAB/RS, 2021 to 2022
In-house finance module
The section paid a yearly fee for a rented finance system and was going to end that contract.
Within about four months I took on the main deliveries. I built the finance module that replaced that system. When the team left, I guided the people who arrived on keeping the internal systems running.
Delta Global, 2022 to 2023
Randon Smart and microservices
Fleet operations needed the internal systems, a desktop product, and the message flow between services to move forward.
I evolved the web systems, built desktop apps on Randon Smart, and maintained queued microservices.
05. Featured
Featured projects
Two work products with a public site, and one personal open source project.
Delta Global for Randon Implementos
Randon Smart
2022 to 2023
Fleet telemetry platform for semi-trailers, with real-time tracking, an onboard scale, tire pressure, geofencing, and maintenance. I was responsible for the web platform and built it with the team, from architecture to deploy. Launched at Fenatran 2022.
Personal, open source
AI calendar agent
2026
An agent that creates, lists, reschedules, and cancels Google Calendar events. In n8n, the agent calls an MCP server in the same workflow, with four calendar tools. It runs with Docker Compose, using Gemini on the free tier or Ollama on the machine.
06. Projects
Personal projects
Public GitHub repositories. A demo link shows up only when the repository has its own page.
07. Contact
Get in Touch
Open to opportunities in web and mobile development.