Projects

Each page below explains what the system does, who uses it, what I did and the decisions behind it. Where there are real screens or videos, they are on the page.

NavBus
Ticket sales, fleet operations and payments for bus and boat operators in northern Brazil. Tens of thousands of passengers, with thousands of tickets issued every day.Solutions architecture and technology leadership, Starnorte. 2026 to todaySee the NavBus project
CAD-RUA
A shared case record for street outreach teams, shelters and city coordination, funded by FAPERJ under Call 34/2025.Project coordinator and architect. April 2026 to presentSee the CAD-RUA project
Transworld
The tracking and ERP system I built for an international moving company in 2006 still runs it. In 2026 the company brought me back to design the next generation.Development and IT manager, then consultant. 2006–2011 and 2026 to todaySee the Transworld project
Tá Liso
A marketplace for the local shops of several cities in Pará, with delivery. Tá Liso has since evolved into Tá Entregue, which is still running.Co-founder and solutions architect. 2022–2025See the Tá Liso project
ProElas
An app and a municipal response center for women facing domestic violence, with the woman's own protection network in the loop.Idea and architecture, Starnorte. 2024–2025, new version in developmentSee the ProElas project
ViverCart
A touchscreen on the supermarket cart that plays the offer of the aisle it is in, with space the store can sell to brands.Solution architect, StarnorteSee the ViverCart project
Um Novo Caminho
A guide app to treatment and shelter services for a Rio de Janeiro City Hall program.Developer. 2018See the Um Novo Caminho project

Vivermídia, a digital signage network I created at Starnorte, reached 28 display points around Belém before it was discontinued.

Startup projects

Before Starnorte, I founded two startup projects and was CTO of both.

Founder and CTO, January 2013 to January 2022. Startup project, technology for live events.

Leafmotion put the audience on the big screen. During an event, it picked up the Instagram and Twitter posts made with the event's hashtags, sent them to a moderator and showed the approved ones live on the venue's screens and on a web page. Moderation worked on any device, and the organizer got reports during and after the event.

See Leafmotion at WebFestValda and other events, with the videos

Frame from the Leafmotion video at WebFestValda 2016

Founder and CTO, May 2019 to January 2022. EdTech startup project.

Educação Interativa built digital and mobile platforms to extend a school's reach beyond the classroom. They used personalized content and game mechanics. The idea was to connect students, teachers, principals and parents in something close to a social network for each school.

I took care of the concept and the institutional side, and I was in charge of all the technology.

In 2019 I gave two talks about the project. One was at Edutech 2019 in Valinhos, São Paulo. The other was at the 10th Pará State Science, Technology and Innovation Fair in Belém, in October, about using the platform in public schools.