Case 06 / 10 · SaaS
SPDA Expert
A web platform for electrical engineers to inspect, calculate and issue lightning protection (SPDA) reports under ABNT NBR 5419, from the rooftop to the signed PDF.
- Client
- SPDA Expert
- Industry
- Electrical engineering · Brazil
- Service
- SaaS Development
- Status
- In development
- Timeline
- Jan–Feb 2027

01 · Context
Lightning protection reports are still done with a clipboard on the roof, a spreadsheet at the office and a lot of back-and-forth between the technician and the engineer in charge. The goal was to take the inspection from the field to the signed report without losing information along the way.
02 · Solution
We designed and are building a responsive web platform: the technician runs a guided inspection on the phone, with a photo and GPS for each item of the standard; the PROTEC and SEV calculations run on a custom engine; AI drafts the report and the engineer in charge reviews and signs it digitally. Four roles, each with its own permissions.
03 · In numbers
93
screens built in Next.js, for phone and desktop.
254
automated tests across the back-end packages.
32
NBR 5419 items in a zone-guided inspection checklist.
Services and technologies
- Next.js
- Hexagonal monorepo
- NBR 5419
- Digital signature
- AI-drafted reports
04 · Project slides
04 / 04





