Open to rolesAdriano Leão - Software Engineer
Software Engineer
I build backend and AI systems that go from architecture to real users. Co-architect of GuaIA, the multimodal AI that won 1st place at the CNJ Innovation Prize 2025.
// About me
The engineer behind the systems
Goiânia, Brazil
- 1st
- Place at the CNJ Innovation Prize 2025, with GuaIA
- < 4s
- To analyze text, image, video and audio for disinformation
- 10x
- More relational database capacity, without significant added cost
- 10% → 4%
- Operational losses on a food production line, with machine learning
// Selected work
Where I owned the hard parts
GuaIA
A multimodal AI system that detects electoral disinformation across text, images, video and audio in under 4 seconds. 1st place at the CNJ Innovation Prize 2025.
TRE-GO
Software Engineer and Co-architect
ChatDoc
An AI tool that lets a public audit court's staff run semantic searches across rulings and regulations in natural language. Presented at AI.Brasil Experience.
TCM-GO
Mid-level Software Engineer
MusicPlayce Hub
A new B2C product for artists and music producers. I defined the technical roadmap, architected the NestJS backend from scratch and led the team from zero to real users.
MusicPlayce
Senior Software Engineer
// Built for fun
Systems from first principles
Side projects where I dig into how things really work: databases, compilers, engines and computer vision.
// Stack & Experience
Where I've built and what I've learned
Como Votam
Co-Founder
Aug 2025 -Present
10x more relational database capacity with a hybrid cloud migration, on a nonprofit budget
Co-founded a nonprofit civic-tech project that makes public legislative data easy to visualize and analyze. Built the automated pipeline over the Senate and Chamber of Deputies APIs, led engineering and marketing, defined the roadmap and kept a strictly technical, nonpartisan tone ahead of the 2026 elections.
MusicPlayce
Senior Software Engineer
Aug 2025 -Present
Took MusicPlayce Hub from zero to a functional product with real users
Joined as a core engineer and grew into the technical reference for the team across backend APIs, mobile and integrations. Then took ownership of MusicPlayce Hub, a B2C product for artists and music producers: defined the technical roadmap, architected the NestJS backend from scratch and led the engineering team.
TRE-GO
Software Engineer and Co-architect
Aug 2024 - Jul 2026
1st place at the CNJ Innovation Prize 2025 with GuaIA
Co-architected GuaIA, a multimodal AI system that detects electoral disinformation across text, images, video and audio in under 4 seconds. Designed and implemented the Python and NestJS services, integrated multiple databases and coordinated across technical fronts. The system has since been adopted.
TCM-GO
Mid-level Software Engineer
Oct 2024 - Jun 2026
Shipped ChatDoc and presented it at AI.Brasil Experience
Built AI-powered solutions for a public accountability institution in partnership with CEIA/UFG, working across frontend, backend, architecture, machine learning and data science. ChatDoc lets staff run semantic searches across the tribunal's decisions, rulings and internal regulations in natural language.
DMHealth
Backend & DevOps Consultant
Jun - Oct 2025
Helped the team make better engineering decisions instead of just writing the code
Technical consultant on an AI API project built in partnership with CEIA. Evaluated architecture decisions, established DevOps practices and gave hands-on guidance, focused on enabling the team rather than on direct implementation.
CEIA & AKCIT
Mid-level Software Engineer
Apr 2024 - Oct 2025
Backend for an immersive virtual replica of UFG serving dozens of simultaneous users
Designed the backend of a research metaverse: WebSocket and RESTful APIs, server-side rendering of the virtual world, authentication and role-based access control, with real-time audio, video and spatial interaction. Also integrated 3D scanners and printers into the environment via Unity and WebXR.
A+ Platform
Junior Full Stack Engineer
May 2024 - Jul 2025
Pilot with 339 students validated by the Banco Central
Helped build and scale an educational platform used in public schools across Brazil. Contributed to architecture decisions and features across the stack, focused on step-by-step logical reasoning tools and real-time classroom supervision.
Grupo GSA Alimentos
Data Scientist
Mar 2023 - Mar 2024
Cut operational losses from 10% to 4%
Applied machine learning and data analysis to the production processes of a food manufacturing plant, as a continuous improvement intern.
Freelance
Freelance Software Engineer
Jan 2022 - Mar 2023
End-to-end solutions with Go APIs on Clean Architecture, fully containerized
Delivered full-stack solutions for clients: backend APIs and services in Go with Clean Architecture, containerized with Docker, plus support on a Next.js frontend.
// What I do
Where I can add the most
NestJS✦Go✦PostgreSQL✦Docker
APIs, microservices and real-time systems designed with Clean Architecture and shipped with solid DevOps practices, built to hold up with real users.
Let's talk
Goiânia, Brazil
Open to Software Engineer roles in backend, AI and platform engineering
If you're building something that needs someone to own the technical direction, send me a message.
