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Full-Stack Developer · Curitiba, Brazil

Software, web, mobile, and automation solutions for your business

I'm Luís Otávio, full-stack developer at Wired Layer Co. in Curitiba, Brazil. I build web applications, custom systems, mobile apps, and process automations that solve real problems for companies and entrepreneurs.

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3,028
Swaptop downloads (Rust)
PUCPR
Software Engineering
Full-Stack
Web · Mobile · Automation · AI

About me

From Curitiba, building software that solves real problems

I lead Wired Layer Co., a software studio based in Curitiba. I build solutions aimed at solving real problems for companies and entrepreneurs, with hands-on experience in RESTful APIs, web applications with Next.js and React, mobile apps with Flutter, Python automation, and data integration.

My track record includes software projects in manufacturing and technology companies, covering everything from process automation to complete web platforms and AI-based solutions.

Good software is measured by the outcome, not by the technology behind it.

Services

What I can build for you

From the first idea to a working delivery. Every service is tailor-made, focused on solving your business problem, not on piling on features.

web

Web & custom systems

Web platforms, admin panels, dashboards, and landing pages with Next.js, React, TypeScript, and PostgreSQL, from prototype to production.

  • Institutional and sales websites
  • Control and management panels
  • Payment and API integrations
  • Cache, queues, and messaging (Redis, RabbitMQ)
mobile

Mobile apps

Cross-platform apps (Android and iOS) with Expo (React Native) or Flutter, integrated with Firebase, APIs, and push notifications.

  • Apps for field teams
  • Delivery and service management
  • Real-time notifications
automation

Automation & API integration

Python routines that automate repetitive tasks, consolidate data from spreadsheets and reports, and integrate platforms with each other.

  • Automatically generated reports
  • Integration between systems and spreadsheets
  • Eliminating manual work
infrastructure

Infrastructure, deployment & servers

Linux servers, Docker containers, Nginx, SSL certificates, and Cloudflare. From static site deploys to full applications, with CI/CD and monitoring.

  • Deploy and hosting for sites and apps
  • Linux servers (Ubuntu/Arch) and Docker
  • Domains, SSL, CI/CD, and backups
artificial intelligence

AI solutions

Data analysis agents, chatbots, and RAG architectures for intelligent querying of your company's internal documents.

  • Customer support chatbots
  • Search across documents (PDF, CSV, Excel)
  • Data analysis with generative AI

Selected projects

Work that has already shipped

cultural platformNext.js · PostgreSQL · Redis

AfroRetratos cultural platform with anonymous feed

Event agenda, institutional pages, and an anonymous community feed with moderation, built for a collective of advertising and cinema students at PUCPR.

Next.js 16 · React 19 · TypeScript · PostgreSQL · Drizzle · Redis · Tailwind CSS · Docker

Live site GitHub

mobileFlutter · Dart · Firebase

Freight and delivery management app

Cross-platform app for a transport company with shipment tracking, delivery management, and real-time notifications.

Flutter · Dart · Firebase Auth · Firestore

GitHub

artificial intelligencePython · LLM · RAG

Intelligent data analysis and RAG platform

Semantic analysis and contextual search across documents (PDFs, CSVs, Excel) with a reactive agent and interactive dashboards.

Python · Streamlit · LlamaIndex · Google Gemini · Docker

GitHub

webNext.js · Flask · PostgreSQL

Ticket management system and monitoring dashboard

Web application for tracking and managing technical requests in a factory environment, with metrics and an interactive map.

Next.js · TypeScript · Flask · PostgreSQL · Docker

toolingRust · Tokio

Swaptop, a command-line tool

Utility for monitoring the Linux swap area, with 3,028 downloads since launch.

Rust · Tokio async I/O

GitHub crates.io

Technologies & tools

The toolkit I use every day

Languages

  • Python
  • TypeScript
  • JavaScript
  • Rust
  • Dart
  • C#

Frontend & Web

  • Next.js
  • React
  • Angular
  • Tailwind CSS
  • HTML/CSS

Backend

  • FastAPI
  • Flask
  • Django
  • Node.js
  • ASP.NET Core

Mobile

  • Expo / React Native
  • Flutter

Databases

  • PostgreSQL
  • SQLite
  • MongoDB
  • MySQL
  • Firebase

DevOps & Cloud

  • Docker
  • Git
  • GitHub Actions
  • Nginx
  • Vercel
  • Cloudflare
  • Linux (Arch/Ubuntu)

Messaging & cache

  • Redis
  • RabbitMQ

Client reviews

What clients say about working with me

Client review · AfroRetratos

Luís built the AfroRetratos platform exactly as we envisioned: fast, easy to use, and with a level of finish I rarely see. Communication was clear from day one, every detail was handled with care, and the result went beyond what we expected. I recommend him without hesitation.
Isabella Monteiro Content creator · AfroRetratos @isacreates.comm

Scheduling & contact

Let's talk about your project?

Free discovery call

Book a conversation, no strings attached

Need a custom system, an app, or an automation for your company? Pick the best time and let's talk about your project, free of charge and with no obligation.

Choose a time

Online worldwide · In person in Curitiba, Brazil

Other ways to reach me