Engineering Software That Scales.
PB Engineering builds robust, scalable software platforms and production-ready AI systems — spanning system architecture, high-performance APIs, full-stack delivery, and applied AI engineering — grounded in clean architecture, testability, and disciplined DevOps automation.
what we build
Core Services
Precision-engineered solutions across the full software development lifecycle.
AI Applied Engineering
Designing and shipping production-ready AI systems — from LLM-powered agents and RAG pipelines to voice interfaces and workflow automation — integrated directly into real products.
System Architecture
Designing robust, distributed system architectures with emphasis on fault tolerance, scalability, and clean domain boundaries.
API Engineering
Building type-safe, well-documented APIs with industry-standard authentication, rate-limiting, and versioning strategies.
Code Quality & Reviews
Enforcing rigorous code standards, CI/CD pipelines, and automated testing to ensure maintainable, production-ready software.
Tech Stack
the team
About PB Engineering
Pedro Bertao
Software Engineer - Applied AI Engineer
A full-stack software engineer with a strong focus on building robust, maintainable systems. Passionate about clean architecture, developer experience, and delivering products that genuinely solve problems.
Clean Code First
Every deliverable follows SOLID principles and is built for long-term maintainability.
Full-Stack Ownership
From database schema to UI components — complete end-to-end accountability.
Performance-Driven
Optimising for runtime efficiency, load times, and infrastructure costs from day one.
DevOps Native
CI/CD pipelines, containerisation, and automated testing are standard, not optional.
recent work
Projects
A selection of projects built with care, clean code, and real-world impact.
Flowstream
FlowStream is a self-hosted WhatsApp messaging API with a React dashboard, built on Node.js, Express, and Baileys, enabling authenticated message sending and session-managed WhatsApp automation via a single deployable service.
MeuDimDim
MeuDimDim is a Go-based backend for a WhatsApp personal finance bot, using Groq (LLM + Whisper) to interpret messages, persist transactions in PostgreSQL, cache state in Redis, and respond in real time over WebSocket.
Holy VeÃculos
Full-stack vehicle marketplace platform built for a Brazilian dealership — featuring a public landing page, vendor registration flow, admin dashboard, and NextAuth-powered authentication.
Hope Foundation
Landing page for a nonprofit foundation focused on community impact and social good.
RH
Protótipo gestão de RH
get in touch
Start a Project
Have a system to architect, a product to launch, or a codebase that needs rescuing? Let's scope it out.