Understand the problem
Discovery, scoping, and product alignment. Before writing code, I understand what needs to be solved and why.
Software Engineer
From idea to deploy.
Software that actually works.
10+ years architecting, building, and shipping software to production. From understanding the problem to deploying on AWS — with React, Next.js, Node.js, and TypeScript.
ReactNext.jsNode.jsTypeScriptAWSDockerCI/CD
About
I started coding with PHP and WordPress in 2013. In 10+ years, I've built over 20 products from scratch — from idea to deploy. Today I work as Tech Lead at Swift/JBS, where I own the full cycle: understand the problem, design the architecture, develop, and ship.
From problem to product
Every stage of the development cycle is a specialty — not an improvisation.
Design the architecture
Data modeling, API design, and technology choices. Decisions that determine whether the product will scale or become rework.
Build with quality
React, Next.js, Node.js, and TypeScript in production. Clean, tested code built to last.
Ship it and keep it running
CI/CD, Docker, AWS, and monitoring. Deployment isn't the end — it's where the product actually starts working.
From idea to production: products I built
Own products, projects, and sites I designed, developed, and shipped to production.
SaaS
GoRhema
Identified the need for pastors to have sermon prep tools. Designed the architecture with RAG and fine-tuning, built frontend and backend, and shipped it with CI/CD on Vercel.
Next.jsTailwind CSSPrismaGPT-5RAGFine-tuning
View project 
SaaS
Postia
From idea to deploy: built an AI-powered Instagram carousel generator. Designed the GPT and Meta API integration, developed the entire application, and shipped to production.
Next.jsTailwind CSSPrismaGPTRAGMeta API
View project 
Landing Page
GM Climatizacao
Institutional website for an HVAC company in Rio de Janeiro. Landing page with SVG animations, WhatsApp integration and responsive design focused on conversion.
AstroTailwind CSSSVG AnimationsJavaScript
View project 
Side Project
OrientMe
Website for OrientMe, a software house specializing in custom digital solutions. Dark mode design with animations and performance focus.
Next.jsTailwind CSSReactTypeScript
View project 04 / Experience
Building end to end.
At every company, my role has been the same: take a problem, design the solution, and deliver working software to production.
Swift/JBS
Multiple companies
Early career
05 / Articles
View all Articles
Engineering, architecture, product development, deployment, and technical leadership.
Engineering
Engineering Quality as a Contract, Not an Aspiration
Engineering Quality as a Contract, Not an Aspiration — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.
EngineeringReducing Deploy Lead Time Without Breaking Quality
Reducing Deploy Lead Time Without Breaking Quality — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.
EngineeringMeasuring Engineering Impact, For Real
Measuring Engineering Impact, For Real — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.
Let's build
Have an idea? I'll take it to deploy.
Need someone who understands the problem, designs the solution, and delivers working software? Let's talk.