I turn idea into working [websites].
"Building digital experiences that scale."
"Ideas shipped fast."
"Design that converts."
Breno Costa
Full-stack Developer & Freelancer
I'm a Brazilian full-stack developer who builds web platforms, mobile apps and complete systems. I work with startups, agencies and businesses that need things done right — from architecture to deployment.
Journey
Career Start
First steps in web development — HTML, CSS, JS fundamentals
Junior Developer
Small projects for local companies — first real-world systems
Freelancer
Full-stack freelancing — platforms, systems and mobile apps
Co-founder @ UX Brasil
Co-founded UX Brasil, building products for universities and NGOs
What I build
Websites & Landing Pages
Convert visitors, every time.
Web Platforms & Systems
From idea to production-ready system.
APIs & Integrations
Connect everything, break nothing.
Selected work
Web platform for complete event management — creation, scheduling and participant control.
University dashboard with secure access control and real-time data visualization for academic environments.
Platform for standardization and submission of academic banners — partially in production. Led architecture, data modeling and production maintenance.
Complete management system for pet shops — appointments, medical records, inventory and client management.
Complete university cafeteria ecosystem — web dashboard for offer management, POS system and order tracking, integrated with a native mobile app for student orders.
Complete CRM for NGO management — volunteer screening, task manager and internal course platform.
Platform to help Brazilian communities protect themselves against soot particles from Amazon and Pantanal wildfires — real-time air quality alerts, prevention guides and risk mapping.
Technologies I work with
Let's build something.
Whether you need a website, a system, or just want to talk — I'm one email away.