Freelancer · Apps & AI · São Paulo
I turn ideas into amazing apps for Android, iOS, Web and Desktop — with Flutter, a single codebase and Artificial Intelligence where it makes a difference.
Focus areas: Cross-platform, Artificial Intelligence, AI Agents, Firebase, REST APIs and Agile.
Companies that trust my work
01 · About
Nazildo Souza is self-taught, committed, reliable and passionate about technology.
Cross-platform Software Engineer with experience building applications for web, mobile and desktop using modern technologies such as Flutter, Node.js and more.
I also bring Artificial Intelligence into the products I build — from assistants and natural-language search to agents that automate tasks — and use AI in my own workflow to ship faster, always with human review and a focus on quality.
Skilled at collaborating in agile teams, focused on delivering innovative and scalable solutions. Strong knowledge of API integration and performance optimization, always striving to improve the user experience.
Committed to good coding practices and constantly keeping up with industry trends, always seeking the knowledge needed to solve a wide range of IT problems — delivering the best, with quality and efficiency.
02 · Services
Native apps for every platform from a single codebase — faster delivery, lower cost and the same premium experience on any screen. And, when it makes sense, with built-in Artificial Intelligence.
Android development with Flutter is a modern way to build native apps from a single Dart codebase. With rich, responsive interfaces, Flutter enables engaging user experiences. Ideal for companies looking for speed and innovation in their products.
iOS development with Flutter is an agile, efficient way to build native apps. With a single Dart codebase, your team ships high-quality products with attractive interfaces. Ideal for startups and companies that need to innovate fast.
Web development with Flutter makes it possible to build robust, responsive applications from a single codebase. Ideal for companies that value speed, the framework provides tools for modern, interactive interfaces, and optimized performance ensures a smooth experience.
Desktop development with Flutter delivers native apps for Windows, macOS and Linux from a single Dart codebase. With attractive, interactive interfaces, it offers excellent performance and user experience — an ideal choice for innovative software companies.
Launch or grow your idea or business for everyone, everywhere.
03 · Artificial Intelligence
The way people use software is changing: they want to talk to apps, find what they need in plain language and delegate tasks. I bring AI into your product in a practical, secure way, with costs under control.
Support inside the app, on the website or on WhatsApp, with answers grounded in your business information.
Users describe what they want in their own words and the app understands — like Levii’s smart search.
AI connected to your systems and APIs to look things up, schedule and resolve — not just reply.
Reading photos, documents and text through the camera, like Neo Seguradora’s self-inspection.
04 · Portfolio
A selection of apps and platforms I have built — from e-commerce to real-time tracking.
Social Discovery
Social discovery app to find people, communities and real-world experiences through shared interests — always showing why each suggestion appears.
Family Locator
Family locator with a real-time map, arrival and departure alerts, SOS button, timeline and weekly summary — so you know everyone got home safe.
100% digital car and pet insurance
100% digital car and pet insurance app: quotes in minutes, customizable coverage, self-inspection by phone, claims and driving telemetry.
CRM, Chatbot & AI
Omnichannel CRM with a support dashboard, conversations by channel, lead funnel, chatbots and tasks — on mobile, web and desktop.
Payments for merchants
Payments app for merchants with transactions, receivables, anticipation, payment links and an installment sales simulator.
Vehicle tracking
Vehicle tracking and security: your vehicles on the map in real time, geofencing and configurable speed alerts.
Cross-platform e-commerce
Responsive e-commerce with product showcase, cart and checkout, built to work just as well on desktop, tablet and phone.
Orders and sales
Sales and order management app with cart, checkout and detailed tracking of every order.
Movie and TV catalog
Movie and TV catalog powered by The Movie DB API: upcoming releases, details, cast, crew and trailers.
05 · Contact
Feel free to reach out anytime. Send me a message and let’s talk about your project — I work with clients in Brazil and abroad.
