Marcelo Fortes Lazzari

Marcelo Fortes Lazzari

I deliver Products

Impact-first mindset: from architecture to measurable outcomes, with security and performance.
Talk to me
[SUA_FOTO_PROFISSIONAL]

About Senior Flutter + AI

Flutter Developer focused on building scalable systems and the strategic automation of complex processes.With over 5+ years of experience, I navigate between high-performance Mobile development and Fullstack architecture, delivering solutions that support 100,000+ active users with security and fluidity. At Serasa Experian, I provide technical leadership for global projects across 5 countries, ensuring that critical payroll loan applications meet the highest compliance standards (OWASP/MASA) and user experience. My approach combines technical rigor in Clean Architecture with the modernization of legacy systems for Mobile, Web, and Desktop environments. As Co-founder of RMS AI Agents, I specialized in Generative AI and RAG (Retrieval-Augmented Generation), developing ecosystems that connect LLMs (OpenAI/Gemini) to real-world business workflows through n8n and vector databases.

Impact-first mindset: from architecture to measurable outcomes, with security and performance.

Stack & Technologies

Tools I use to deliver advanced solutions with quality and consistency.

Frontend

FlutterDartReactTypeScriptNext.js

Backend

APIs

Design

Design systems

AI & Automation

RAGLLMs (Agents)n8n

Infrastructure & Data

DockerPostgreSQL

Observability & Security

ObservabilitySecurity (OWASP)

Professional Experience

A timeline with outcomes and details. Expand to see the impact.

Key outcomes
  • Technical leadership in the development of payroll loan (consigned credit) applications operating across 5 countries, with 100,000+ active users
  • Implementation of mission-critical authentication flows, including face recognition, OAuth, and OTP
  • Active involvement in OWASP-based security processes and preparation for Google MASA certification
  • Modernization of legacy systems to Flutter, with cross-platform support (Mobile, Web, Desktop)
  • Strong focus on performance, scalability, and solid architectural best practices

Key outcomes
  • Built 300+ automated workflows using n8n
  • Created APIs and intelligent flows integrated with OpenAI and Gemini
  • Developed automated customer-support agents integrated with CRMs such as UChat and Chatwoot
  • Built high-performance interfaces using React + Vite
  • Implemented MCP (Model Context Protocol) for integration with Cursor AI
  • Managed infrastructure with Supabase, MongoDB (vector database), Redis, and RabbitMQ
  • Structured CI/CD pipelines with GitHub Actions and Docker-based deployments (Vercel and Hostinger)

Key outcomes
  • Created real-time GPS ride management systems
  • Implemented navigation with native Android overlays
  • Developed a digital wallet integrated with payment gateways (Mercado Pago)
  • Complete chat system and ride history
  • Integrated Firebase (auth, realtime) and Google Maps SDK
  • Used proprietary design systems for consistent UI
Print do app Mobi

Key outcomes
  • End-to-end mobile app development in Flutter and web frontend in Next.js
  • API-based backend architecture with n8n, integrating SMTP, Supabase, and Firebase
  • Built a full social platform (posts, comments, profiles, and media)
  • Implemented quizzes, recurring subscriptions (SaaS), and video playback
  • Advanced deep-linking strategies
  • Managed media storage with Backblaze
  • Published and managed apps on stores
Print do app Master Detox
Complete version with additional details in the CV.

Certifications

Relevant certifications and training that strengthen work in AI, RAG, and software engineering.
Artificial Intelligence & RAG
Pluralsight
Not specified
English Training
New Zealand
Not specified
Bachelor's in Systems Analysis and Development
Academic background
Not specified

Contact

Let’s talk. I reply quickly and I like to understand the problem behind the idea.

WhatsAppLinkedIn
No spam. Share a short context and your goals.
Direct channels
Email
[YOUR_EMAIL]
WhatsApp
Open WhatsApp
GitHub
GitHub