About

Thanks for stopping by. Read below to learn more about myself and my background.

Mario explaining microservices distribution at work for colleagues

Background

I’m a seasoned Technical Leader and Software Architect with over 20 years of experience building, scaling, and operating high-impact digital platforms.
My background spans Web & Mobile Architecture, backend systems, cloud infrastructure, and large-scale distributed environments.

I specialize in end-to-end platform ownership—from technical strategy and architecture to delivery, observability, cost optimization, and long-term evolution. I’ve led initiatives that support millions of users, high data volume, and mission-critical workflows.




📱 Mobile & App Store Expertise
I have deep hands-on experience with iOS and Android native applications, including:

  • App Store & Google Play subscriptions, renewals, and one-time purchases
  • Monetization strategies, product experiments, and lifecycle management
  • Store policies, approvals, compliance, and operational workflows
    This experience often leads to inbound conversations around mobile monetization and store operations.
    This foundation allows me to design faster, more secure and resilient platforms, even in highly abstracted cloud environments.



🖥️ Linux / UNIX Sysadmin & Information Security Background
I bring strong, hands-on experience in Linux/UNIX system administration and information security, with a deep understanding of what runs “under the hood”.

  • This includes system tuning and hardening practices that are often overlooked today, but still make a significant difference at scale:
  • Kernel and OS tuning (sysctl, file descriptors, networking, memory)
  • Performance optimization and capacity planning
  • Security hardening, least-privilege principles, and attack surface reduction
  • Troubleshooting complex production issues across OS, network, and application layers



📌 Core Technical Strengths

  • System & Cloud Architecture (AWS & GCP)
  • Event-Driven & Distributed Systems
  • APIs, Microservices, Docker & Terraform
  • CI/CD, Automated Testing & Observability
  • Data Modeling, Security, and Platform Reliability



👥 People Development & Technical Leadership
Over the years, I’ve actively focused on growing engineers beyond code:

  • Mentoring mid-level developers
  • Encouraging and coaching technical presentations, internal talks, and public speaking
  • Promoting clear documentation, architectural writing, and knowledge sharing
  • Supporting engineers in developing confidence, communication, and leadership skills



I thrive in environments where technology, product, and people intersect. I believe great software is built by teams that communicate well, understand the business, and care deeply about the end-user experience.

Professional Journey

My resume is published on LinkedIn. This space is reserved to express my gratitude to the special people who have contributed significantly to my career.

Catho

2015 - Present

Tech Lead & Specialist

Leading the modernization of legacy systems, migrating a monolithic web platform to microservices and implementing high-performance mobile architecture. Focused on scalability, telemetry, and mentoring teams to deliver value in a high-traffic environment.

👥

Special thanks to: Under construction :)

Folha de S.Paulo

2012 - 2015

Mobile Specialist / Senior Dev

Responsible for the main news apps of Brazil's largest newspaper. Worked on architecture, performance optimization, web crawlers, DataFolha reports, and automation tools that helped journalists avoid repetitive tasks.

👥

Special thanks to: Alexandre Santana, Marcelo Cruz, Ciro Souza, Fernando Nemec, Aleksandro Neri Botelho, Webysther Sperandio, Daniel Medeiros, Leonardo Faria Ferreira

Portari Assessoria

2004 - 2012

Systems Analyst / Developer

I am deeply grateful for the opportunity I had here. The confidence placed in me by Partner Dr. Sérgio Gonzales and my friends Leandro Baier Stefano and André Stefano provided an environment of immense learning. It was the largest lab I ever had, serving thousands of users across corporate services. The opportunity to replace dozens of Microsoft products with Open Source technologies was invaluable to my career.

Impacta Tecnologia

2001 - 2004

Webmaster & Instructor

I joined to take a course and was hired. An academic environment with free access to bookstores and endless study. I was responsible for e-commerce courses, working as a Webmaster, instructor, and speaker. I obtained several certifications and decided to dedicate the rest of my career to Open Source technologies.

👥

Special thanks to: Caio Quiozini, Alexandre Fiori, Theo Cabrerizo Diem, Gonzalo J. Miranda M., Celio Antunes, Eduardo Engelmann, Marcio Vitale, Francisco Lopez, Nilson Ramalho, Fernando Casado, Alan Henrique Pardo de Carvalho

CMA

1999 - 2001

Trainee to Webmaster

A multinational environment. Stela invited me when ITC was closing. I started as an intern, and through hard work and study, I earned a shot at a Designer position. Márcio offered me a challenge and gave me a Java book. I passed the test, was promoted to Web Designer, and eventually Webmaster.

👥

Special thanks to: Stela Vaz, Marcio Rotondano, Cristiane Fogaça, Emerson Honda

ITC / Itelcon

1997 - 2000

Trainee

The beginning of my journey. A company specializing in postgraduate courses. Surrounded by thousands of books and handouts, I transitioned from an extreme sports athlete to a technology enthusiast. I took advantage of every resource to fall in love with this field.

👥

Special thanks to: José Bonifácio Lima Filho (who gave me my first chance - your example was fundamental), Helder da Rocha (instructor & mentor)

Insonic Music

2001 - 2016

Producer & Founder

An entrepreneurial period dedicated to music production, event organization, and mastering audio engineering processes.

👥

Special thanks to: Leonardo Puharic, Enzio Abbruzzini, Daniel Younis, Marcelo Faro, Michel Morais, André (Kako)

Certifications & Licenses

Education

BSC ADSI - Veris IBTA (2010-2013)

Marketing and Publicity - Bernardino de Campos (1998-2000)

College - Liceu Coração de Jesus (1986-1993)

Skills

Mobile Ecosystem (Native & Cross) iOS (Swift), Android (Kotlin), React Native, Store Operations & Monetization
95%
System Architecture & Backend Microservices, API Design, Event-Driven, High Availability
95%
Cloud Infrastructure & DevOps AWS, GCP, Docker, CI/CD Pipelines, Terraform
90%
Linux Sysadmin & Security Kernel Tuning, Hardening, Shell Scripting, Performance Analysis
85%
Technical Leadership Team Mentoring, Architecture Review, Documentation, Hiring
90%
Full Stack Web & SEO Modern JS, Semantic HTML, On-page SEO, Performance Optimization
85%