Marco Antonio Gonzalez Junior

Software Engineer, Solutions Architect, Artificial Intelligence Specialist

16+
Years building software systems
10+
Years in AI & ML
60+
Pro Certifications
São Paulo
Brazil

WHO

I build things that scale. Over 16 years I've shipped enterprise platforms, ML-powered products, and — more recently — production generative AI systems: RAG pipelines, fine-tuned LLMs, multi-agent orchestration, and the infrastructure to run all of it reliably.

This blog covers what I find worth sharing — programming, software engineering, infrastructure, and AI. Occasionally, endurance sports. I write everything myself and use AI for proofreading only — see my AI policy.

NOW

Sabesp Sep 2025 — Present

Lead AI Specialist

  • Leading AI teams on generative AI enablement across water & sanitation infrastructure — one of Brazil's largest utilities.
  • Implementing MLOps/LLMOps CI/CD pipelines on Databricks and Azure, serving foundation and fine-tuned models for customer support and code review agents.
  • Architecting a centralized AI Gateway: model access with fallbacks, spend tracking, rate limiting, security, and prompt caching.

EXPERIENCE

  1. 2024 – 2025 Wipro
    Senior Solutions Architect — AI Legacy modernization using Neo4j knowledge graphs, LangGraph, and AWS Bedrock — 85%+ reduction in migration timelines for COBOL and legacy systems.
  2. 2022 – 2024 IBM
    Senior Solutions Architect — AI Fine-tuned LLMs for financial services. 75% automated resolution rate. Multi-cloud MLOps serving 10M+ monthly interactions.
  3. 2019 – 2022 banQi
    Senior Solutions Architect Microservices platform supporting 10x traffic growth. ML fraud detection cutting fraudulent transactions by 40%.
  4. 2015 – 2019 Petlove
    Tech Lead Brazil's largest pet e-commerce. Membership platform at $2M+/mo. Grew team and data infrastructure through 1500% business expansion.
  5. 2012 – 2015 Jüssi
    Solutions Architect Facebook and Google Marketing Partners. Automated Ads campaigns for the biggest Brazilian brands, managing $500M+/mo in spend.
  6. 2008 – 2012 Editora Abril
    Senior Software Engineer Biggest media group in Latin America. Digital transformation of the content management system for the biggest media publisher in Brazil — 500K+ monthly users.

SKILLS

Architecture

Domain-Driven Design, Clean Architecture, Event-Driven, Microservices, Enterprise Integration Patterns

Cloud & DevOps

AWS | Azure | GCP Solutions Architect, DevOps Engineer, and Artificial Intelligence systems.

Kubernetes, Containerization, Terraform, CI/CD, Infrastructure as Code, Serverless

AI & Machine Learning

Generative AI, LLMs, Fine-tuning, RAG Systems, Knowledge Graphs, Multi-Agent Systems, MLOps, LLMOps

Technical Leadership

Hands-on. 37+ years programming.
Passionate about open source software, technology strategy, innovation, digital transformation and team building.

CERTIFICATIONS

AWS

  • Solutions Architect Professional
  • Data Engineer Associate
  • ML Engineer
  • ML Specialty
  • AI Practitioner
  • Solutions Architect Associate
  • Developer

Other

  • Stanford ML & Deep Learning
  • IBM AI Engineering Professional
  • Data Science

CONTACT

m@rco.sh