João Vitor
Martins
I transform data into strategic decisions. With over 10 years of experience, I help companies build robust data infrastructures that generate real business impact.
About
Nice to meet you! You can call me JV.
I've been working with data for over 10 years, and if you take a closer look at my profile, you'll find a wide range of valuable experience across different industries - from healthcare and pharma to automotive and manufacturing.
I'm passionate about solving problems and delivering practical solutions to various challenges. Currently, I work as Lead Data Engineer at Medtronic (USA) and also run my own consulting company, DadosNow, where I help companies transform their data into competitive advantage.
Beyond data infrastructure, I also build AI-powered products. JARVIS is a live example — an AI personal assistant with persistent memory, multi-model support (GPT, Claude, Gemini) and WhatsApp integration, built entirely from scratch. I believe the future of data engineering is inseparable from AI — and I'm already building it.
My expertise spans Data Architecture, Data Engineering, BI & Analytics, and Cloud Solutions. I've worked with companies like Novartis, Hospital Sírio-Libanês, Shoulder, Embraer, Ford, and Fleury.
I hold a Master in Data Science and AI from Sirius Educação (MBA).
Languages
Stack & Skills
Experience
Projects
JARVIS — AI Personal Assistant
A complete AI personal assistant with persistent memory across conversations, multi-model support (GPT, Claude, Gemini), document uploads and WhatsApp integration. Built from scratch and live in production.
usejarvis.app →
Global Data Platform - Snowflake
Led implementation of enterprise data platform at Novartis, integrating global data sources and enabling cross-system analytics.
→ Unified data access for global teams
Data Lake Architecture - AWS
Designed the complete technical solution and led the implementation of a new Data Lake architecture for Solidaridad.
→ End-to-end technical design and implementation
Fleury + Pardini Merger
Led the restructuring and unification of Qlik Sense and Qlik Cloud environments after the merger.
→ Unified analytics environment post-merger
MFA Server Consolidation
Successfully unified 48 Active Directory MFA servers into a single environment at SONDA/Embraer.
→ Delivered in 5 days (planned for 3 months)
Ford LATAM Analytics
Developed unified KPI dashboard for dealerships across Brazil and Argentina.
→ Analytics for global teams BR/AR
Cloud Migration AWS to OCI
Led intercloud server migration from AWS to Oracle Cloud Infrastructure at Hospital Sírio-Libanês.
→ Seamless migration with high availability
Blog & Articles
view all →How I built a complete AI personal assistant from scratch — persistent memory, multi-model support (GPT, Claude, Gemini) and WhatsApp integration. From idea to production.
How I leverage Microsoft Dataflows to centralize queries, reduce costs on Databricks/Snowflake, and enable governance.
How I reduced a Power BI Dataflow load time from 8 hours to just 6 minutes.
A consulting case where data divergence caused trust issues. The solution: a complete Data Lake redesign.
Trusted By
Companies I've worked with
How We Can Work Together
Flexible partnership models to meet your needs
Why work with me?
+10 Years Experience
Extensive experience across healthcare, pharma, automotive, and manufacturing industries.
Enterprise Track Record
Delivered projects for Medtronic, Novartis, Embraer, Ford, Fleury, and Hospital Sírio-Libanês.
End-to-End Solutions
From Data Architecture to BI & Analytics - complete data solutions that drive business value.
Global Experience
Working with global teams, multilingual (PT/EN/ES), and understanding of international business.
Ready to transform your data into results?
Let's talk about how I can help your business grow with data.