Vinicius Fagundes

Data Architect building scalable cloud-native platforms AWS Snowflake Python. Transform fragmented data into AI-ready pipelines; integrate LLMs; optimize cost & performance. https://x.com/dfagundesv

Joined on Jun 19, 2025

Vinicius Fagundes

Dec 11

Reranking and Two-Stage Retrieval: Precision When It Matters Most

#ai #llm #rag

2 min read

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Vinicius Fagundes

Dec 11

Dense vs Sparse Retrieval: Mastering FAISS, BM25, and Hybrid Search

#ai #llm #vectordatabase

15 min read

Vinicius Fagundes

Dec 8

Chunking Strategies: The Art of Slicing Documents for Optimal RAG Performance

#ai #llm #data

10 min read

Vinicius Fagundes

Dec 7

Retrieval-Augmented Generation: Connecting LLMs to Your Data

#ai #datascience #llm #rag

10 min read

Vinicius Fagundes

Dec 5

Prompt Engineering Patterns: From Zero-Shot to Chain-of-Thought Reasoning

#ai #mcp #llm #dataengineering

14 min read

Vinicius Fagundes

Dec 4

Function Calling and Tool Use: Turning LLMs into Action-Taking Agents

#ai #llm #mcp #dataengineering

18 min read

Vinicius Fagundes

Dec 2

Positional Encodings and Context Window Engineering: Why Token Order Matters

#dataengineering #ai #software

12 min read

Vinicius Fagundes

Nov 24

Embeddings and Vector Similarity: How Machines Understand Meaning

#ai #datascience #dataengineering #llm

19 min read

Vinicius Fagundes

Nov 21

Transformers and Attention: How LLMs Actually Process Text

#ai #architecture #llm #deeplearning

18 min read

Vinicius Fagundes

Nov 17

Temperature, Tokens, and Context Windows: The Three Pillars of LLM Control

#ai #dataengineering #data #product

13 min read

Vinicius Fagundes

Nov 6

Building Custom MCP Servers with Python: A Data Engineer's Guide 🛠️

#dataengineering #software #python #ai

5 min read

Vinicius Fagundes

Oct 22

🏗️ Vector Database Architecture: How to Structure Your Data for Production RAG Systems

#architecture #llm #ai #database

3 min read

Vinicius Fagundes

Oct 17

🎓 Building a Smart LMS Assistant: RAG System with Pinecone for Multi-Source Learning Data

#vectordatabase #ai #dataengineering

3 min read

Vinicius Fagundes

Oct 6

When to Choose Scala Over Python for Apache Spark: A Performance-Driven Analysis

#datascience #dataengineering #ai

4 min read

Vinicius Fagundes

Sep 30

🎯 The Challenge: Processing TBs of S3 Data Without Breaking the Bank

#data #dataengineering #ai

5 min read

Vinicius Fagundes

Sep 25

🚀 Building a Sandbox Data Warehouse with Snowflake + GitHub Actions (Part 2)

3 min read

Vinicius Fagundes

Sep 22

🏗️ Building a Sandbox Data Warehouse with Snowflake + GitHub Actions (Part 1)

2 min read

Vinicius Fagundes

Sep 15

Managing Reference and Configuration Data in E-Commerce Data Platforms

3 min read

Vinicius Fagundes

Aug 18

🧊 Snowflake RBAC 101 – Episode 3: Ongoing Access Management

#dataengineering #datawarehouse #snowflake

1 min read

Vinicius Fagundes

Aug 14

Snowflake RBAC 101 – Episode 2: Role Hierarchies & Least Privilege

#dataengineering #dataprivacy #datawarehouse #snowflake

1 min read

Vinicius Fagundes

Aug 11

Snowflake RBAC 101

#snowflake #datascience #dataengineering #ai

1 min read

Vinicius Fagundes

Aug 7

🏗️ Designing Your Modern Data Platform (Cloud-Native Edition)

#dataplatform #datascience #dataengineering

2 min read

Vinicius Fagundes

Aug 4

🔐 Data Governance: From Chaos to Control

#dataengineering #datascience #architecture

2 min read

Vinicius Fagundes

Jul 29

🚦 Optimize Database Access and Efficiency with AWS RDS Proxy

2 min read

Vinicius Fagundes

Jul 28

🧭 Data Mesh vs Data Fabric (Part 2) – Real World Architectures & Code

1 min read

Vinicius Fagundes

Jul 23

🧭 Data Mesh vs Data Fabric (Part 1) – Rethinking How We Scale Data

#datamesh #dataengineering #datacatalog #architecture

2 min read

Vinicius Fagundes

Jul 20

🧱 OLTP vs OLAP: When Transaction Meets Analytics

#datafoundation #dataengineering #ai #sql

2 min read

Vinicius Fagundes

Jul 16

🛒 Real-Life Data Lakehouse Use Case: Revolutionizing Retail Analytics

#datascience #dataengineering #data #ai

2 min read

Vinicius Fagundes

Jul 14

🏗️ Data Lakehouse: Bridging Flexibility and Structure

#dataengineering #datascience #architecture

2 min read

Vinicius Fagundes

Jul 10

🧱 Data Lake, Data Warehouse, and Data Mart: What's the Difference?

2 min read

Vinicius Fagundes

Jul 8

🤖 Part 3: Building a Price Recommendation Engine with Pandas and Scikit-Learn

2 min read

Vinicius Fagundes

Jul 7

❄️ Part 2: ETL to Snowflake with AWS Glue — Enabling Price Index Modeling

2 min read

Vinicius Fagundes

Jul 3

🧠 Building a Serverless Price Indexer with AWS — From Web Crawling to Insights

2 min read

Vinicius Fagundes

Jun 30

Building Multi-Tenant Analytics with Snowflake RBAC and Sigma Computing: Part 3

#analytics #snowflake #dataengineering #datascience

3 min read

Vinicius Fagundes

Jun 25

Building Multi-Tenant Analytics with Snowflake RBAC and Sigma Computing: Part 2

#analytics #snowflake #dataengineering #datascience

3 min read

Vinicius Fagundes

Jun 24

Building Multi-Tenant Analytics with Snowflake RBAC and Sigma Computing: Part 1 - Foundation and Data Modeling

#analytics #dataengineering #datascience #snowflake

3 min read

Vinicius Fagundes

Jun 20

Trust Over Throttle: Leveraging o3-Pro for Accurate, Impactful AI

#python #ai #llm #dataengineering

3 min read

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