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AfonsoFeliciano
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Afonso de Paula Feliciano AfonsoFeliciano

Engenheiro de Dados Senior e Especialista em Business Intelligence

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AfonsoFeliciano/README.md

Data Engineer & BI Specialist | Cloud & Big Data Architect


Escolha seu Idioma | Choose Your Language


Portugues

Quem Sou

Missao: Arquitetar solucoes de dados escalaveis e de alto desempenho que transformem dados em inteligencia estrategica.

Profissional de TI com 10+ anos de experiencia, sendo 7+ anos dedicados a Engenharia de Dados em ambientes Cloud e On-Premises com foco em Microsoft Azure. Especialista em arquitetura de dados moderna (Data Lakehouse, DataMesh, Medallion Architecture), processamento distribuido com Databricks e Spark (PySpark, SQL) e automacao de pipelines ETL/ELT escalaveis, sustentando solucoes de alto desempenho com governanca de dados corporativa.

Areas de Expertise

Arquitetura

Data Lakehouse
Data Mesh
Medallion Architecture

Cloud & Big Data

Azure
Databricks
Snowflake

Processamento

Spark
PySpark
Apache Airflow

Governanca

Unity Catalog
Data Mesh
Data Quality

Pipelines

ETL/ELT
Streaming
CDC/CDF

DevOps

Terraform
Azure DevOps
CI/CD


Estatisticas GitHub

Linguagens Principais:

Veja meu portfolio -


Experiencia Profissional

10+ anos em TI | 7+ anos em Data Engineering | 6+ empresas | Multiplas industrias


NTT DATA Europe & Latam | Engenheiro de Dados (Dezembro 2022 - Presente | 3a 3m)

Arquitetura & Migracao:

  • Executei migracao estrategica de infraestrutura entre Azure Tenants, consolidando ecossistemas complexos (ADF, dbt, Snowflake, Airflow) para Azure Databricks
  • Implementei e sustentei Unity Catalog para garantir governanca, disponibilidade e seguranca em arquitetura Data Mesh

Performance & Otimizacao de Custo:

  • Viabilizei reducao de 95% no tempo de processamento atraves de tecnicas avancadas de otimizacao (Shuffle, Spill, Caching)
  • Reducao de 70% nos custos de computacao + 45% adicional via Cluster Sizing inteligente

Engenharia de Pipelines (ETL/ELT/ELTL):

  • Desenvolvi fluxos de ingestao de larga escala para Arquitetura Medallion, manipulando dados relacionais e nao-relacionais (MongoDB, Neo4J, Postgres)
  • Implementei padroes com Spark (PySpark/SQL) e frameworks como Auto Loader

Streaming & Mensageria:

  • Construcao de processos de ingestao em tempo real com Kafka, Event Hub, RabbitMQ
  • Aplicacao de padroes CDC/CDF para integridade de dados em cenarios complexos

Infraestrutura como Codigo & DevOps:

  • Scripts Terraform para automacao de infraestrutura
  • Pipelines CI/CD em Azure DevOps para deploy automatizado de schemas, volumes e configuracoes

Data Quality & Governanca:

  • KPIs de qualidade (Freshness, Integrity) com dashboards de governanca (lvdash)
  • Automacao de monitoramento de custos e falhas via Power Automate e Webhooks (Teams/Slack)

Mentoria & Documentacao:

  • Nivelamento tecnico de profissionais atraves de avaliacao em cases de entrevista
  • Elaboracao de documentacao tecnica no Confluence
  • Apoio em campanhas internas de certificacao Azure e Databricks

Stack: Databricks, Python, PySpark/Spark SQL, Azure Data Factory, Power BI, Azure DevOps, Kafka/Event Hub/RabbitMQ, CosmosDB, MongoDB, APIs REST


Radix Engenharia e Software | Engenheiro de Dados (Novembro 2021 - Dezembro 2022 | 1a 2m)

  • Colaboracao na especificacao de requisitos e criacao de ambientes de dados focados em arquitetura big data
  • Execucao de pipelines ETL/ELT em Azure: Data Factory, Databricks, Synapse Analytics, Azure DevOps
  • Codificacao de projetos on-premise para cloud, armazenamento em camadas Raw, Trusted, Refined, Serving
  • Processamento com Spark (PySpark/SparkSQL) aplicando modelagem dimensional
  • Sustentacao e melhorias em Self-Service BI com Analysis Services, Tabular Studio, ALM Toolkit, Dax Studio, Bravo for Power BI

Stack: Azure Data Factory, Azure Data Lake Storage Gen2, Azure Databricks, Azure Synapse, Azure SQL Database, Azure DevOps, Azure Analysis Services, Power BI, Dax Studio, Tabular Studio, ALM Toolkit


Sinqia | Analista de BI (Agosto 2021 - Novembro 2021 | 4m)

  • Execucao de processos ETL (Pentaho, SSIS, Power Query) de diversas fontes (APIs, bancos relacionais) com modelagem dimensional
  • Tuning em bancos de dados SQL On-Premises e Azure SQL
  • Documentacao e melhorias em processos de governanca de dados
  • Camada semantica e ambiente Self-Service BI com Power BI e Tableau
  • Implantacao de melhorias em sistemas Jira, Protheus, Salesforce com foco em KPIs
  • Criacao de dashboards para acompanhamento de projetos (saving, SLAs, satisfacao)

Stack: Power BI, Tableau, SQL Server, SSIS, Pentaho, Power Query, Python


Axxin Data Intelligence | Analista de Dados (Marco 2020 - Julho 2021 | 1a 5m)

  • Criacao de relatorios com SQL, MySQL, JQL
  • Integracao de APIs e cruzamento de informacoes com sistemas internos e Receita Federal (importacao/exportacao)
  • Refatoramento de dashboards Qlik View - Power BI
  • Implementacao de ETL com Pentaho Data Integration e Power Query
  • Mapeamento de requisitos para Data Marts e Data Warehouse
  • Levantamento de requisitos com metodologias: Discovery, Design Thinking, Lean Inception, Scrum
  • Melhorias de processo e automacao de obtencao de dados orientada ao usuario final
  • Colaboracao com times de Ciencia de Dados e Aquisicao de Dados

Stack: SQL, MySQL, Oracle, Power BI, Tableau, Qlik View, Pentaho, Power Query, Python


Grupo Educacional UNIS | Assistente de TI (Setembro 2018 - Marco 2020 | 1a 7m)

  • Manipulacao de dados com SGBD SQL Server
  • Mapeamento de processos educacionais, financeiros, contabeis e workflow
  • Geracao de analises e relatorios para niveis operacional, gerencial e executivo
  • Integracao de layouts bancarios e empresas de cobranca
  • Criacao de RM Reports e customizacao do ERP RM TOTVS
  • Tuning de bancos de dados (Stored Procedures, Triggers, Functions)
  • Parametrizacao e homologacao de releases do ERP RM TOTVS
  • Projetos e rotinas de BI com Good Data e Power BI

Stack: SQL Server, RM TOTVS, Good Data, Power BI, T-SQL


FIT Networks Tecnologia em Informatica e Telecomunicacoes | Assistente de Telecomunicacoes (Janeiro 2017 - Setembro 2018 | 1a 9m)

  • Suporte tecnico a infraestrutura de provedores de internet
  • Preparacao de ambientes para treinamentos (baixa, media e alta complexidade)
  • Analise de projetos de redes: FTTH, FTTX, FTTC
  • Criacao de indicadores internos conforme ISO 9001
  • Configuracoes de equipamentos: OLTs, ONUs, Switches, Roteadores Mikrotik, Servidores
  • Apoio tecnico ao time comercial (pre-venda)
  • Elaboracao e sustentacao de manuais tecnicos com LaTeX
  • Sustentacao do sistema Protheus

Stack: Mikrotik, OLT/ONU, Switches, Protheus, LaTeX


Grupo Educacional UNIS | Auxiliar de Processos Academicos (Maio 2016 - Janeiro 2017 | 9m)

  • Execucao de processos academicos e financeiros
  • Analise de indicadores da central de servicos compartilhados
  • Interacao com setores: atendimento, contabil, registro de diplomas
  • Pesquisas por melhorias continuas dos processos educacionais

Grupo Educacional UNIS | Assistente Administrativo de TI (Abril 2015 - Maio 2016 | 1a 2m)

  • Suporte interno aos usuarios
  • Manutencao de hardwares, ramais, configuracoes VoIP e switches gerenciaveis
  • Integracao de novos colaboradores com politicas de seguranca
  • Projetos wireless: instalacao de access points Ubiquiti e Aerohive
  • Projetos de cabeamento estruturado em todas as unidades

Grupo Educacional UNIS | Estagiario de TI (Agosto 2014 - Marco 2015 | 8m)

  • Suporte interno ao usuario
  • Gerenciamento de acessos: Active Directory, Servidores de Diretorio
  • Manutencao de servidores e rotinas de backup

Cooper Standard | Jovem Aprendiz (Janeiro 2013 - Dezembro 2013 | 1a)


Conhecimentos Tecnicos

Cloud & Data Engineering

Banco de Dados

Orquestracao & Pipelines

Visualizacao & Analytics

Linguagens & Frameworks

DevOps & Infrastructure

Ferramentas & Plataformas

Arquitetura & Padroes

  • Data Lakehouse (Medallion Architecture)
  • Data Mesh patterns
  • ETL/ELT/ELTL workflows
  • CDC/CDF (Change Data Capture/Feed)
  • Unity Catalog & Governance
  • Self-Service BI
  • Data Quality (Freshness, Integrity)
  • Performance Optimization (Shuffle, Spill, Caching)

Certificacoes & Conquistas

Databricks Certified

Microsoft Certified

Other Certifications



Formacao Academica

Nivel Curso Instituicao Periodo Status
MBA Engenharia de Dados e Inteligencia Artificial Xperiun 2026 - 2027 Em Curso
MBA Business Intelligence & Analytics Xperiun 2025 - 2026 Concluido
Pos-Grad Modelagem em C&T UNIFAL-MG & CEFET-MG 2018 - 2020 Concluido
Graduacao Analise e Dev de Sistemas UNIS 2016 - 2018 Honra ao Merito
Tecnico Redes de Computadores UNIS 2014 - 2015 Concluido
Prof. Assistente Administrativo UNIS 2015 - 2016 Concluido

Sistemas & Plataformas

ERP & CRM:

  • ERP Protheus | RM Totvs | Salesforce | ABADI/JDE

Atlassian Suite:

  • Jira Service Desk | Jira Software | Jira Cloud

Outros Sistemas:

  • Kenoby | Qulture Rocks | Siscomex | Mercante

Soft Skills

  • Capacidade de atuacao em diversas frentes (Multitask)
  • Pensamento critico
  • Autonomia e criatividade
  • Prazer em compartilhar conhecimento

Contatos & Redes Sociais


English

About Me

IT professional with 10+ years of experience, with 7+ years dedicated to Data Engineering in Cloud and On-Premises environments with focus on Microsoft Azure. Specialist in modern data architecture (Data Lakehouse, DataMesh, Medallion Architecture), distributed processing with Databricks and Spark (PySpark, SQL), and automation of scalable ETL/ELT pipelines, supporting high-performance solutions with corporate data governance.

Technical expertise:

  • Modern data architecture (Data Lakehouse, Data Mesh, Medallion)
  • Cloud data engineering with Azure, Databricks, Snowflake
  • Distributed processing: Spark, PySpark, Apache Airflow
  • Advanced orchestration: Azure Data Factory, Databricks Workflows, Airflow
  • Relational and dimensional modeling for Data Warehouse
  • Performance and cost optimization in Big Data environments
  • Data governance: Unity Catalog, Data Mesh patterns
  • DevOps & IaC: Terraform, Azure DevOps, CI/CD, GitHub

Goal

Architect and implement scalable data solutions with high performance and robust governance, transforming raw data into strategic business intelligence.

GitHub Statistics

Main Languages:

  • Python | T-SQL | PySpark | SQL | DAX | Power Query

Check my portfolio: github.com/AfonsoFeliciano

Professional Experience

NTT DATA Europe & Latam | Data Engineer (December 2022 - Present | 3y 3m)

Architecture & Migration:

  • Executed strategic infrastructure migration between Azure Tenants, consolidating complex ecosystems (ADF, dbt, Snowflake, Airflow) to Azure Databricks
  • Implemented and sustained Unity Catalog ensuring governance, availability, and security in Data Mesh architecture

Performance & Cost Optimization:

  • Achieved 95% reduction in processing time through advanced optimization techniques (Shuffle, Spill, Caching)
  • 70% reduction in compute costs + 45% additional savings via intelligent Cluster Sizing

Pipeline Engineering (ETL/ELT/ELTL):

  • Developed large-scale ingestion flows for Medallion Architecture handling relational and non-relational data (MongoDB, Neo4J, Postgres)
  • Implemented patterns with Spark (PySpark/SQL) and frameworks like Auto Loader

Streaming & Messaging:

  • Built real-time ingestion processes with Kafka, Event Hub, RabbitMQ
  • Applied CDC/CDF patterns for data integrity in complex scenarios

Infrastructure as Code & DevOps:

  • Terraform scripts for infrastructure automation
  • CI/CD pipelines in Azure DevOps for automated schema, volume, and configuration deployments

Data Quality & Governance:

  • Quality KPIs (Freshness, Integrity) with governance dashboards (lvdash)
  • Cost and failure monitoring automation via Power Automate and Webhooks (Teams/Slack)

Mentoring & Documentation:

  • Technical upskilling through interview case evaluations
  • Technical documentation in Confluence
  • Support for Azure and Databricks certification campaigns

Stack: Databricks, Python, PySpark/Spark SQL, Azure Data Factory, Power BI, Azure DevOps, Kafka/Event Hub/RabbitMQ, CosmosDB, MongoDB, REST APIs


Radix Engenharia e Software | Data Engineer (November 2021 - December 2022 | 1y 2m)

  • Collaboration on requirements specification and big data architecture environment design
  • ETL/ELT pipeline execution: Data Factory, Databricks, Synapse Analytics, Azure DevOps
  • On-premise to cloud migration with layered storage: Raw, Trusted, Refined, Serving
  • Spark (PySpark/SparkSQL) processing with dimensional modeling
  • Self-Service BI improvements with Analysis Services, Tabular Studio, ALM Toolkit, Dax Studio, Bravo for Power BI

Stack: Azure Data Factory, Azure Data Lake Storage Gen2, Azure Databricks, Azure Synapse, Azure SQL Database, Azure DevOps, Azure Analysis Services, Power BI, Dax Studio


Sinqia | BI Analyst (August 2021 - November 2021 | 4m)

  • ETL process execution (Pentaho, SSIS, Power Query) from various sources (APIs, relational databases) with dimensional modeling
  • SQL On-Premises and Azure SQL tuning
  • Data governance documentation and improvements
  • Semantic layer and Self-Service BI environment with Power BI and Tableau
  • System improvements in Jira, Protheus, Salesforce with KPI focus
  • Dashboard creation for project tracking (savings, SLAs, satisfaction)

Stack: Power BI, Tableau, SQL Server, SSIS, Pentaho, Power Query, Python


Axxin Data Intelligence | Data Analyst (March 2020 - July 2021 | 1y 5m)

  • Report creation with SQL, MySQL, JQL
  • API integration and data correlation with internal systems and Federal Revenue (import/export)
  • Dashboard refactoring Qlik View - Power BI
  • ETL implementation with Pentaho Data Integration and Power Query
  • Data Marts and Data Warehouse requirements mapping
  • Requirements gathering with methodologies: Discovery, Design Thinking, Lean Inception, Scrum
  • Process improvements and user-focused data automation
  • Collaboration with Data Science and Data Acquisition teams

Stack: SQL, MySQL, Oracle, Power BI, Tableau, Qlik View, Pentaho, Power Query, Python


Grupo Educacional UNIS | IT Assistant (September 2018 - March 2020 | 1y 7m)

  • Data manipulation with SQL Server SGBD
  • Educational, financial, accounting, and workflow process mapping
  • Report generation for operational, managerial, and executive levels
  • Banking and collection company integration
  • RM Reports creation and RM TOTVS ERP customization
  • Database tuning (Stored Procedures, Triggers, Functions)
  • ERP RM TOTVS parametrization and release homologation
  • BI projects with Good Data and Power BI

Stack: SQL Server, RM TOTVS, Good Data, Power BI, T-SQL


FIT Networks Tecnologia em Informatica e Telecomunicacoes | Telecom Assistant (January 2017 - September 2018 | 1y 9m)

  • Technical support for Internet Provider infrastructure
  • Environment preparation for trainings (low, medium, and high complexity)
  • Network project analysis: FTTH, FTTX, FTTC
  • Internal indicator creation per ISO 9001
  • Equipment configuration: OLTs, ONUs, Switches, Mikrotik Routers, Servers
  • Commercial team technical support (pre-sales)
  • Technical manual elaboration with LaTeX
  • Protheus system support

Stack: Mikrotik, OLT/ONU, Switches, Protheus, LaTeX


Grupo Educacional UNIS | Academic Processes Assistant (May 2016 - January 2017 | 9m)

  • Academic and financial process execution
  • Shared services center indicators analysis
  • Interaction with: customer service, accounting, diploma registration sectors
  • Continuous process improvement research

Grupo Educacional UNIS | IT Administrative Assistant (April 2015 - May 2016 | 1y 2m)

  • Internal user support
  • Hardware maintenance, phone configuration, VoIP, and manageable switches
  • New employee integration with security policies
  • Wireless projects: Ubiquiti and Aerohive access point installation
  • Structured cabling projects across all units

Grupo Educacional UNIS | IT Intern (August 2014 - March 2015 | 8m)

  • Internal user support
  • Access management: Active Directory, Directory Servers
  • Server maintenance and backup routines

Cooper Standard | Apprentice (January 2013 - December 2013 | 1y)

Technical Skills

Cloud & Big Data

Databases

Visualization & Analytics

Tools & Platforms

Certifications & Achievements

Databricks Certified

Microsoft Certified

Other Certifications


Systems & Platforms

ERP & CRM:

  • ERP Protheus | RM Totvs | Salesforce | ABADI/JDE

Atlassian Suite:

  • Jira Service Desk | Jira Software | Jira Cloud

Other Systems:

  • Kenoby | Qulture Rocks | Siscomex | Mercante

Academic Background

Level Course Institution Period Status
MBA Data Engineering & Artificial Intelligence Xperiun 2026 - 2027 In Progress
MBA Business Intelligence & Analytics Xperiun 2025 - 2026 Completed
Post-Grad Scientific & Technological Modeling UNIFAL-MG & CEFET-MG 2018 - 2020 Completed
Bachelor Systems Analysis & Development UNIS 2016 - 2018 Merit Award
Technical Computer Networks UNIS 2014 - 2015 Completed
Prof. Administrative Assistant UNIS 2015 - 2016 Completed

Soft Skills

  • Multitasking ability
  • Critical thinking
  • Autonomy and creativity
  • Knowledge sharing passion

Contact & Social Media


Implementation Checklist

  • Modern layout defined (sections, icons, badges, colors)
  • Professional experiences highlighted
  • Technical skills listed
  • Bilingual sections created (Portuguese & English)
  • Language switcher implemented
  • Badges and shields added
  • Professional profiles linked
  • Additional certifications to be documented
  • Custom projects section (coming soon)
  • Blog/Articles section (coming soon)

Currently Exploring

  • Advanced Azure Data Engineering patterns
  • Databricks Delta Lake optimization
  • AI/ML integration in data pipelines
  • Cloud-native architecture design

Let's collaborate! Feel free to reach out!


Last updated: February 22, 2026

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