Raphael Avellar
Raphael Avellar

Senior Data Analyst / Data Engineer

Actively looking · Member since 2 Oct 2026
Location
Pindamonhangaba, Brazil
Desired salary
80k–160k USD/yearly
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Data Analyst and Data Engineer with more than six years of experience designing, building, and optimizing data solutions across data engineering, analytics engineering, and business intelligence.

I work with SQL, Python, PySpark, Azure Data Factory, Databricks, Airflow, BigQuery, Snowflake, and Power BI to create reliable data pipelines, analytical datasets, and scalable reporting platforms.

I have hands-on experience developing ETL/ELT processes, integrating data from multiple sources, and designing dimensional and relational data models for analytics and data warehousing.

I build Power BI semantic models, dashboards, DAX metrics, and KPI monitoring solutions that help business stakeholders make informed decisions.

I focus on data quality, governance, validation, performance optimization, and operational reliability throughout the delivery lifecycle.

I collaborate closely with technical teams and business stakeholders to gather requirements and translate them into practical, scalable data products.

Notice period: Immediately

Skills

29 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Senior Data Analyst DOJO – SmartWays

I design and implement end-to-end data and BI solutions, from business requirements through production delivery. I develop and optimize data integration and ETL/ELT processes that support analytical workloads and business reporting.

I design dimensional and relational models, build Power BI semantic models and dashboards, and create advanced analytical metrics for decision-making. I also implement data quality, governance, and validation processes to improve reliability and consistency.

I collaborate with data engineering, database, and business teams to translate requirements into scalable technical solutions. I optimize data processes and BI environments to improve performance, reliability, and operational efficiency.

Data Consultant Faculdade Unimed

I processed, cleansed, and transformed large datasets using SAS to support reporting, analytics, and business decision-making. I built optimized analytical datasets and data preparation processes for management reporting.

I automated ETL processes to improve data delivery, standardization, and processing efficiency. I also developed customized analytical reports and interactive Qlik Sense dashboards focused on strategic KPIs and operational performance.

I provided data-driven insights and recommendations to business stakeholders based on analytical findings.

Data Analyst Fontes Promotora

I developed and maintained management reporting solutions for multiple business areas. I structured data environments and designed models to improve data storage, integration, and analytical performance.

I monitored operational KPIs and investigated performance variations to support continuous improvement. I supported BI environments, including data loads, user access management, and scheduled processes.

I gathered requirements directly with stakeholders and translated business needs into BI and data solutions.

Owner / BI Consultant Rozan Tecnologia

I designed and delivered BI solutions for clients, covering requirements gathering, data preparation, data modeling, dashboard development, and delivery. I customized dashboards and reports according to business requirements.

I supported development environments and trained end users on BI solutions. I also defined project scope, prioritized deliveries, and coordinated execution with clients.

Education

Learning history

Universidade Anhembi Morumbi

Postgraduate Degree, Business Intelligence and Analytics

Postgraduate degree in Business Intelligence and Analytics.

Universidade de Taubaté (UNITAU)

Bachelor's Degree, Business Administration

Bachelor's degree in Business Administration.

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