andrey santos
andrey santos

Data Analyst

Actively looking · Member since 10 Sep 2026
Message
Location
São Paulo, Brazil
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Part Time
Experience level
Junior

About

Professional summary

I am a Data Analyst with over three years of experience in analytics, credit risk, and model risk at Santander Brasil. I use data-driven analysis to support business decisions, regulatory monitoring, and process improvement in banking environments.

I have hands-on experience working with large datasets using SQL, Python, SAS, PySpark, and Databricks. My work includes developing analytical routines, monitoring credit risk parameters, and translating statistical indicators into actionable business context.

I build dashboards and recurring reporting solutions with Power BI, DAX, Power Query, Tableau, and Qlik. I enjoy improving reporting workflows, automating manual processes, and investigating data-quality issues to make information more reliable and accessible.

In my model risk work, I have supported Credit Conversion Factor estimation and monitoring, IFRS 9 parameter calculations, and the assessment of AUC, Gini, and HHI indicators. I have also optimized analytical processes, reducing execution and reporting turnaround times significantly.

I am currently completing an undergraduate degree in Mathematics and have fluent English. I am seeking junior to mid-level Data Analyst opportunities where I can contribute analytical, business intelligence, and credit risk expertise in a fully remote role.

Notice period: Immediate

Skills

13 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Development

Languages & Frameworks

Experience

Career history

Data Analyst | Model Risk Santander Brasil

Developed SQL, Python, and SAS analyses for Credit Conversion Factor estimation and monitoring across multiple banking portfolios. Supported the assessment of credit risk parameters and recurring regulatory model-monitoring activities.

Monitored AUC, Gini, and HHI indicators to evaluate model performance, stability, and concentration. Applied PySpark and Databricks to IFRS 9 statistical calculations on large banking datasets, optimized a CCF routine from approximately four hours to 21 minutes, and created Power BI visualizations for credit risk discussions.

Analytics Intern | Credit Risk Santander Brasil

Developed a geospatial Power BI dashboard with daily updates and helped identify an operational inconsistency affecting regional delinquency indicators. Supported the investigation and correction of the related process.

Automated recurring analytical routines and information consolidation using SQL, Python, and SAS. Improved a monthly Power BI reporting workflow from approximately 15 days to two days, prepared dashboards with DAX and Power Query, and supported testing and validation of payroll-loan credit policy changes.

Education

Learning history

Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP)

Undergraduate Degree in Mathematics - Teaching Licensure, Mathematics

In progress; expected graduation in December 2026.

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