Mariana F.

Mariana F.

Data Scientist

Brazil
Vertrouwd lid sinds 2023
6 jaar ervaring

Ze heeft ook hands-on ervaring met unit- en integratietesten, feature store management en tools zoals Databricks, Looker en Metabase. Dankzij haar veelzijdige technische vaardigheden kan ze betrouwbare en schaalbare dataoplossingen bouwen.

Mariana heeft een sterke achtergrond in financiën en marketing en heeft de overstap gemaakt naar de technologie-industrie, waar ze vier jaar ervaring heeft. Haar expertise omvat analytics, kredietmodellering en aanbevelingssystemen, gedreven door haar passie voor gegevens en statistiek. Ze blinkt uit in het creëren van goed ontworpen, datagestuurde producten die zinvolle inzichten en resultaten opleveren.

Met een unieke combinatie van analytisch inzicht en technische vaardigheid is Mariana bedreven in het nemen van datagestuurde beslissingen en het bouwen van impactvolle producten, waardoor ze een aanwinst is voor elk datagecentreerd team.

Hoofd expertise

Apache SparkApache Spark5 jaar
AWSAWS5 jaar
Data Science5 jaar
DatabricksDatabricks5 jaar
7+

Ervaring6

QuintoAndar

Data Scientist

QuintoAndar
Information Technology (IT) and Services
Sep 2022 - Apr 2023 · 7m
  • Improved credit approvals from 20% to 50% by developing and deploying a gradient-boosting classification model.
  • Increased calculation accuracy by 30% by automating the calculation of Net Present Value (NPV) from Excel to Python.
  • Decreased manual analysis from 20% to 10% in offline tests by creating a fallback logistic regression model for credit approvals.
PythonPython
SQLSQL
QuintoAndar

Data Scientist

QuintoAndar
Sep 2022 - Apr 2023 · 7m
  • Increased 10% email click-through rate by training, optimizing, and deploying a deep learning two-tower content-based recommendation model.
  • Trained and optimized a deep learning collaborative filtering recommendation model for email campaigns.
  • Responsible for planning 2023 bets, interviewing and hiring, onboarding three new hires, and documenting legacy decisions from previous owners of recommendation models at the company.
QuintoAndar

Data Scientist

QuintoAndar
Information Technology (IT) and Services
Jan 2021 - Sep 2022 · 1y 8m
  • Improved credit approvals from 20% to 50% by developing and deploying a gradient-boosting classification model.
  • Increased calculation accuracy by 30% by automating the calculation of Net Present Value (NPV) from Excel to Python.
  • Decreased manual analysis from 20% to 10% in offline tests by creating a fallback logistic regression model for credit approvals.
PythonPython
SQLSQL
Regression Testing
QuintoAndar

Data Analyst

QuintoAndar
Information Technology (IT) and Services
Jan 2019 - Jan 2021 · 2y
  • Improved accuracy in the estimation of supply availability duration by 20% by developing a Survival Analysis method, impacting Unit Economics estimation.
  • Zeroed differences in numbers of the main business metrics across the company by developing a standardized metrics calculation in Metrics Governance initiatives.
  • Freed 25% of work time from one analyst by translating the calculation of business targets from Excel to SQL.
  • Provided reports of main business metrics for Series D and Series E investment rounds.
PythonPython
SQLSQL
CUBOCC

Data Analyst

CUBOCC
Marketing and Advertising
Jan 2017 - Jan 2019 · 2y
  • Developed a report template and process for analysis of marketing strategies of competitors across the company.
  • Developed marketing campaign results template standardized cross-company to automate performance analysis.
PythonPython
SQLSQL
Continental

Controller Assistant

Continental
Automotive
Jan 2014 - Jan 2017 · 3y
  • Calculated yearly and monthly forecast estimation for financial statements within 15% of deviation from actual values.
  • Developed dashboard templates and trained teams across countries for reporting.
PythonPython
SQLSQL

Beoordeling

Uitmuntendheid in techniek

Mariana algemene prestaties in een 90-minuten durende technische beoordeling zijn in de top 25% van de gescreende Data Scientist bij Proxify.

Educatie

Udacity
Udacity
Data Scientist2019 - 2019
Tera
Tera
Data Science2019 - 2019
UOS
University of São Paulo
Statistics2018 - 2021

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