Summary
Overview
Work History
Education
Skills
Software
Interests
Timeline
Clarisa Castelloni

Clarisa Castelloni

Data Analytics Manager
Buenos Aires

Summary

Experienced Data and Analytics Leader with over fifteen years of experience in data field and five on team leading for telecommunications, banks and SaaS companies.
Eager to contribute to team success through hard work, attention to detail and excellent organizational skills. Motivated to learn and excel.
Well developed skills in data analysis, machine learning, data management, data visualization, data governance and creative thinking.
Achievements include developing data pipelines and models, mounting datawarehouses through guiding teams to deliver data insights; constructing a solid self service layer and create visually appealing and easy-to-understand dashboards defining and governing key metrics, creating models to predict company churn, leverage revenue, predict and analyze NPS, describe and segment the company portfolio.

Overview

17
17
years of professional experience
14
14
years of post-secondary education
5
5
Languages

Work History

Analytics Manager

Yalo
Buenos Aires
09.2022 - Current
  • Leading a team of six analysts to translate complex business objectives into actionable data management plans for individual clients and customer classes.
  • Delivering data insights through Looker Generic Reports, Customized Reports, enabling Data API's and ad-hoc analyses.
  • Carrying out meetings with clients to identify needs and presenting data insights results; collaborating with customers enablement of company products.
  • Working with product managers on strategies and proposals of new products.
  • Managing large-scale implementations and developments on platforms such as Looker, BigQuery, Databricks, Snowflake.
  • Overseeing data visualization projects for B2B and B2C clients, delivering comprehensible and invaluable visuals for presentation to audiences of different technical understanding.
  • Devising and deploying predictive models using machine learning algorithms to drive business decisions.
  • Leveraging mathematical techniques to develop engineering and scientific solutions.
  • Analyzing large datasets to identify trends and patterns in customer behaviors.
  • Running statistical analyses within software like Python to process large datasets.
  • Supervising data teams in order to compile, clean, manipulate raw data and design ETLs models.

Advanced Analytics Manager

Telefonica
Buenos Aires
11.2017 - 09.2022
  • Led a data analytics team for commercial, marketing and networks optimization, achieving to raise NPS and Customer Satisfaction indicators by more than 20pp. generating strategies to increase B2C and B2B revenue and to monetize prepaid segment boosting digitization, all through implementation of analytical models.
  • Led projects and analyzed data to identify opportunities for improvement.
  • Developed and maintained courteous and effective working relationships.
  • Responded for Customer Quality and Customer Experience analysis and reports. Increased customer satisfaction by resolving billing issues.
  • Developed and led descriptive and predictive models for marketing and commercial planning: target clustering, portfolio characterization, analysis and monitoring of KPIs, pricing, development of customer loyalty and customer acquisition strategies, A/B testing for new products and permanence analysis.
  • Responsible of the generation of KPI's for optimization of mobile network performance. Analysis of cell phone signaling by antennas. Geolocation and map analysis.
  • Managed large data sets in Hadoop, Hive and Spark and SAS Viya environment. Developed machine learning models and statistical analysis in R, Python and SAS.
  • Led a LATAM regional project for 8 countries to pursue implementation of standardized KPI's, their reports and advanced analytics methodologies.

Data Mining & BI Sr. Analyst

Cablevision
Buenos Aires
02.2015 - 11.2017
  • Answered data questions for company leaders as subject matter expert to enhance decision making.
  • Applied loss functions and variance explanation techniques to compare performance metrics.
  • Presented findings orally and in writing with advanced mathematical models.
  • Ran statistical analyses within software to process large datasets.
  • Modeled predictions with feature selection algorithms.
  • Developed models for default payers and churn, reduced churn by 20%, increased invoice by 10%. Coordinated statistical data analysis, design, and information flows.
  • Elaborated clusters of TV-viewers and recommendation engines. Team worked to reduce advertising budget elaborating attribution models. Contribution of vision and intelligence to processes related to technological networks. Forecasted annual sales.
  • Used of large volumes of data with SQL in SAS and Teradata environments. Statistical modelling in R and SAS.

Senior Data Mining Risk Analyst

Santander Bank
Buenos Aires
06.2008 - 07.2013
  • Developed and controlled execution of reporting and analytics for multiple operations departments.
  • Established strategy for operations reporting and analytics, identifying key needs for deliverables while driving continuous improvement of processes.
  • Identified problem areas in loan portfolio, analyzed risks and suggested appropriate solutions.
  • Developed behavior score of customer portfolio. Contributed in elaboration of collection score for default payers.
  • Monitored and analyzed financial, statistical and operational data trends. Managed large data sets with SQL, SPSS, Visual Basic, and Visual Fox Pro.

Customer Service Representative

Santander Bank
Buenos Aires
12.2006 - 05.2008
  • Maintained customer satisfaction with forward-thinking strategies focused on addressing customer needs and resolving concerns.
  • Assisted customers with setting appointments, special order requests, and arranging merchandise pick-up. Included checking accounts, savings accounts, loans and lines of credit. Negotiated prices, terms of sale and service agreements.
  • Offered advice and assistance to customers, paying attention to special needs or wants.
  • Leveraged sales expertise to promote products and capitalized on upsell opportunities.
  • Answered constant flow of customer calls with minimal wait times.

Education

Deep Learning Diploma - Data Management Technology

Buenos Aires Technologic Institute, Buenos Aires
02.2019 - 06.2020

Machine Learning: Supervised Learning, regularization techniques, Unsupervised Learning, Recommendation Systems. Convolutional Neural Networks (CNN), Neural Recurrent Networks (RNN), Computer Vision, Reinforcement Learning.

Big Data Diploma - Data Management Technology

Buenos Aires Technologic Institute, Buenos Aires
05.2017 - 12.2017

Data Warehouse and OLAP, Data Mining Techniques and Machine Learning, Techniques and Tools for Big Data, Visualization and Reporting

Bachelor of Science - Actuarial Science

Buenos Aires University, Buenos Aires
04.2006 - 12.2017

Management And Leadership Diploma - Business Management

Argentinian Catholic University, Buenos Aires
03.2012 - 12.2012

Management and Leadership Diploma Negotiation, Leadership, Coaching, Oratory, Communication skills and Time

Skills

    Reporting analytics

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Software

Python

R

SAS

Hadoop

SQL-Hive

Teradata

SPSS

PySpark

PowerBI

Tableau

Microstrategy

QlikView

Looker

Big Query

Databricks

Interests

Climate change

Geography and GIS

Sound and music production

Yoga

Coffee brewing

Timeline

Analytics Manager - Yalo
09.2022 - Current
Buenos Aires Technologic Institute - Deep Learning Diploma, Data Management Technology
02.2019 - 06.2020
Advanced Analytics Manager - Telefonica
11.2017 - 09.2022
Buenos Aires Technologic Institute - Big Data Diploma, Data Management Technology
05.2017 - 12.2017
Data Mining & BI Sr. Analyst - Cablevision
02.2015 - 11.2017
Argentinian Catholic University - Management And Leadership Diploma, Business Management
03.2012 - 12.2012
Senior Data Mining Risk Analyst - Santander Bank
06.2008 - 07.2013
Customer Service Representative - Santander Bank
12.2006 - 05.2008
Buenos Aires University - Bachelor of Science, Actuarial Science
04.2006 - 12.2017

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Clarisa CastelloniData Analytics Manager