Erica Wong

Erica Wong

Senior Data & Risk Analytics Professional
Brazil
English, Portuguese, French
Full-time Remote

نبذة عني

Data & Risk Analytics professional and Statistician with 15+ years of experience transforming complex datasets into actionable insights, statistical models, KPIs, dashboards, and business recommendations across fintech, …

الخبرة

Payments Risk Analyst

Coinbase · Petrópolis , Rio de Janeiro , Brazil
Jan 2022 - Dec 2025 · 3 سنوات 10 أشهر

<p>Performed data-driven payments risk analysis to identify fraud patterns, high-risk customer segments, false positives, and opportunities to improve transaction controls.</p><p> Analyzed user, transaction, vendor, and risk-rule data to support decisions on transaction limits, customer segmentation, risk controls, and account restrictions.</p><p> Evaluated risk rules using data-quality metrics and false-positive rates to improve fraud detection while reducing unnecessary customer friction.</p><p> Investigated payment-risk and vendor-data discrepancies, identifying root causes and coordinating remediation with internal and external stakeholders.</p><p> Served as DRI for payments-risk vendors including Sardine, GIACT, Chargebacks911, Ekata, Emailage, Alterya, and Blockaid; managed vendor incidents and data-quality issues.</p><p> Built and maintained Looker dashboards to monitor vendor performance, risk data, data quality, and operational metrics.</p><p> Collaborated with Risk, Fraud, Engineering, Product, Operations, and external vendors to resolve analytical and data-quality issues.</p><p> Saved $1M+ by resolving vendor billing discrepancies; enabled the Chargebacks system to return to production, contributing to $3M in annual chargeback savings.</p><p> Identified and mitigated ACH fraud involving fraudulent documentation, generating $600K+ in savings; supported vendor renewals generating $2M+ in additional savings.</p>

CRM Coordinator (Lead)

Fundação Getúlio Vargas (FGV) · Petrópolis , Rio de Janeiro , Brazil
Oct 2020 - Dec 2021 · 1 سنة 2 أشهر

<p>Automated customer segmentation, mailing extraction, lookalike analysis, relationship rules, and ad-hoc customer/profile analyses using R and IBM SPSS Modeler.</p><p> Designed and implemented ETL workflows to automate data extraction and mailing generation, improving data quality and reducing manual processing.</p><p> Translated business requirements into repeatable analytical workflows and automated reporting processes.</p>

Market Intelligence Coordinator (Lead)

Fundação Getúlio Vargas (FGV) · Petrópolis , Rio de Janeiro , Brazil
Feb 2019 - Oct 2020 · 1 سنة 7 أشهر

<p>Automated databases supporting digital KPIs and management reporting using SQL and Tableau Server.</p><p> Redesigned Tableau dashboards using data visualization and visual analytics techniques to improve insight generation and decision support.</p><p> Performed exploratory data analysis to identify customer behavior patterns, trends, and conversion opportunities using SQL and SPSS Modeler.</p><p> Developed pricing and marketing analytics to optimize investment allocation and automated manual processes, saving approximately 5 hours per week.</p>

Senior Fraud & Risk Analytics Analyst

Ipiranga · Petrópolis , Rio de Janeiro , Brazil
Apr 2016 - Nov 2018 · 2 سنوات 7 أشهر

<p>Analyzed complex Travel & Expense, accounts, loyalty, operational, and transactional datasets to identify fraud patterns, anomalies, trends, and control weaknesses.</p><p> Developed and implemented fraud detection and risk analytics models supporting Internal Controls and Fraud Prevention programs.</p><p> Performed data mining, statistical analysis, exploratory analysis, and visualization to identify suspicious behaviors and emerging fraud risks.</p><p> Partnered with investigators, Audit, Internal Controls, and business stakeholders to investigate fraud cases and improve prevention methodologies.</p><p> Evaluated analytical tools and capabilities to strengthen fraud detection and prevention; documented methodologies, assumptions, data sources, and model outputs for auditability.</p><p> Led risk and analytics models within Internal Controls and delivered fraud analytics workshops for the Audit team.</p><p> Implemented a fraud detection model across Oil & Gas distribution bases that identified approximately R$200K in fraud and operational losses within five months.</p><p> Identified fraud within a customer loyalty program, generating approximately R$180K in annual savings.</p>

Business Project Analyst

Rio 2016 Olympic Games Committee · Petrópolis , Rio de Janeiro , Brazil
Aug 2015 - Apr 2016 · 8 أشهر

<p>Delivered telecom and technology requirements for the Copacabana cluster and planned technology needs for the Volleyball Arena venue.</p><p> Managed spectrum delivery activities and coordinated project requirements with cross-functional stakeholders.</p>

Senior Quality Process Analyst

Oi S.A. · Petrópolis , Rio de Janeiro , Brazil
Jun 2012 - May 2015 · 2 سنوات 10 أشهر

<p>Led a Six Sigma program that avoided more than €2M in penalties.</p><p> Improved regulatory processes and identified opportunities to reduce operational costs and unnecessary activities.</p>

Senior Statistician

Fundação Getúlio Vargas (FGV) · Petrópolis , Rio de Janeiro , Brazil
Apr 2009 - Jun 2012 · 3 سنوات 2 أشهر

<p>Automated daily statistical tasks, reducing delivery time from approximately one week to one day by replacing manual Excel workflows with automated code.</p><p> Led statistical sample design for surveys, improving confidence in results and methodological quality.</p><p> Prepared methodological materials for FGV surveys based on OECD parameters, supporting international recognition of the organization.</p>

Statistical Consultant

PUC-Rio · Petrópolis , Rio de Janeiro , Brazil
May 2008 - Apr 2009 · 11 أشهر

<p>Provided statistical consulting and analytical support for research and data-driven projects for a an Oil and gas company</p>

Statistical Intern

Ipsos · Petrópolis , Rio de Janeiro , Brazil
Feb 2008 - May 2008 · 2 أشهر

<p>Supported statistical research, data preparation, analysis, and reporting activities for market research</p>

المشاريع

Chargeback system

Coinbase, Inc.
المدة : 01-Jul-2022 - 30-Sep-2022

<p>I had to investigate a problem in the chargeback fighting logic where the initial data suggested one explanation, but the underlying patterns were more nuanced. I broke the problem into smaller hypotheses, validated the data sources, compared segments and time periods, and separated correlation from the factors that could actually explain the outcome. I then translated the findings into a clear recommendation and highlighted the assumptions and limitations. That approach helped stakeholders focus on the real driver instead of reacting to the first headline number.</p>

المهارات

Data Analysis Exploratory Data Analysis Statistical Analysis Data Mining Predictive Analytics KPI Development Root Cause Analysis Payments Risk Fraud Detection Fraud Analytics Risk Assessment Risk Modeling Transaction Risk Chargebacks ACH Fraud False Positive Analysis Risk Rules Internal Controls Tableau Looker Dashboards Data Visualization Management Reporting Visual Analytics Business Intelligence SQL Python SAS SPSS Modeler STATA ETL Relational Databases Snowflake GitHub Machine Learning Supervised Learning Unsupervised Learning Statistical Modeling Segmentation Six Sigma Stakeholder Management Process Automation Process Improvement Data Quality Data Governance Cross-functional Collaboration IBM SPSS Modeler Tableau Server Oracle BPMN
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