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Katarzyna Helena Kubacka

Katarzyna Helena Kubacka

Fraud Analyst

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Technologies

My Portfolio Highlights

My New Track

Python Data Fundamentals

My New Course

Introduction to Python

My New Track

Python Data Fundamentals

Statistical wizard, casting spells of significance on data experiments.

My Work

Take a look at my latest work.

course

Data Manipulation with pandas

course

Introduction to Python

course

Intermediate Python

course

Data Manipulation with pandas

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to Python
Introduction to SQL
Intermediate SQL
Intermediate Python

My Work Experience

Where I've interned and worked during my career.

Uber | Nov 2022 - Present

Senior Fraud Investigator

* Analyzing and mitigating large-scale fraud trends using SQL, Google Sheets, Google Apps Script, and Python. * Monitoring marketplace activity for new fraud trends. * Implementation and maintenance of fraud mitigation rules. * Creation and maintenance of fraud prevention processes documentation and dashboards. * Collaborating with the legal team on adjusting fraud mitigation solutions to legal and employment requirements. * Assisting various stakeholders by providing risk investigator expertise and explaining the fraud prevention process complexities in lay terms. * Mentoring and training Junior Investigators.
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Uber | May 2021 - Nov 2022

Account Security & Risk Knowledge Base Specialist

* Supporting stakeholders with Risk Support knowledge base validation/ analysis, risk process reviews, contact type deep-dives, and translations. * Resolving knowledge base requests for Risk and Compliance LOBs via the Jira platform. * Providing Risk Support expertise to risk stakeholders and other LOBs' representatives.

Uber | Oct 2019 - Apr 2021

Risk & Compliance Specialist

* Solving contacts from customers impacted by fraudulent activity. * Reactively reviewing allegedly illegitimate trips and transactions or compromised accounts. * Summarizing findings from the cases tackled into fraud trends and escalating them to appropriate teams. * Mentoring and training junior team members. * Proposing process improvements to adjust it to the current fraud trends.

Armatis-LC Polska Sp. z o.o. | Aug 2018 - May 2019

Ryanair's Customer Service Agent

* Providing advice and guidance to Ryanair's passengers. * Reviewing customers' compensation requests per 2004/EU261. * Reviewing lawyers' pre-court correspondence written on behalf of Ryanair's passengers. * Investigating cases with lost transfer payments. * Mentoring junior members of staff.

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