May 2024 – Jul 2024 · 2 mos

• Created ML models that power product recommendations in the PayPal app

Jun 2023 – May 2024 · 11 mos

• Created recommendation models used to recommend to our customers the most relevant products sold by PayPal merchants in Smart Receipts and In-App, a critical priority for the company's complete repositioning.
• Created ML models that target customers for marketing campaigns.

Jun 2022 – Jun 2023 · 1 yr

• Led the team responsible for creating machine learning models for the Risk as a Service (RaaS) and OmniPayments portfolios. Areas of work include: digital transactions fraud prevention, in-store transactions fraud prevention, prediction of the win likelihood for contested chargebacks, debit card applications fraud prevention, and more. These models are being used both internally by PayPal teams, and they are also made available for a fee to PayPal and Braintree merchants (eg. Uber, DoorDash, ... ).

Apr 2022 – Jun 2022 · 2 mos

• Trained machine learning models that prevent fraud for many different flows and products. Led a team of Machine Learning Engineers

Apr 2020 – Mar 2022 · 1 yr 11 mos

• Trained machine learning models that prevent fraud for many different flows and products. Led a team of Machine Learning Engineers

Jan 2019 – Mar 2020 · 1 yr 2 mos

• Trained machine learning models that prevent transactional fraud for Braintree.

Sep 2018 – Dec 2018 · 3 mos

• Created features that prevent abuse and fraud for ACH (bank-funded) transactions

May 2018 – Aug 2018 · 3 mos

• Developed Machine Learning models in Python to predict the credit default probability for PayPal's consumer credit portfolio

Jul 2022 – Dec 2023 · 1 yr 5 mos

• Co-founded a startup addressing loneliness among older adults. Worked directly with seniors in retirement communities as an IT consultant to understand how they interact with technology. Used these insights to build a mobile application tailored to their specific needs, enabling them to stay connected with family and friends through video calls and messaging, and access emergency services

Aug 2017 – May 2018 · 9 mos · Greater Chicago Area

• Taught Excel to 4 batches of undergraduates at the University of Illinois at Chicago (130+).
• Focused on Excel applications for Business Analysis and Operations Management.
• Exceptional student satisfaction: 90% overall student satisfaction with my performance as a TA as per the anonymous feedback received from 70+ students.
• Anonymous free-form comments from students included:
• "Nicest TA I've ever had";
• "You are an amazing TA. Thank you!";
• "Thank you for being such a wonderful TA!!! I hope to become as knowledgeable as you one day!! I think you are a great role model for young men and especially women going into this field!";
• "Very nice person overall";
• "You are so knowledgeable about Excel!! I am impressed!! You explain things well and have a lot of patience!! Great work!";
• "Thank you for a good semester. It was fun";
• "Keep doing what you're doing".
• "Helpful when I have questions; Attention to details is great; Your availability is great as a TA".
• Tasks included:
• Teaching: independently taught 2 labs/lectures per week (without the presence of faculty);
• Grading: managed 25% of the students' final grades.

Oct 2016 – Jun 2017 · 8 mos · Milan, Italy

• Provided management and IT consulting services to Clients in the mobile payments industry
• Analyzed data resulting in a paper published on the corporate website and national newspapers about the consumer usage and expectations over the innovative payment instruments
• Built Excel tools using Power Query for automating data imports, cleansing, and analysis, resulting in a 40% efficiency increase
• Improved return on investment from direct marketing initiatives by providing KPI analyses and dashboards to the management
• Translated business needs into User Requirements Specifications (URS) and Functional Requirements Documents (FRD)
• Oversaw the Product Development and User Acceptance Testing (UAT) teams leading to a 10% increase in final product quality

Apr 2016 – Sep 2016 · 5 mos · Luxembourg

• Empowered data-driven decision making by building economic simulations and forecasts for new products and pricing changes
• Authored KPI dashboards and ad-hoc analyses for the management
• Took the initiative of designing and developing Excel tools for streamlining financial processes leading to a 10% efficiency increase

Jan 2016 – Mar 2016 · 2 mos · Houston, Texas, United States

• Accounting and tax consulting to Italian companies wanting to open a subsidiary in the US
• Financial and managerial reporting
• Bookkeeping
• Auditing
• Tax filings (Federal and State)

Jun 2015 – Jul 2015 · 1 mo · Milan, Italy

• Assisted the authors of the textbook "International Financial Reporting Standard. Accounting and Financial Reporting Using IFRS" (2015, Antonio Marra, Angela Pettinicchio, Massimiliano Semprini, MC Graw Hill).
• Wrote some parts of the book;
• Reviewed all the chapters both for structure/layout and contents.
• From the Acknowledgments page of the book:
• "An invaluable work has been done by Claudia Marangoni and Chiara Poletti, tireless coordinators and organizers of this work, who made – with no doubt – this book a better one. We cannot thank them enough for their competence and trustworthiness."
• http://www.amazon.it/International-financial-reporting-standards-Antonio/dp/8838674965

Sep 2010 – Sep 2010 · 0 mo · Fidenza, Italy

• Kept accounting books to date
• Handled employees pay slips

Jun 2010 – Jul 2010 · 1 mo · Parma, Italy

• Managed and significantly improved the usability of data regarding competitors products
• Supported the development of new web pages

Mar 2010 – Mar 2010 · 0 mo · Dublin, Ireland

• Created new web pages for a client's website

Jul 2009 – Jul 2009 · 0 mo · Fontanellato, Italy

• Accounting assistant
• Reorganized customers’ documents

Jan 2009 – Jun 2015 · 6 yrs 5 mos · Fontanellato, Italy

• Professional video shooting at weddings and other events
• Prepared financial statements and kept accounting books
• Proposed and implemented the change from paper-based bookkeeping to computer based (Wincoge software, resulted in a 60% reduction in the time spent)