Roger Ren Email and Phone Number
As a Senior Consultant at EY, I play a pivotal role in developing and implementing quantitative models for financial institutions, leveraging my expertise in machine learning, data science, and credit risk. With rich experience in developing machine-learning models, I am proficient in utilizing open-source tools and libraries, including scikit-learn, pandas, NumPy, XGBoost, and statsmodels, for effective model development and analysis.With a Master's degree in Management in Artificial Intelligence from the Schulich School of Business - York University, and a Bachelor of Science (Honors) in Applied Mathematics from Western University, I have a solid background in statistics and mathematics, coupled with specialized expertise in risk modelling.I am a solution-driven self-starter with a keen desire to contribute both independently and within team settings, particularly in the data science and credit risk domain. Motivated by challenging and complex problems, I strive to deliver high-quality and impactful solutions that meet the client's needs and expectations.
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Senior ConsultantEy Aug 2023 - PresentToronto, Ontario, CanadaPossess extensive experience in developing machine learning models, leveraging the capabilities of open-source tools and libraries such as scikit-learn, pandas, NumPy, XGBoost, and statsmodels to drive impactful model development and analysis.Actively engaged in a major financial institution's extensive model integration initiative, successfully transitioning risk models from SAS to Python. Constructed a Probability of Default (PD) model for a substantial portfolio, which included raw data preparation, model development, and performance testing. Managed an expansive dataset with over 15 million records and 350 variables during the model development phase. Additionally, contributed to the development of a non-retail Borrower Risk Rating (BRR) model by utilizing PySpark for data preparation tasks.Independently developed over 50 Python/PySpark-defined functions, significantly streamlining the risk modelling process and enhancing the efficiency and accuracy of the stress PD model.Collaborated closely with cross-functional teams to ensure strict adherence to banking industry standards and regulatory compliance.Proficient in utilizing cloud-based machine learning platforms, particularly AWS SageMaker, to enhance project efficiency and effectiveness.Contributed significantly to the creation of compelling PowerPoint presentations for client engagements, actively participating in client meetings to facilitate discussions and drive successful deal outcomes.Proven ability to thrive in high-pressure environments, adeptly managing stressful projects and navigating complex tasks to meet tight deadlines with precision and efficiency. -
Staff ConsultantEy Aug 2022 - Aug 2023Toronto, Ontario, CanadaApplied advanced internal ratings-based (AIRB) methodologies, specializing in developing and implementing quantitative models, including Probability of Default (PD), Loss Given Default (LGD), and Exposure at Default (EAD).Leveraged extensive domain knowledge and expertise to refine and enhance credit risk models, fostering a deep understanding of credit risk across various financial products and markets. -
Consultant InternshipCapco Jan 2022 - Aug 2022Toronto, Ontario, CanadaAssisted in developing an in-house cloud-based digital and automation solution for the financial services industry.Conducted case analysis for the project and authored competitor analysis and Statement of Work (SOW).Performed data preparation using MySQL Workbench and Excel.Utilized machine learning (ML) models to analyze customer business data and generate predictions of future business trends (task volumes) using Python.Conducted or participated in weekly meetings with the executive sponsor, product owner, and other consultants to provide progress updates and discuss any issues. -
Software DeveloperAurora Technology Development Dec 2019 - Apr 2021Toronto, Canada AreaSoftware Development
Roger Ren Education Details
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Applied Mathematics -
Management In Artificial Intelligence
Frequently Asked Questions about Roger Ren
What company does Roger Ren work for?
Roger Ren works for Ey
What is Roger Ren's role at the current company?
Roger Ren's current role is Senior Consultant, FSRM at EY | Risk Modelling.
What schools did Roger Ren attend?
Roger Ren attended Western University, Schulich School Of Business - York University.
Who are Roger Ren's colleagues?
Roger Ren's colleagues are Dorothy L., Hanna Korzun, Marty Arbuckle, Pcc, Sergio Watanabe Trianto, Alberto Francolini, Aidan Baughan, Soumya Saini.
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Roger Ren
Lead For The Development, Maintenance And Effective Use Of Enterprise Level Business Intelligence Solutions To Enable Gaining Insights From Data At Region Of PeelWaterloo, On1peelregion.ca
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