John C. Hale work email
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John C. Hale personal email
Member of data science team at Acorns.
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Data ScientistSardineUnited States
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Senior Data ScientistAcorns Feb 2022 - PresentIrvine, California, Us- Led successful cross-functional monthly forum for fraud prevention.- Developed a package for fraud strategy generation and threshold optimization.- Used XGBoost to build a deposit fraud model, as well as a new account fraud model. Deployed to production via a scheduled job in DataBricks.- Designed and built dynamic feature sets for the risk team using PySpark.- Built unsupervised models for bot detection using UMAP and HDBSCAN. - Explored using contextual multi-armed bandits for referral comms optimization. -
Data ScientistCharles Schwab Sep 2019 - Feb 2022Westlake, Texas, UsWorked as part of a data science team within the fraud sciences & strategy organization.- Initiated and taught a Python learning bootcamp for internal fraud strategist team.- Led a monthly risk analytic forum.- Developed a login segmentation for risk scoring using K-Means and prototyped deploying it via a flask API. - Worked as part of a large cross functional team to build a solution for detecting victims of microcap pump-and-dump schemes.- Created an ensemble model consisting of logistic regression, XGBoost, and an MLP for detecting client impersonation in the call center.- Built an auto-regressive time series model for anomaly detection in applicant volumes.I also led a Python learning bootcamp and a monthly risk analytics forum. -
Devops EngineerCharles Schwab Jul 2017 - Sep 2019Westlake, Texas, UsWorked as part of a small distributed team to spread and implement DevOps practices across the organization. - Implemented server restart and service restart automations for 11 different applications using Operation Orchestration- Built two access provisioning automation and a generic automation for syncing distribution lists with databases using Operation Orchestration.- Designed an extensive deployment pipeline for an internal monolithic program, with the goal of getting to nightly builds using Bamboo.
John C. Hale Skills
John C. Hale Education Details
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Texas Tech UniversityData Science -
Texas Tech UniversityComputer Science
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Texas Tech UniversityMathematics
Frequently Asked Questions about John C. Hale
What company does John C. Hale work for?
John C. Hale works for Sardine
What is John C. Hale's role at the current company?
John C. Hale's current role is Data Scientist.
What is John C. Hale's email address?
John C. Hale's email address is jo****@****wab.com
What schools did John C. Hale attend?
John C. Hale attended Texas Tech University, Texas Tech University, Texas Tech University.
What are some of John C. Hale's interests?
John C. Hale has interest in Wake Boarding, Environment, Machine Learning, Education, Baseball, New Technologies, Science And Technology, Hunting And Fishing, Archery.
What skills is John C. Hale known for?
John C. Hale has skills like C++, C, Assembly Language, Microsoft Word, Visual Studio, Microsoft Excel, Powerpoint, Autocad, Java, Customer Service, Teamwork, Leadership.
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