Visa Technology & Operations LLC, a Visa Inc. company, needs a Data Scientist (multiple openings) in Foster City, CA to:

Execute model development, validation and performance tracking for risk models.
Compile complex predictive model packages for production deployment; support model installations, and monitor and calibrate production models.
Propel analytic product development via conducting statistical analyses on various data sources; and add values to products by being innovative and applying the analysis.
Define financial and analytic metrics to measure development and production outcomes and produce performance reports.
Find opportunities to create and automate repeatable analyses.
Support sales and marketing efforts with sound statistical and financial analysis; execute ad-hoc analyses to meet the fast-changing market demands.
Generate performance analysis at the aggregate level, as well as issuer level.
Interpret and present performance results to non-technical audience.
Conduct transaction data analyses with Hadoop/Cloud and big data technologies and develop deeper insights into the products using advanced statistical methods.
Position reports to the Foster City, California office and may allow for partial telecommuting.