Crystal Lee Email & Phone Number

Seattle, Wa, Us

San Jose, Ca, Us

San Jose, Ca, Us

Seattle, Washington, Us

• Identified opportunities to increase top of funnel conversions and performed analytical deep-dives to discover actionable insights. Partnered with product teams to execute on opportunities and incorporate insights into product roadmaps, growing user signed-in rates by >60%.• Designed, analyzed, and guided strategy for 50+ A/B tests and defined user engagement success metrics for on-site feature improvements and product launches. Supported the complete redesign of the home details page, impacting 50M monthly unique users.• Collaborated cross-functionally and lead the development of Zillow's first automated A/B testing platform and Tableau results dashboard, reducing the total test process time by 50% and used by 20+ product managers.• Established an experimentation framework for consistent, objective and strategic decision-making across the company. Created a pre-test launch process to enable thorough experiment design and transparency.• Developed datamart of 170+ user engagement metrics, reducing manual query time by 40%. Built ETL process using Hive SQL to aggregate clickstream data. Datamart used by 100+ team members for analysis and to improve data quality and anomaly detection at scale.• Facilitated the data empowerment of product managers by leading trainings on surfacing and interpreting clickstream data and A/B test results. Built self-service Mode Analytics reports and Presto SQL queries for data exploration.

New York, Ny, Us

• Led the product development, including gathering requirements, documentation, and training, of an automated underwriting tool for evaluating the financial impact of wildfire risk to be used by 70+ analysts. Reduced total processing time by more than 50%.• Facilitated strategic decision-making for clients’ Workers Compensation and Property Insurance business by estimating the financial impact of catastrophic events, improving underwriting strategy, and understanding risk concentrations. • Drove insights and reporting for managing catastrophe risk. Shared recommendations through clear presentations and visualizations to C-suite executives 4+ times yearly.• Assigned, coordinated, and reviewed work across technical teams in the development of an underwriting tool for the evaluation and management of severe convective storm risk. • Worked with large data sets; performed regression analyses and utilized data visualization techniques to assess model accuracy.• Assisted with user acceptance testing of Guy Carpenter's online exposure visualization and portfolio management platform and executed test cases relating to map layers and functionality, geocoding, and analytics reporting.• Co-led the local chapter of the Emerging Leaders employee resource group, which develops and engages Guy Carpenter's talented next generations to be the future leaders in the industry.

New York, Ny, Us

• Independently investigated how to quantify non-modeled perils, such as industrial accident, hazardous facility, and commuting aggregations risk.• Assisted clients in understanding their exposure by gathering and preparing data. Assessed data quality and reconciled any inconsistencies, including verifying exposure characteristics and refining location information for improved geocoding accuracy.• Assisted clients in using Guy Carpenter's online exposure visualization and portfolio management platform.• Performed portfolio and model evaluations for any model changes or updates.

Boulder, Colorado, Us

• Taught students the fundamentals of MATLAB and Mathematica in the differential equations lab course of over 25 people.• Led lectures and created worksheets and practice exams for once-a-week recitations, incorporating activities that encouraged classroom participation.• Held daily office hours to further assist students 1-on-1 and provide guidance on projects.

Boulder, Colorado, Us

Analytically and numerically investigated equations that describe shallow water waves with applications to tsunami modeling.

Seattle, Wa, Us

Master Of Science (M.S.), Applied Mathematics

Bachelor Of Science (Bs), Mathematics W/ A Specialization In Applied Mathematics

Master Of Science (M.S.), Applied Mathematics, Graduate Certificate In Oceanography