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Constantly Curious.

Data Nerd.

Easily Amused.

Welcome to my corner of the Internet! 

Thanks in advance for visiting!

If you wanted to see Gibbs & Chewie - please visit their Instagram page instead

EXPERIENCE

Fraud Data and Business Analyst | Remitly | Seattle, WA

June 2016 – June 2018

  •  Identified and monitored fraud trends and performed risk analysis for day-to-day operations

    • Forecasted expected fraud losses using regression analysis

    • Analyzed fraud-prone customer populations using customer segmentation techniques

      • Reduced losses in a risky corridor by 75% within 4 months

      • Maintained flat fraud dispute rate as business increased over 100%

    • Translated data into fraud signals and worked with engineering to turn signals into features

    • Implemented and documented training for investigation team to identify fake bank statements

  • Partnered with data science team to develop machine learning tools to increase efficiency in risk reviews

    • Provided subject matter expertise to help identify features and provide feedback on tool outputs

    • Improved precision of the output to target specific populations in addition to all customers

  • Established best practices for the fraud team

    • Drove weekly communication with international risk operations team to understand trends from real time investigations to improve product and prevent fraud

    • Created metrics and dashboards to increase transparency within the larger organization

    • Developed end-to-end process for risk rules with minimal impact to operations 

    • Implemented code reviews and QA process for fraud analyst team

 

Senior Consultant | Hitachi Consulting | Seattle, WA

April 2015 - April 2016

  • Led data and business intelligence development for a $50 million customer refund program at an international telecommunication company

    • Identified customer population by consolidating key information across various department databases

    • Managed 3 TB database for legal counsel

    • Aggregated and analyzed customer segmentation data to support legal counsel

    • Coordinated backend database update schedule with multiple departments to ensure efficient customer refund

  • Migrated 15 million customer record data from vendor to client database

    • Cleansed data and provided customer segmentation logic

    • Reduced data upload time by 50% through Python implementation

    • Maintained data integrity with vendor by performing range, constraint, data type, and cross-reference validation

 

Consultant | Hitachi Consulting | Houston, TX

July 2012 - April 2015

  • Created and delivered prototype for a digital worker’s handbook for upstream oil and gas client as the lead business intelligence developer

    • Parsed database logic for legacy handbook entry system

    • Normalized database to improve report generation by 20%

  • Provided business intelligence development and analysis for casino client

    • Migrated and optimized data for report generation in an EDW system

    • Trained clients to troubleshoot report errors

  • Managed a cross-functional team to deliver a client’s internal SharePoint web portal using Agile project management practices

    • Lead business requirements meetings and worked with marketing team to identify target users’ needs

    • Mapped company-wide roll-out strategy of internal web portal with client marketing team
       

Technical Manager | Who’s HOU | Houston, TX

November 2011 – May 2012

  • Managed technology aspects of Who's HOU project, a digital driven showcase to promote Houston’s music, film, and interactive industries

  • Conducted user survey to determine content type for the site

  • Assisted in writing and pursuing grants and donations

  • Assisted in the launch of the project at South by Southwest (SXSW) 2012

  • Details available: Who's HOU

 

Student Co-Founder | ZikomO NeoSyp | Houston, TX

September 2010 – May 2011

  • Focused on the device user experience and interface for an award winning prototype for neonatal syringe pump for developing countries

  • Developed business plan for initial prototype distribution

  • Applied for provisional patent in 2011

  • Details available: Appropedia, Engineering for Change 

resume
PUBLICATIONS

Journal

  • Lewinski, N., Zhu H., Ouyang, C., Conner G., Wagner, D., Colvin, V., Drezek, R. Trophic Transfer of Amphililic Polymer Coated CdSe/ZnS Quantum Dots to Danio rerio.” Nanoscale. 2011 Aug;3(8):3080-3.

  • Lewinski, N., Zhu, H., Jo, H-J., Pham, D., Kamath, R., Ouyang, C.,Vulpe, C., Colvin, V., Drezek, R. Biodistribution of water solubilized CdSe/ZnS quantum dots in Daphnia magna. Environmental Science & Technology. 2010 Feb: 44(5): 1841-6.

 

Conference

  • Sung, C., Kamath, R., Cui, Y., Ouyang, C., Carstens, E., Ramos, R., Oden, Z. M. Design of a novel mechanical syringe pump for neonatal care in low-resource settings. 2011 IEEE Global Humanitarian Technology Conference (Oct. 2011)

  • Lewinski, N., Kamath, R., Ouyang, C., Zhu, H., Jo, H., Pham, D., Vulpe, C., Colvin, V., Drezek, R. Biodistribution of amphiphilic polymer coated CdSe/ZnS QDs in Daphnia magna. International Conference on the Environmental Implications and Applications of Nanotechnology (June 2009)

  • Lewinski, N., Zhu, H., Ouyang, C., Colvin, V., Drezek, R. Fluorescence localization of water solubilized CdSe/ZnS QDs in the freshwater invertebrate, Daphnia magna. NSTI Nanotechnology Conference and Expo (May 2009)

EDUCATION

Masters in Bioengineering

Rice University | Houston, TX | 2012

 

B.S in Bioengineering

Rice University | Houston, TX | 2011

Resume

SKILLS

Technical

SQL

Python

Tableau

Teradata

ETL

C#

Adobe Creative Suite

HTML5 / CSS3

Django

Matlab

 

 

Functional

 

JIRA

Project management

Agile

Fraud Prevention

Public communication

Market analysis

Mandarin Chinese

skills

CONTACT

ME

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