Lawrence Zhou, Developer in New York, NY, United States

Lawrence Zhou

Risk Models Developer

New York, NY, United States
Toptal Member Since
August 14, 2018

Lawrence is a software developer and quantitative analyst with over 12 years of experience in software development and quantitative modeling. He's worked at Citigroup, Traxis Partners, as well as co-founding a Y-Combinator funded startup. Lawrence prefers projects that use both his financial and programming backgrounds, but he also enjoys working with and analyzing data—either in analysis, visualization, or machine learning.

Lawrence is available for hire
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Portfolio |
Amazon Web Services (AWS), JavaScript, MySQL, Python, R, PHP
Asian Century Quest Capital
Visual Basic for Applications (VBA), Microsoft PowerPoint, Microsoft Excel
Traxis Partners
RiskMetrics, Microsoft Excel, MySQL, Bloomberg...


New York, NY, United States



Preferred Environment

Vim Text Editor, Git, Windows, Linux

The most amazing...

...thing I've coded was a fast autocomplete search for addresses/general locations that optimized depending on relevancy & user preference across multiple factors.

Work Experience

2009 - PRESENT

Data Scientist |
  • Created a real-estate platform that helps renters and home buyers identify the best possible homes.
  • Drove the software development/architecture, product design, analytics, data management, and scaling.
  • Led all aspects of site development.
  • Published numerous data-driven and quantitative research articles on renting/housing (featured in major media outlets such as the NY Times, CNBC, USA Today, and so on).
Technologies: Amazon Web Services (AWS), JavaScript, MySQL, Python, R, PHP
2012 - 2012

Consultant (Macroeconomic Research)

Asian Century Quest Capital
  • Developed macroeconomic presentations on topics and themes across Asian markets with a focus on China.
Technologies: Visual Basic for Applications (VBA), Microsoft PowerPoint, Microsoft Excel
2007 - 2009

Trader | Research Analyst

Traxis Partners
  • Traded the emerging markets portfolio including FX, local rates, and credit in LATAM, EMEA, and Asia.
  • Built internal systems for measuring fixed-income exposures, calculating real-time P&L, and generating risk/performance attribution reports.
  • Coordinated with the fund administration/external auditors.
  • Provided model-based valuations for liquid instruments.
  • Implemented model validation of RiskMetrics for investor reporting.
Technologies: RiskMetrics, Microsoft Excel, MySQL, Bloomberg, Visual Basic for Applications (VBA), Perl
2005 - 2007

Quantitative Researcher and Trader

Citigroup Global Markets
  • Structured and analyzed trade ideas in single-name credits, synthetic CDOs, emerging markets, and FX.
  • Contributed to the weekly Bond Market Roundup publication and other in-depth research pieces.
  • Developed analytics for scenario analyses on client commercial mortgage-backed securities (CMBS) portfolios.
Technologies: MySQL, Visual Basic for Applications (VBA), Microsoft Excel, Perl

I built this site with PHP, MySQL, and Solr.



PHP, JavaScript, R, Excel VBA, Python, Perl, Visual Basic for Applications (VBA)


jQuery, Google Maps, LeafletJS


Solr, Git, Vim Text Editor, Microsoft Excel, Bloomberg, Microsoft PowerPoint, RiskMetrics, Apache Solr, Amazon Simple Email Service (SES)


Linux, Windows, Amazon EC2, AWS Lambda, Amazon Web Services (AWS)


MySQL, Amazon S3 (AWS S3)


Quantitative Modeling, Amazon Route 53, Linear Regression, Quantitative Finance, Risk Models, Risk Reporting, Fixed Income, Options Trading


Laravel, CodeIgniter 3


2014 - 2016

Master's Degree in Finance (Econometrics, Operations Research and Financial Engineering, Statistics)

Princeton University - Princeton, NJ, USA

2001 - 2005

Bachelor of Science Degree in Electrical Engineering with a minor in mathematics

University of Pennsylvania, School of Engineering and Applied Science - Philadelphia, PA, USA

2001 - 2005

Bachelor of Science Degree in Economics with a concentration in finance

University of Pennsylvania, Wharton School - Philadelphia, PA, USA