Lawrence W. Gray | 503-764-8451 | LinkedIn | GitHub | Blog | Baltimore, MD


To work with a data science team in which I am able to use my software engineering and machine learning knowledge to produce quality products. I look for teams that value creativity and are inspired by what the future could be.


  • Languages and Tools: Python, R, git, postgresql
  • Packages: Pandas, Numpy, Flask, NLTK, scikit-learn, gensim
  • Natural Language Processing: Topic Modeling, Sentiment Analysis
  • Machine Learning(ML): Classical Methods(i.e. Clustering, Classification, Regression)
  • Life Sciences: Cellular and Molecular Physiology, Computational Structural Biology


District Data Labs, Research Fellow, Washington, DC

March 2018-Present

  • Contributing and maintaing the open-source ML visualization library, YellowBrick
  • Creating blogs about utilizing ML to solve Real-World problems.

Freelance Data Science Consultant, Baltimore, MD

May 2016-Present

  • Building ML pipelines with Python (for example):
    • Allowed organizations to rapidly respond to changes in regulatory space by predicting the effects of new regulation
    • Optimized inventory efficiency by predicting retail product movement.

National Center for Biotechnology Information, Postdoctoral Fellow, Bethesda, MD

September 2013-Present

  • Developing 3D transformation methods to compare biological structures.
  • Studying the effect of antibiotics on the structure of ribosomes.

Johns Hopkins University, School of Medicine, Predoctoral Fellow, Baltimore, MD

April 2009-May 2013

  • Discovered why Wilson's disease patients have increased copper in their urine. This discovery could be used for early diagnosis and treatment of the disease.
  • Awarded a prestigious 3-year $150,000 NIH Predoctoral fellowship.

BusyGrad, Co-founder, Baltimore, MD

November 2011-July 2013

  • Responsible for the business development of a web app that allowed scientists to share supplies and chemicals.
  • Secured a $25,000 seed investment, and led the company to getting accepted into a Baltimore Business Incubator, and helped grow the web app to over 3000 users.

GoodStuff, Owner, Baltimore MD

July 2013-Present

  • Developing software that finds products that can be resold online for a profit.
  • Generated $250,000 in sales in our first year.

Open-Source Contributions (core and minor)

Python Projects

  • Nedcow: Ecommerce tool that finds online products that can be resold for a profit.
  • Calzone: ML tool that predicts likes/upvotes based on the title of an article/post.
  • Salesrank: Ecommerce ML tool that predicts how fast/slow a product will sell.
  • Suicide prevention bot: Uses sentiment analysis to predict suicidal risk on Reddit. Microsoft has provided free access to ML tools for this project.



Ph.D, Cellular and Molecular Physiology, Johns Hopkins University, School of Medicine, Baltimore, MD

April 2009-May 2013

B.S, Biology and Chemistry, California State University, Fullerton, CA

August 2001-May 2005

Coursework (In Progress)

  • Data Science Specialization: 10 courses, Certification by Johns Hopkins University
  • Machine Learning Specialization: 4 courses, Certification by University of Washington