jim Rothstein

R Coder/Data Analysis

jimrothstein@gmail.com
(831) 824-4304 (messages)

Github: https://github.com/jimrothstein
Linkedin: https://www.linkedin.com/in/jimrothstein https://jimrothstein.github.io/ ——

Seeking position to use R coding skills.

Technical

• R, 4+ years package development, httr2, tidyverse/wrangle, data.table, shiny, quarto (some SCSS), plots (base + ggplot2) roughly to level of Advanced R book.
• SQL: 2+ years, joins, data.table, dplyr; mySQL
• RStudio, Neovim/Nvim-R as IDE
• Exposure to regression models, KNN, Random Forest, Logical Regression
• R Shiny, reactive programming, dashboard
• Quarto, Rmarkdown, latex, pandoc, Katex, knitr, some SCSS, CSS
• Git/Github: 3+ years, PR, merging
• Zsh Shell: 3+ years scripts, regex, configuration
• Lua - used to configure neovim, plugins including Nvim-R
• REST APIs, such as Google APIs, httr packages, JSON. (Gave talk)
• Linux (Debian, LinuxMint, Ubuntu): 4+ years, shell scripts, cron jobs, Rscripts

Recent Projects & Skills

• (active) Did preliminary analysis Drug Benefit Denials (public data from Center for Medicare and Medicaid (CMS)). Built initial Shiny app.

• (active) Used youtube API and httr and httr2 to add/modify youtube.com playlists. Used OAUTH tokens scope.

• Used rrapply , tidyr to unravel deeply nested firefox bookmarks in tree/json format to table.

• (active) Contribute to various Open Source projects (Github)

RELATED WORK HISTORY:

2014 - present R-Coders Self-employed R programmer.

1996-2014 Self-employed contractor, including

• Webmaster, community expatriate website in China, 2005 – 2008 Setup, maintain, promote expat community-based website in Dalian, China. Selected Joomla, hosting company, hired and trained student volunteers.

• Capital IT Group, Dalian, China 2004- Mentor Chinese software engineers, light project management, pre and post sales.

• Center for Electronic Art, San Francisco, 2002 Taught Java, mySQL, jsp classes. Also supervised graduate student modeling shipping/ ordering/ inventory system.

• Teaching (1998-2012) Taught classes java, math, internet, statistics in China and California community college in US. Certified to teach math in at California community college.

Webmaster, Saratoga Systems, Campbell, CA (1996-1998) Maintain NT and IIS server. Various internet projects.

Web Database Development, Microsoft, Redmond, WA (1996) Web database applications using Asp, MS SQL; contractor.

Contract Programming Assignments: Chicago, IL (1986-1996) Designed and developed variety of business database applications (Paradox, Delphi, Access) For example

• Developed relational database model for insurance company to track debt and assets of its multi-billion dollar joint ventures/commercial properties.
  
• Developed order tracking system (paradox).
  
• Contributed to bank risk management tool (ms access)

Education

BS MIT, physics

Jim Rothstein – jimrothstein@gmail.com – (831) 824-4304