• Researched, designed, and implemented an API rate-limiter using Redis that generates usage statistics for each minute.

• Wrote Java webservices using a Jackson based REST API and a Postgres database.

• Created an error-code management system for the webservices.

• Implemented up-to-date best-practice hashing and salting for user passwords.

• Built a multi-threaded Java SFTP client that pings a mailbox every hour, downloads, unzips, parses files and then stores

their data in a database.

• Wrote JSP webpages using bootstrap for design and jQuery to make webservice calls from the webpage

• Researched different recommendation engine techniques, analyzed the relevant data, and customer input to determine which

type to use.

• Created an English to Hebrew reverse-transliterater which converts Hebrew words spelled in English back into Hebrew.

• Designed and implemented a tag-based item to item recommendation system for YUTorah.org that supports over 200k items

for over 44k users per month.

• Wrote a webview android app for the main website as well as an associated website.