Julien Pierret

About Julien Pierret

Proven experience working with numerous programming language and tools such as: Matlab, R, SAS, Java, C#, C/C++, MySql/MariaDB, SqlServer, SSRS, Oracle, Hadoop, Spark, HIVE, Pig, Sqoop, VB, Angular, Python, Terraform, Docker, Helm Charts, bash scripting, etc. Have a solid background in both Unix/Linux and Windows environments. Experience implementing and deploying statistical/machine learning models for production use.

Experience

1. Senior Software Engineer - Machine Learning

   Unit21

   Dec 2021 — Present · San Diego, CA, US

   Disposition Predictions: Unit21 customers add labels such as fraud or money laundering to alerts they generate within the Unit21 system. Every customer is different with unique \"custom data\" that they use. Automated ML model generation to automatically generate predictive features because of every customer\'s unique data requirements. Then automated feature selection, model generation/selection as there are too many customers to do this by hand. The models stack the deck to help customer\'s identify which alerts are most likely to lead to money laundering and/or fraud- Ran and led numerous ML prototypes and research experiments that ended up spinning off into their own products within Unit21. Products such as- Using an LLM, answering user generated questions about a dataset- Using an LLM, processing user generated tasks to be done on a particular dataset with an included image. ie:\"Does the amount written on the check match what\'s in the metadata\". Also included prototypes of receiving results from external APIs- Researched the viability of having a \"consortium\" that customers could belong to and share information about bad actors amongst themselves. This also led to many new features used in our models- etc- Converted the modeling codebase from processing in Snowflake to PySpark (DataBricks)

Education

• Claremont Graduate University

  Doctor of Philosophy (Ph.D.), Computational Statistics

  2011 — 2018

• San Diego State University

  MS Statistics

  2010 — 2014

• San Diego Mesa College

  Associate's Degree, Business Administration and Management, General

• San Diego State University

  Bachelor of Applied Science (BASc), Statistics

  2005 — 2008

• San Diego State University

  Bachelor of Arts (BA), Mathematics

  2005 — 2008

Skills

• R
• Xenserver
• Bayesian Networks
• Postgresql
• Logistic Regression
• Bash Scripting
• C#
• Unix
• Apache Spark
• Oracle
• Data Mining
• Sas
• Mysql
• Databases
• Ssrs
• Hadoop
• Php
• Matlab
• Microsoft Sql Server
• Sqoop
• Javascript
• Java
• Sql
• Visio
• Amazon Web Services (Aws)
• Linux
• Apache Pig
• Bash
• Statistics