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Mark Druffel

Education

University of Notre Dame

M.S in Business Analytics

Ohio University

Bachelors in Business Admin

Languages

Tools

Database / Big Data

Snowflake, Aurora, SQL, Spark, Databricks, Apache Arrow, neo4j, dbplyr, data.table

Data Visualization / Dashboard

ggplot2, plotnine, shiny, observable, d3.js, Plotly, Highcharts, Apache Superset, Tableau, PowerBI

Modeling

tidymodels, caret, keras, tidytext, Apache OpenNLP

Devops

Git, Github, AWS, Azure, Digital Ocean, Docker, Apache Airflow, Kedro, targets, Quarto, nbdev, Netlify

Design

InVision, Figma, Gimp, Scribis

Volunteer

Civic Software Fdn, Exec Producer

Delivered a web app that provided longitudinal analysis to the Oregon Department of Education.

Main

Mark Druffel Portland, OR

Data scientist with a decade of experience. I love to problem solve, build things, and use data visualization tell stories and build rich experiences.

Experience

Lead Data Scientist

84.51°

Remote

2022

Enable Kroger’s personalization and loyalty team to design and execute random controlled trials (RCT) to measure the success of targeted marketing campaigns.

  • Design campaign measurement dashboards and reports for marketing teams
  • Led the team’s data pipeline refactor project which improved velocity, code quality, and enabled new capabilities

Senior Data Analyst

DocStation

Remote

2021

Founding member and first analytics hire for a seed funded start-up.

  • Expanded the data warehouse by developing data models in the pipeline with SQL, pyspark, and Airflow
  • Designed and developed dashboards that were used by business operations using Apache Superset and R Shiny
  • Led analysis projects that improved task targeting, sales, and user retention

Data & Analytics Consultant

Propeller

Portland, OR

2017

Worked with clients to develop strategies and road maps and execute projects.

  • Created a feedback loop between a product team and their end-users by developing a text analysis and NLP pipeline, which automatically identified user pain points
  • Designed a prototype app that enabled an HR team to transition to a data-driven recruitment process, improving velocity and candidate quality
  • Developed and facilitated an analytics workshops
  • Developed internal analytics infrastructure to streamline Propeller’s operations including API wrappers, a data pipeline, and automated reporting

Business Intelligence Manager

Northern Trust, Hedge Fund Services

Chicago, IL

2013

Managed a global team that directly served business partners and end users.

  • Designed and developed an analytics pipeline that identified bottlenecks, forecasted server demand, etc. to measure and manage tech debt
  • Developed dashboards and reporting using Tableau and eGlue (homegrown)
  • Managed tech services on behalf of the business including access management, data transfer, and data quality assurance
  • Trained my team in Excel, SQL, Tableau, R, and Python

Senior Consultant

Plante Moran

Chicago, IL

2011

Managed IT audits and risk assessments for clients in various industries

Staff Auditor

Fifth Third Bank

Cincinnati, OH

2010

Executed financial audits, IT audits, and risk assessments