Benjamin Chansky
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Work experience
Data Scientist

Conduct bid optimization projects, including the conception, architecture, and design of a new bidding system built for
identifying opportunistic products with underperforming advertisements. This project has driven incremental revenue of over
$500,000 and has since become widely adopted for multiple stores within the company.
· Lead the expansion and automation of a new revenue and profit estimation model, providing bidding system with accuracy
improvements of 74% for revenue and 86% for profit. Coordinate with engineers, marketing analysts, category managers, and
other data scientists to align on testing timelines, implementation methods, and potential business impact.
· Oversee the onboarding process, including the training of 4 newest team members. Hold sessions on Git best practices,
introduction to Airflow and Vertica. Lead code reviews for the team.


Data Scientist

Conduct bid optimization projects, including the conception, architecture, and design of a new bidding system built for
identifying opportunistic products with underperforming advertisements. This project has driven incremental revenue of over
$500,000 and has since become widely adopted for multiple stores within the company.
· Lead the expansion and automation of a new revenue and profit estimation model, providing bidding system with accuracy
improvements of 74% for revenue and 86% for profit. Coordinate with engineers, marketing analysts, category managers, and
other data scientists to align on testing timelines, implementation methods, and potential business impact.
· Oversee the onboarding process, including the training of 4 newest team members. Hold sessions on Git best practices,
introduction to Airflow and Vertica. Lead code reviews for the team.

Data Scientist

Conduct bid optimization projects, including the conception, architecture, and design of a new bidding system built for
identifying opportunistic products with underperforming advertisements. This project has driven incremental revenue of over
$500,000 and has since become widely adopted for multiple stores within the company.
· Lead the expansion and automation of a new revenue and profit estimation model, providing bidding system with accuracy
improvements of 74% for revenue and 86% for profit. Coordinate with engineers, marketing analysts, category managers, and
other data scientists to align on testing timelines, implementation methods, and potential business impact.
· Oversee the onboarding process, including the training of 4 newest team members. Hold sessions on Git best practices,
introduction to Airflow and Vertica. Lead code reviews for the team.

LEADERSHIP & ACTIVITIES Citizen Schools
Volunteer Teacher

Teach basic HTML, CSS, and Product Development to classes of middle school students from underprivileged schools.
· Lead design sessions of Wayfair's 10-week apprenticeship program by delegating the creation of lesson plans to product
managers, marketers, and other engineers.

LEADERSHIP & ACTIVITIES Citizen Schools
Volunteer Teacher

Teach basic HTML, CSS, and Product Development to classes of middle school students from underprivileged schools.
· Lead design sessions of Wayfair's 10-week apprenticeship program by delegating the creation of lesson plans to product
managers, marketers, and other engineers.

Wayfair
Software Engineer

Developed desktop and mobile web features, including a "Complete-the-Set" feature that achieved a 3.4% lift in average order
value through A/B testing.
· Launched a new swatch ordering UI that led to a 5% increase in swatches ordered per customer and contributed to a boost in
swatch revenue by 15% ($2.3 million for the quarter following the UI change).
· Ran a "Relative Size" imagery A/B test, leading to increased conversion rates for 4 of the highest revenue product classes.

Wayfair
Software Engineer

Developed desktop and mobile web features, including a "Complete-the-Set" feature that achieved a 3.4% lift in average order
value through A/B testing.
· Launched a new swatch ordering UI that led to a 5% increase in swatches ordered per customer and contributed to a boost in
swatch revenue by 15% ($2.3 million for the quarter following the UI change).
· Ran a "Relative Size" imagery A/B test, leading to increased conversion rates for 4 of the highest revenue product classes.

Wayfair
Software Engineer

Developed desktop and mobile web features, including a "Complete-the-Set" feature that achieved a 3.4% lift in average order
value through A/B testing.
· Launched a new swatch ordering UI that led to a 5% increase in swatches ordered per customer and contributed to a boost in
swatch revenue by 15% ($2.3 million for the quarter following the UI change).
· Ran a "Relative Size" imagery A/B test, leading to increased conversion rates for 4 of the highest revenue product classes.

Projects Beat the Streak

Completed data preprocessing for establishing feature sets on a compiled dataset containing 10 years of baseball statistics.
· Used the open source scikit-learn library to train various classifiers and experimented with different learning algorithms, including
Logistic Regression, Stochastic Gradient Descent and Random Forest classifiers.

Projects Beat the Streak

Completed data preprocessing for establishing feature sets on a compiled dataset containing 10 years of baseball statistics.
· Used the open source scikit-learn library to train various classifiers and experimented with different learning algorithms, including
Logistic Regression, Stochastic Gradient Descent and Random Forest classifiers.

Projects Beat the Streak

Completed data preprocessing for establishing feature sets on a compiled dataset containing 10 years of baseball statistics.
· Used the open source scikit-learn library to train various classifiers and experimented with different learning algorithms, including
Logistic Regression, Stochastic Gradient Descent and Random Forest classifiers.

Illini Hyperloop
Computing Team Member

Led the computing team of 4 computer scientists in a high-level design of the computing system for the university's entry in
SpaceX's Hyperloop competition.
· Prepared weekly presentations for the entire team and our 4 faculty advisors demonstrating progress and addressing concerns.

Illini Hyperloop
Computing Team Member

Led the computing team of 4 computer scientists in a high-level design of the computing system for the university's entry in
SpaceX's Hyperloop competition.
· Prepared weekly presentations for the entire team and our 4 faculty advisors demonstrating progress and addressing concerns.

Illini Hyperloop
Computing Team Member

Led the computing team of 4 computer scientists in a high-level design of the computing system for the university's entry in
SpaceX's Hyperloop competition.
· Prepared weekly presentations for the entire team and our 4 faculty advisors demonstrating progress and addressing concerns.

Wayfair
Software Engineering Intern

Developed new features for Wayfair's mobile website one of which increased customer use of Wayfair's call center and another
which boosted app downloads by 2,000 additional installs per week.
· Co-developed a mobile version of the careers page working with designers and product managers in an agile development cycle.

Wayfair
Software Engineering Intern

Developed new features for Wayfair's mobile website one of which increased customer use of Wayfair's call center and another
which boosted app downloads by 2,000 additional installs per week.
· Co-developed a mobile version of the careers page working with designers and product managers in an agile development cycle.

Wayfair
Software Engineering Intern

Developed new features for Wayfair's mobile website one of which increased customer use of Wayfair's call center and another
which boosted app downloads by 2,000 additional installs per week.
· Co-developed a mobile version of the careers page working with designers and product managers in an agile development cycle.

University of Illinois Urbana-Champaign Comedy Sketch Club
Lead Sketch Writer

Led team editing sessions and organized group read-through of sketches.
· Increased production of new material by introducing weekly writing challenges, leading to the number of active writers in the
group growing by 300% since.

University of Illinois Urbana-Champaign Comedy Sketch Club
Lead Sketch Writer

Led team editing sessions and organized group read-through of sketches.
· Increased production of new material by introducing weekly writing challenges, leading to the number of active writers in the
group growing by 300% since.

University of Illinois Urbana-Champaign Comedy Sketch Club
Lead Sketch Writer

Led team editing sessions and organized group read-through of sketches.
· Increased production of new material by introducing weekly writing challenges, leading to the number of active writers in the
group growing by 300% since.

Education
University Of Illinois
Bachelors, Computer Science

University Of Illinois
Bachelors, Computer Science
University Of Illinois
Bachelors, Computer Science
Skills
  • Editing
  • Page
  • Optimization
  • Marketing
  • Read
  • Agile
  • Development
  • Javascript
  • Php
  • Features
  • Profit
  • Advertising
  • Python
  • Java
  • Automation
  • Css
  • Progress
  • Html
  • Web Site Production
  • Conversion
  • Statistics
  • R, Python, Sql, Vertica, Airflow, Php, Javascript, React, Jquery, Html, Css, Java, and Matlab
  • Sql
  • Presentation Skills
  • Call Center
  • Matlab