Jack Portman

Jack Portman

Ecommerce Strategy @ Quartile

Role
Sales Development Representative at Quartile
Location
New York, NY, US
LinkedIn followers
500 followers

About Jack Portman

I work with ecommerce brands and Amazon sellers who are investing in advertising but aren’t always sure how efficiently their budget is being used.Many teams I speak with are dealing with rising CPCs, inconsistent returns, or the challenge of scaling new products without increasing wasted spend.At Quartile, we help brands improve ad performance through a mix of AI-driven automation and hands-on Amazon expertise. On average, clients see over a 41% increase in ROAS.If you ever want to compare notes on your ad setup or see where there may be opportunities, I’m always happy to connect.

Experience

  1. Sales Development Representative

    Quartile

    Mar 2026 — Present · New York, NY, US

Education

  • University of Richmond

    Bachelor of Science, Business Administration

    2018 — 2022

  • Escuela Universitaria Real Madrid Universidad Europea

    Master's degree, Sports Marketing

  • Staples High School

    High School Diploma

    2014 — 2018

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Jack Portman — Sales Development Representative at Quartile in New York, NY, US | Unifers