Open to opportunities

Julie Sampson Lewek

@juliesampsonlewek

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Paid media and growth marketing leader directing client services, paid media, and revenue growth.

United States

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What I'm looking for

I’m looking to lead client services and paid media/growth marketing initiatives that tie media performance to C-suite revenue goals, improve retention, and use analytics and AI-enabled workflows to speed planning and reporting in regulated environments.

I direct client services, paid media, and growth marketing for Assembly Global, working across Elevance Health and Thomas James Homes. I’ve secured up to $2.5M in incremental account growth, driven lead volume up to 25% while reducing cost-per-lead by 20%, and scaled a cross-functional marketing delivery team from 6 to 10.

Earlier, I led $10M+ in annual paid media investment for Fannie Mae at Mediassociates, improving CPC efficiency by up to 35% and turning media data into conversion forecasting and executive insights. Before that, at Zenith Optimedia, I led paid media and creative strategy for TUMS and expanded campaigns across channels while maintaining health, pharma, and national data privacy compliance.

Experience

Work history, roles, and key accomplishments

Director, Client Services, Paid Media & Growth Marketing

Assembly Global

Jul 2023 - Jan 2026 (2 years 6 months)

Secured up to $2.5M in incremental account growth and drove 25% growth in quarterly lead volume while reducing CPL by 20%. Scaled a cross-functional team from 6 to 10 professionals.

Paid Media Growth Marketing Client Services Strategic Planning Team Leadership Salesforce A B Testing

Associate Media Director

Mediassociates

Mar 2021 - Jul 2023 (2 years 4 months)

Led a team of 5 and managed $10M+ in annual paid media investment for Fannie Mae, improving CPC efficiency by up to 35%. Launched integrated campaigns across paid media, influencer, and DOOH.

Paid Media Media Planning Google Ads Programmatic Influencer Marketing Campaign Management

Associate Media Director

Zenith Optimedia

Mar 2019 - Mar 2021 (2 years)

Led paid media and creative strategy for a Super Bowl activation for TUMS, driving a 70% spike in engagement. Launched first Spanish-language influencer campaign with Telemundo.

Paid Media Creative Strategy Influencer Marketing Google Ads Google Analytics Tableau CRM Salesforce LiveRamp

Planning Media Supervisor

Essence Global

Mar 2016 - Mar 2019 (3 years)

Managed nine-figure marketing investments for Google, doubling B2B SaaS campaign performance YoY across multiple regions. Partnered with creative agencies on brand lift studies achieving 10% absolute lift.

Media Planning B2B Marketing Google Ads Campaign Management Brand Lift Studies