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Sophia Heejeong Seo

Director-level Programmatic Media Strategist specializing in global omnichannel campaigns

KinessoUCLALos Angeles, CA6 Years ExperienceDirector Level

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About

Programmatic media specialist with deep hands-on experience running high-budget AWS/Amazon campaigns, including a $4MM side-by-side DSP bakeoff (DV360, The Trade Desk, Amazon DSP) focused on awareness and cost efficiency. Strong in CTV/OLV optimization and measurement, leveraging brand lift and attention studies, and known for disciplined testing frameworks and practical troubleshooting to restore performance.

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Key Strengths

  • Owned and executed a $4MM AWS programmatic campaign with rigorous 3-DSP side-by-side testing (DV360 vs TTD vs Amazon DSP)
  • Designed controlled test frameworks with clear hypotheses, guardrails, and control/test line items (budgets, pacing, frequency, flighting)
  • Strong video/CTV performance optimization (88% overall VCR; 98% VCR on CTV) at efficient CPM ($11.50)
  • Measurement-driven planning using brand lift studies and attention metrics (Dynata, Attest, Adelaide)
  • Platform nuance and troubleshooting expertise (creative rejections, PMP availability, match rates, targeting limitations) with documented client-facing caveats
  • Performance recovery playbook: diagnosed low CTR via DSP/DCM reporting, publisher troubleshooting, blocklists, frequency/pacing changes, and budget shifts (0.03% to 0.08% CTR)

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Experience

Associate Director, Programmatic | AmazonKINESSO · Jul 2024 – Present
Manager, Programmatic | AmazonOMD USA · May 2022 – Jun 2024
Associate Manager, International Media Planning | AppleOMD USA · Jan 2022 – May 2022
Senior Associate, International Media Planning | AppleOMD USA · Jan 2021 – Dec 2021
Associate, International Media Planning | AppleOMD USA · Aug 2019 – Dec 2020

Education

UCLAbachelor, Anthropology (2019)

Awards

  • Dean’s Honors List - University of California, Los Angeles
  • Apple 2019 Cannes Lions Creative Marketer of the Year (campaign team contribution)

Skills

Digital MarketingGo-to-Market StrategyCampaign ManagementData AnalysisBudget ManagementForecastingLead GenerationStakeholder ManagementCross-Functional CollaborationTeam LeadershipMentoringRecruitingTrainingProject ManagementVendor Management

Languages

English

Certifications

The Trade Desk CertificationGoogle DV360 CertificationViant/Adelphic CertificationAmazon DSP CertificationDoubleVerify Certification

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MarketingMarketing in Los Angeles MetroDigital MarketingGo-to-Market StrategyCampaign ManagementData Analysis

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Connect with Sophia

Sophia already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

Recommended

Already have an account?

Hire with Reval

Find your next great hire

Our AI agents source, screen, and vet candidates for your open roles. Get qualified candidates within 48 hours.

$250one-time kickoff
10%on successful hire
Post a Role90-day money-back guarantee
Sophia Heejeong SeoDirector-level Programmatic Media Strategist specializing in global omnichannel campaigns