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Justin Brewer

Justin Brewer

Performance Marketing Leader (SEM & Mobile App Install) | iROAS & Attribution Engineering | 10+ Years

9 yrs experience · Raleigh, NC · <10 hrs/week

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About

Performance marketing leader with 10+ years scaling paid search, mobile app install, and full-funnel programs at high-growth tech companies. Proven track record managing $38.7M+ in annual budgets, consistently exceeding iROAS and volume targets across Google Ads, Microsoft Ads, and Apple Search Ads. Strong in data-driven optimization, attribution engineering, and cross-functional partnership with Analytics and Engineering.

Skills

A/B TestingA/B testingAd CopyAnalyticsAutomationCross-functional collaborationGo-to-market StrategyGoogle AdsGoogle AnalyticsGoogle Tag ManagerIntegrationKey Performance IndicatorsMarket ResearchMarket researchMicrosoft ExcelOptimizationPostgreSQLPowerBISearch engine marketing (SEM)SegmentUsability Testing

Experience

  • Growth Marketing Manager, SEM & MAI · THUMBTACK2025

    • Manage Thumbtack's SEM program ($38.7M annual spend) across Google and Microsoft Ads — 1.25M+ requests YTD, 11.5% above target at iROAS 1.55 vs. 1.52. • Scaled MAI budget 104% in 6 months ($168K → $343K/mo) across Google UAC and Apple Search Ads; exceeded request targets by 32% at iROAS 1.99 vs. 1.90 target on $1.3M annual spend. • Drove $42M+ in gross profit contribution across both programs; maintained MAI cost per request at $26.45 — 22% more efficient than SEM. • Own experimentation roadmap across bid strategies, keyword expansion, and ad copy — continuously improving program efficiency across Google, Microsoft, and Apple platforms. • Built cross-platform attribution pipelines (Branch vs. Google Ads reconciliation, Supermetrics) enabling real-time pacing and iROAS tracking for leadership and cross-functional partners.

  • Senior Paid Media Analyst, Contract · LEAP GROUP (AMP)2024

    • Manage paid search and media campaigns across Google Ads and Microsoft Ads for a multi-client portfolio spanning diverse verticals, with ongoing bid, keyword, and audience optimization. • Deliver senior-level performance analysis and strategic recommendations in weekly team and monthly client calls — covering ROAS, CPA, revenue tracking, and go-forward media strategy. • Lead deployment of keyword lists, audience targets, and first-party data integrations to drive efficiency and scale across the full customer journey.

  • Sr. Performance Marketer · WECALL MEDIA2024 – 2025

    • Managed inbound call, click, and lead generation campaigns for healthcare, Medicare, and home service verticals across paid search, social, and programmatic at up to $15K/day. • Applied data-driven optimization to budgets, targeting, and channel mix — maximizing ROI and sustaining high conversion quality across all traffic sources. • Collaborated cross-functionally on testing design, market analysis, and campaign enhancement strategies.

  • Product Manager · DENTSU CREATIVE2023 – 2024

    • Led cross-functional teams across Strategy, Engineering, Design, and Analytics through full product lifecycle — definition, development, testing, and deployment. • Managed product roadmap, market research, user testing, and go-to-market strategy for new product launch within the Innovation Strategy & Architecture team.

  • Sr. Product & Media Analyst · EASYHEALTH2022 – 2023

    • Drove nearly $10M in revenue through product enhancement and media strategies; contributed to a new product line generating $100K+ in incremental monthly revenue. • Developed marketing strategies delivering a 20% value return with increased user adoption; used data insights to inform product roadmap prioritization.

  • Associate Director, Digital Marketing → Senior Digital Marketing Analyst · TRANZACT2017 – 2022

    • Rose from Senior Analyst to Associate Director, owning paid media strategy across Google Ads, Microsoft Advertising, Meta, display, native, and programmatic on a $30M annual budget. • Managed $750K+/month in ad spend; built KPI frameworks and attribution reporting to continuously improve buying efficiency, ROI, and gross operating profit. • Architected cross-channel reporting infrastructure to ensure data integrity and performance transparency for business leadership.

Education

  • Saint Leo UniversityMaster of Business Administration
  • Marshall UniversityMaster of Arts, Psychology, Research Methods & Data Analysis

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