Growth Marketing Specialist (N. America)

iHerb is a global e-commerce company focused on making healthy and balanced living accessible through an innovative online shopping experience. The Growth Marketing Specialist, North America will execute, optimize, and manage paid media campaigns across key markets, while coordinating creative workflows, monitoring performance, maintaining reporting accuracy, and supporting measurement and testing initiatives.

Responsibilities:

• Execute and support paid media campaigns across assigned markets, including campaign setup, QA, launch, monitoring, pacing, optimization, and reporting
• Manage day-to-day campaign operations across global performance platforms, including Google Ads, Meta Ads, TikTok Ads, Apple Search Ads, and other relevant regional paid media platforms
• Implement campaign structures, audience targeting, bidding strategies, budgets, creative rotations, tracking parameters, and platform settings based on approved growth plans
• Monitor campaign performance daily and identify issues related to spend pacing, delivery, tracking, creative fatigue, audience performance, conversion rates, CAC, ROAS, and other core KPIs
• Support optimization of paid media campaigns against goals such as new customer acquisition, revenue, ROAS, CAC, LTV, payback period, contribution margin, and conversion rate
• Assist with budget pacing and reallocation recommendations across markets, platforms, campaigns, ad groups, audiences, and creative assets
• Support structured testing roadmaps across creative, audiences, bids, landing pages, campaign structures, offers, localization, and platform features
• Coordinate performance creative workflows, including briefing, asset trafficking, localization, naming conventions, version control, approvals, uploads, and post-launch performance tracking
• Partner with creative, localization, and regional stakeholders to ensure ads are accurate, culturally relevant, platform-compliant, and aligned with performance testing needs
• Analyze performance creative by format, hook, message, offer, language, market, audience, placement, and funnel stage
• Maintain campaign documentation, testing trackers, launch calendars, QA checklists, naming conventions, UTM standards, and reporting processes
• Support measurement initiatives including incrementality tests, geo tests, platform lift studies, holdout tests, attribution analysis, and cohort reporting
• Prepare recurring performance reports, insights summaries, test readouts, and campaign performance updates for managers and cross-functional partners
• QA tracking, attribution, pixels, conversion events, product feeds, landing URLs, UTMs, and campaign taxonomy to ensure reporting accuracy
• Work with analytics, data science, and measurement partners to validate campaign data and troubleshoot reporting discrepancies
• Support agency, platform partner, and vendor coordination, including campaign requests, asset delivery, performance follow-ups, billing inputs, and meeting preparation
• Monitor E platform updates, regional media trends, auction dynamics, competitive shifts, and performance benchmarks
• Identify opportunities to improve operational efficiency, campaign QA, reporting quality, creative testing processes, and execution speed

Requirements:

• Hands-on experience executing or supporting paid media campaigns across platforms such as Google Ads, Meta Ads, TikTok Ads, Apple Search Ads, or similar performance channels
• Possess a passion for campaign operations, performance analysis, creative testing, and process improvement
• Strong campaign operations skills, including campaign setup, trafficking, QA, budget pacing, naming conventions, tracking, and performance reporting
• Working knowledge of paid search, paid social, app acquisition, display, retargeting, shopping campaigns, catalog ads, and feed-based advertising
• Ability to analyze campaign performance and identify practical optimization opportunities
• Familiarity with key performance metrics including CAC, ROAS, LTV, conversion rate, CTR, CPC, CPM, CVR, payback period, retention, and contribution margin
• Experience supporting creative testing and translating performance results into clear creative learnings
• Strong attention to detail and ability to manage multiple campaigns, markets, deadlines, and stakeholders at once
• Comfortable working with spreadsheets, dashboards, reporting tools, and campaign management platforms
• Organized, analytical, detail-oriented, and comfortable working across multiple markets, channels, campaigns, and stakeholders
• Professional fluency or native-level fluency in English required
• Experience with Microsoft Office Suite (Word, Excel, PowerPoint)
• Experience with analytics and BI tools such as Looker, Tableau, Google Analytics, Amplitude, or similar platforms
• Experience with ecommerce marketing operations platforms & tools
• Generally requires 2 - 5 years of experience in performance marketing, growth marketing, paid media, digital marketing, or marketing operations
• Experience with E-specific platforms, or similar regional paid media platforms strongly preferred
• Exposure to incrementality measurement, platform lift studies, holdout testing, geo testing, attribution analysis, or media mix measurement preferred
• Professional fluency or native-level fluency in Spanish or Portuguese preferred
• Experience with Google Business Suite (Gmail, Drive, Docs, Sheets, Forms) preferred
• Bachelor's Degree in Business or related field preferred