Growth Marketing Specialist; N. America)

Growth Marketing Specialist (N. America)

Irvine, California, United States of America Corporate R106970 Posted 17/08/2026

At iHerb, we believe that living a healthy and balanced life should be easy and accessible to everyone. As a team member, we’ll empower you to live this promise each day as you make a truly global impact in your career. We constantly strive for innovation, while transforming and improving the online shopping experience for our customers. We believe that individually we are incredible, but when we come together, our growth is infinite.

In an industry that is constantly evolving, we are on a mission to make an impact on the global market, and the individual and collaborative efforts of our people are paramount to helping us succeed. Whether you work in one of our logistics centers, technology hubs, corporate offices or even from home, your role at iHerb will take you beyond what’s expected, turning challenge into change.

If you're ready for it, we want you to join our team.

** We are looking for someone with a fluency in Spanish **

We are looking for a Growth Marketing Specialist, North America to support the execution, optimization, and operational management of paid media campaigns across key markets.

The Growth Marketing Specialist will help implement campaign strategies, monitor performance, coordinate creative and localization workflows, maintain reporting accuracy, and ensure campaigns are launched and optimized efficiently across assigned performance media platforms.

• 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, Tik Tok 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…