Growth Marketing Manager- US & Americas

Job Summary: We are looking for a Growth Marketing Manager, North America to lead paid acquisition and performance media growth across key North American markets. This role will be based in the United States and will focus on scaling efficient customer acquisition, improving ROAS, optimizing performance creative, and strengthening measurement across N. American markets. Owns the full-funnel paid media process, combining high-level strategy with hands-on execution—including campaign setup, ad trafficking, and daily optimization across Google Ads, Meta Ads Manager, etc. The ideal candidate is a hands-on performance marketer with deep expertise in paid media platforms, regional media ecosystems, creative testing, campaign optimization, and incrementality-based measurement. They should be highly analytical, comfortable managing large budgets, and experienced in adapting performance strategies across diverse markets. Job Expectations: Manage paid media campaigns across global and region-specific performance platforms, including Google Ads, Meta Ads, TikTok Ads, Apple Search Ads, and other relevant regional paid media platforms. Optimize campaigns against business goals including new customer acquisition, revenue, ROAS, CAC, LTV, contribution margin, conversion rate, and payback period. Develop budget allocation strategies across markets, channels, campaigns, audiences, and funnel stages based on performance, incrementality, and growth potential. Lead performance creative testing across paid social, search, display, app, and regional media platforms. Partner with creative teams to develop, test, and iterate performance assets, including static ads, short-form video, UGC-style creative, localized messaging, promotional creative, landing page concepts, and app install assets. Build and manage structured testing roadmaps for audiences, bidding strategies, campaign structures, creative concepts, offers, landing pages, and platform-specific optimization tactics. Analyze campaign performance by market, channel, audience, creative, product category, device, and customer segment to identify opportunities for scale and efficiency. Lead measurement efforts across attribution, incrementality, media mix insights, geo testing, holdout testing, lift studies, cohort analysis, and LTV-based optimization. Work with analytics and data science partners to improve performance reporting, attribution accuracy, incrementality measurement, and decision-making frameworks. Evaluate platform-reported performance against internal measurement, incrementality, and business-level outcomes. Manage relationships with media platforms, regional paid media partners, and performance agencies to drive improved campaign performance and access to beta opportunities. Monitor performance trends, auction dynamics, competitive intensity, CPM/CPC/CVR shifts, and platform changes across markets. Communicate performance results, insights, risks, and recommendations to leadership and cross-functional stakeholders. The duties and responsibilities described above may provide only a partial description of this position. This is not an exhaustive list of all aspects of the job.  Other duties and responsibilities not outlined in this document may be added as necessary or desirable, with or without notice. Knowledge, Skills and Abilities: Required: Proven experience in performance marketing, growth marketing, paid media, or digital acquisition, preferably in eCommerce, marketplace, retail, consumer technology, subscription, beauty, health and wellness, or mobile app businesses. Hands-on experience managing paid media campaigns across multiple markets. Deep platform expertise across major global paid media channels, including Google Ads, Meta Ads, TikTok Ads, and Apple Search Ads. Strong understanding of paid search, paid social, app acquisition, display, retargeting, shopping campaigns, feed-based advertising, and marketplace media. Proven ability to manage and optimize meaningful paid media budgets across multiple markets and channels. Strong analytical skills with experience measuring CAC, ROAS, LTV, payback period, conversion rate, retention, contribution margin, and cohort performance. Experience with incrementality measurement, including geo tests, conversion lift studies, holdout tests, matched market tests, or media mix modeling inputs. Strong understanding of attribution limitations, platform-reported bias, privacy changes, signal loss, and measurement tradeoffs. Experience building creative testing frameworks and translating performance data into actionable creative recommendations. Ability to assess creative performance by hook, message, offer, format, audience, localization, and funnel stage. Proven experience as a hands-on performance marketer with deep expertise in paid media platforms, regional media ecosystems, creative testing, campaign optimization, and incrementality-based measurement Highly analytical, comfortable managing large budgets, and experienced in adapting performance strategies across diverse markets. Professional fluency or native-level fluency in English required. Professional fluency or native-level fluency in Spanish or Portuguese preferred. Equipment Knowledge: Experience with Microsoft Office Suite (Word, Excel, PowerPoint) Experience with Google Business Suite (Gmail, Drive, Docs, Sheets, Forms) preferred Experience with analytics and BI tools such as Looker, Tableau, Google Analytics, Amplitude, or similar platforms. Experience with ecommerce marketing operations platforms & tools. Experience Requirements: Generally requires seven (7) years of experience in performance marketing, growth marketing, paid media, or digital acquisition, preferably in eCommerce, marketplace, retail, consumer technology, subscription, beauty, health and wellness, or mobile app businesses. Education Requirements: Bachelor’s Degree in Business or related field preferred #LI-LR1 The anticipated pay scale for this position can be found below, however the pay range applicable to you may vary by geographic location based on where the job is located or where you work.  The final pay offered to a successful candidate will be dependent on several factors that may include but are not limited to the type and years of experience within the job, the type of years and experience within the industry, education, etc.  iHerb, LLC is a multi-state employer and this pay scale may not reflect positions that work in other states or locations. Employees (and their families) that meet eligibility criteria as outlined in applicable plan documents are eligible to participate in our medical, dental, vision, and basic life insurance programs and may enroll in our company’s 401(k) plan. Employees will also be eligible for Time Off and Paid Sick Leave pursuant to the company’s policies. Employees will enjoy paid holidays throughout the calendar year.  Eligibility requirements for these benefits will be controlled by applicable plan documents. Hired applicant may be awarded Restrict Stock Units and receive annual bonuses pursuant to eligibility and performance criteria defined in the respective plan documents and policies. For more information on iHerb benefits, visit us at iHerbBenefits.com. Anticipated Pay Scale: $77,234—$115,000 USD Staffing Agency Submission Notice iHerb does not accept unsolicited 3rd party ("Agency") candidates. If you are an Agency, please send any requests to be considered as a supplier in our Vendor Management System to staffingvendors@iherb.com. Do not contact iHerb employees directly. If requested to work on a role, any Agency candidates would be presented through the internal recruiting organization. About iHerb iHerb is on a mission to make health and wellness accessible to all. We offer Earth’s best-curated selection of health and wellness products, at the best possible value, delivered with the most convenient experience. We’re the world’s largest eCommerce platform dedicated to vitamins, minerals, and supplements, and other health and wellness products. For more than 25 years, we’ve been making it simple for people all over the world to purchase the highest quality products. From supplements to skincare to grocery items, we ship over 50,000 products, from over 1,800 brands direct to our customers in 180+ countries. Our vision is to become the #1 destination for health and wellness across the world. With a passion for wellness and a mind for innovative solutions, iHerb team members share a vision for a healthier world that drives them each day. Our 5 Shared Values unite our global team: Focus on the Customer · Empower Our People · Be Entrepreneurial & Pivot Quickly · Embrace Diversity & Inclusion · Strive for Simplicity iHerb Benefits At iHerb, we are dedicated to offering programs designed to help our employees and their families stay healthy, live well, and plan for their financial future. Built on a strong foundation, our programs provide options and upgrades with flexibility, protection, and security in mind. For the comprehensive benefits list, visit www.iHerbBenefits.com. For our international team members, you may be eligible for benefits depending on the country where you are employed. The Talent Acquisition Partner/local HR representative will go over the benefits you are eligible for. iHerb is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. iHerb provides equal employment opportunities to all applicants for employment and prohibits discrimination and harassment.