Growth Marketing Manager (APAC)

iHerb Inc.; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Job summary

iHerb is seeking a Growth Marketing Manager, APAC to drive paid media growth across key Asia-Pacific markets. The role is based in the United States and focuses on scalable customer acquisition, improving ROAS, and optimizing performance measurement and creative testing.

You will own full-funnel paid media, managing campaigns across Google Ads, Meta Ads Manager, TikTok Ads, and regional platforms, while collaborating with analytics and creative teams.

Qualifications

• Proven experience in performance marketing, growth marketing, paid media, or digital acquisition.
• Deep platform expertise across major global paid media channels (Google Ads, Meta Ads, TikTok Ads, Apple Search Ads).
• Experience with APAC performance platforms (LINE, Naver, Kakao, Yahoo Japan, Rakuten).
• Strong understanding of paid search, paid social, app acquisition, display, retargeting and marketplace media.
• Experience managing large paid media budgets across multiple markets and channels.
• Strong analytical skills: CAC, ROAS, LTV, payback, conversion rate, cohort performance.

Responsibilities

• Manage paid media campaigns across global and APAC-specific platforms.
• Optimize campaigns against new customer acquisition, revenue, ROAS, CAC, LTV, and payback period.
• Develop budget allocation strategies across markets, channels, campaigns, audiences, and funnel stages.
• Lead performance creative testing across paid social, search, display, app, and regional media platforms.
• Build and manage testing roadmaps for audiences, bidding, campaign structures, and creatives.
• Analyze campaign performance by market, channel, audience, product category, device, and customer segment.

Job description

Tokyo, Tokyo, Japan Corporate R106984 Posted 16/07/2026

For A Better You

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. Get started now.

Job Summary:

We are looking for a Growth Marketing Manager, APAC to lead paid acquisition and performance media growth across key Asia-Pacific 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 APAC.

This role 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.

Job Expectations:

Manage paid media campaigns across global and APAC‑specific performance platforms, including Google Ads, Meta Ads, TikTok Ads, Apple Search Ads, LINE, Naver, Kakao, Yahoo Japan, Rakuten, 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 APAC markets.

Communicate performance results, insights, risks, and recommendations to leadership and cross‑functional stakeholders.

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.

Deep platform expertise across major global paid media channels, including Google Ads, Meta Ads, TikTok Ads, and Apple Search Ads.

Experience with APAC‑specific performance platforms such as LINE, Naver, Kakao, Yahoo Japan, Rakuten, or similar regional paid media channels.

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.

Deep expertise in paid media platforms, regional APAC media ecosystems, creative testing, campaign optimization, and incrementality‑based measurement

Highly analytical, comfortable managing large budgets, and experienced in adapting performance strategies across diverse APAC markets.

Professional fluency or native‑level fluency in English required.

Professional fluency or native‑level fluency in at least one major APAC language strongly preferred, such as Japanese, Korean, Mandarin Chinese, Cantonese, Thai, Vietnamese, Bahasa Indonesia, Hindi, or another regionally relevant language.

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 years 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

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

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 [e-mail]. Do not contact iHerb employees directly. If requested to work on a role, any Agency candidates would be presented through the internal recruiting organization.

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.