Paid Media Assistant Manager

Our client is looking for an experienced Paid Media Assistant Manager to join its marketing team in Tokyo.

Reporting to the Media Manager, you will be responsible for planning, executing and optimizing paid media campaigns across a portfolio of leading consumer brands. Working closely with Brand Marketing, Online and agency partners, you will help deliver effective omnichannel campaigns that drive brand awareness, high-quality traffic and measurable business results.

This is an excellent opportunity for an experienced digital media professional looking to take on a broader strategic and operational role within a global organization.

Paid Media Planning & Campaign Management

• Support the development of paid media plans for designated brands.
• Localize regional media strategies for the Japanese market, including channel selection, campaign calendars and creative assets.
• Brief and manage local media agencies in collaboration with the Brand Marketing team.
• Oversee day-to-day campaign execution and ensure campaigns are delivered on time and within budget.
• Monitor campaign performance and make recommendations to improve effectiveness and ROI.
• Manage campaigns across search, display, social and other digital channels.

Budget Management & Optimization

• Help determine appropriate paid media budgets and channel allocation.
• Review monthly advertising spend and recommend budget reallocations where required.
• Monitor campaign investment against objectives and forecasts.
• Identify opportunities to improve media efficiency and maximize return on investment.

Performance & Growth Marketing

• Monitor campaigns in real time and make ongoing optimization recommendations.
• Reassess media allocation when campaigns are not delivering against agreed KPIs.
• Identify emerging digital trends and opportunities for brands to leverage.
• Benchmark competitors and identify new paid media opportunities and best practices.
• Support performance marketing activities from research and planning through to execution, optimization, analysis and reporting.

Agency & Corporate Media Management

• Support the Media Manager with agency management, including meetings, negotiations and business reviews.
• Consolidate media spend and campaign calendars across brands.
• Support the implementation of common media KPIs, reporting frameworks and briefing processes.
• Contribute to the adoption and effective use of marketing technology and MarTech tools.
• Coordinate digital creative assets between agencies, publishers and technology partners.

Ideal Candidate

The successful candidate will have a strong background in digital and paid media, ideally gained within a media agency or in-house marketing environment.

Requirements

• 5–8 years' experience in paid media, digital marketing or a related field.
• Previous experience in media planning and campaign management.
• Strong digital performance marketing experience.
• Experience working with media agencies or within a media agency environment.
• Strong analytical and reporting skills.
• Comfortable working with campaign data, KPIs and performance metrics.
• Experience with GA4 and digital advertising platforms.
• Knowledge of performance metrics including CPA, CPL, CPC and ROI.
• Strong project management and organizational skills.
• Excellent communication and interpersonal skills.
• Ability to work independently while collaborating effectively with multiple teams.
• Strong attention to detail and ability to prioritize in a fast-paced environment.
• Passion for digital marketing, new technologies and emerging trends.

Digital Platforms & Tools

Experience with some or all of the following would be advantageous:

• Google Ads / Google AdWords
• Google Analytics / GA4
• DV360
• YouTube
• Meta Ads
• TikTok Ads
• Search Engine Marketing (SEM)
• Display advertising
• Social media advertising

Language Requirements

• Native-level Japanese
• Business-level English
• Strong written and verbal communication skills in both languages.

• Base salary negotiable depending on skills and experience.
• Annual discretionary bonus.

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