WPP Media | Senior Planner (EM) Japan

WPP is the trusted growth partner for the world’s leading brands.

We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth.

We have been building the world's most valuable brands for 50 years and have global reach across 100+ markets, with deep local expertise.

Our people are the key to our success. We're committed to fostering a culture of creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career opportunities that help our people grow.

For more information, visit WPP.com.

Role Overview

• The Senior Planner supports the development and execution of data-driven media strategies for key global clients. This role balances strategic thinking, performance management, and financial oversight to ensure campaigns are delivered effectively and meet client objectives.

• You will work closely with internal teams and clients to translate insights into practical media recommendations while maintaining strong operational discipline.

Key Responsibilities

1. Media Planning & Execution

• Develop channel-specific media tactics across YouTube, Meta, TikTok, LINE, and OTT based on campaign data and market insights.

• Build detailed media plans aligned to approved strategies and client KPIs.

• Collaborate with Activation teams to ensure accurate briefings, smooth setup, and timely launches.

• Support coordination with the Investment team for OTT planning and execution.

2. Performance Monitoring & Reporting

• Analyze campaign performance and identify optimization opportunities.

• Prepare and deliver bi-weekly reports with clear insights and actionable recommendations.

• Contribute to End-of-Campaign reports, highlighting key results and learnings.

• Support ongoing testing and learning agendas across channels.

3. Budget Management & Accuracy

• Track monthly media budgets and monitor pacing to ensure alignment with approved plans.

• Maintain GST tracking and provide commentary on variances when needed.

• Ensure alignment between planned spend and invoicing in coordination with finance.

• Support accurate input into systems such as Salesforce.

4. Client & Team Collaboration

• Manage day-to-day communication with clients via email and Slack.

• Support weekly WIP meetings by preparing updates and maintaining trackers.

• Respond to requests from local and global stakeholders in a timely manner.

• Work collaboratively with junior team members and provide guidance where appropriate.

5. Process & Operational Support

• Follow established planning and financial processes to ensure consistency and compliance.

• Identify small process improvements to enhance efficiency and reporting accuracy.

Required Experience & Skills

• 3–5 years of experience in digital media planning or performance marketing, ideally within an agency.

• Hands-on experience across key platforms including YouTube, Meta, TikTok, LINE, and OTT.

• Strong analytical skills with the ability to interpret data and extract meaningful insights.

• Comfortable presenting performance updates to clients.

• Solid budget tracking experience with strong attention to detail.

• Ability to manage multiple campaigns and deadlines effectively.

• Proficiency in Excel and PowerPoint; familiarity with media reporting tools.

Preferred

• Experience working with regional or global clients.

• Familiarity with Salesforce or similar financial systems.

• Bilingual (Japanese and English) preferred.

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