Client Services Partner

Location: Tokyo, Japan

Work setup: Hybrid - 3 Days in office

At PubMatic, we’re shaping the future of digital advertising — empowering brands and agencies to thrive in an open, addressable ecosystem.

As a Client Services Partner, you’ll play a critical role in turning programmatic strategy into measurable success. Sitting at the intersection of data, technology, and trading expertise, you’ll bring campaigns to life across the PubMatic platform — driving performance, strengthening partnerships, and unlocking growth for some of the world’s leading advertisers.

If you’re passionate about programmatic, thrive in a fast‑moving environment, and love transforming insights into impact, this is your opportunity to make a difference.

What you’ll focus on

• Own end‑to‑end post‑sale campaign management — from deal approval and activation through optimisation and renewal

• Set up and launch deals, manage pacing, troubleshoot issues, and continuously optimise performance

• Analyse campaign data to deliver actionable, insight‑driven recommendations that improve KPIs and revenue

• Deliver weekly and monthly reporting, lead QBRs, and provide inventory performance analysis

• Execute hands‑on DSP trading and optimisation across platforms such as DV360, The Trade Desk, Amazon DSP, or similar

• Partner cross‑functionally with Sales, Strategy, Addressability, Activate Trading, and Deal Desk teams to ensure seamless execution

• Support SPO initiatives, proposal development, and performance tracking

• Identify and implement process improvements that enhance operational efficiency and best practice

What you'll bring

Essential

• 3+ years’ experience in Programmatic Trading, Client Services, or Account Management within AdTech

• Hands‑on experience with major DSPs (e.g., DV360, The Trade Desk, Amazon DSP, or similar)

• Strong understanding of programmatic buying and selling, pricing models, and optimisation strategies

• Confidence analysing campaign performance data, with advanced Excel skills

• Fluency in Japanese

Desirable

• Experience with Salesforce, Looker, Tableau, Power BI, or similar analytics/reporting tools

• Experience working with agency and brand stakeholders in a client‑facing environment

• A proactive approach to process improvement and operational excellence

Our commitment to inclusion

PubMatic is proud to be an equal opportunity employer. We are committed to fostering an inclusive workplace where diversity is celebrated and everyone feels empowered to do their best work. We welcome applicants of all backgrounds, experiences, and perspectives, and believe diversity makes our teams, and our products, stronger.

If you’re excited to shape the future of programmatic advertising and make an impact at a global ad tech leader, we’d love to hear from you.