Client Investment Manager

About WPP Media WPP is the trusted growth partner for the world’s leading brands. With exceptional talent, trusted data and intelligence, and world-class partnerships – all united by our pioneering agentic marketing platform, WPP Open – we help clients navigate change, capture opportunity, and deliver transformational growth.  WPP Media is WPP's AI-driven media operating unit, bringing together media, data, and partnerships to deliver creative personalisation at scale. Connected through WPP Open and powered by Open Intelligence, clients see exactly where, how, and why their media investment is working. For more information, visit wppmedia.com . About Wavemaker This role is within Wavemaker, a leading brand within WPP Media, where you will be instrumental in provoking growth for clients through pioneering media, content, and technology solutions. Role Summary and Impact As the Client Investment Manager for our client’s Home & Personal Care portfolio, you will serve as the day-to-day investment lead orchestrating high-volume digital media buys across some of the world’s most recognizable household brands. You will oversee multi-platform campaigns spanning Digital Video (including Upfront and scatter buys), Digital Audio, streaming integrations, and Retail Media audiences. • Lead partner evaluations, issue and evaluate RFPs, and negotiate competitive pricing, programming mix, and added value across key media partners (Amazon, YouTube, Disney, Peacock, Netflix, and Audio networks). • Manage Digital Video Upfront commitments and navigate scatter budgets, mid-year budget shifts, and incremental client requests. • Spearhead full-funnel digital alignment, connecting upper-funnel video brand awareness to conversion by leveraging retail media audiences and shopper units across platforms like Amazon and Walmart. • Collaborate closely with Strategy, Planning, and Programmatic activation teams to build holistic investment plans and determine optimal buying routes. • Centrally manage all investment aspects of active campaigns from inception to monthly reconciliation, tracking rate efficiency, authorizations, and delivery. • Enforce strict ad governance and accountability, including ad tagging, taxonomy (Claravine), and brand safety/verification guidelines (DoubleVerify). • Oversee and QA buy setups, pacing, and flighting in buying platforms, troubleshooting delivery or technical ad-serving discrepancies (DCM / DV360). • Serve as a primary client-facing investment lead, presenting monthly performance reviews, Quarterly Business Reviews (QBRs), and strategic POVs. Skills and Experience • 4+ years of digital media investment, planning, or activation experience. • Experience on CPG/FMCG, retail media, or high-volume multi-brand accounts is strongly preferred. • Prisma (Mediaocean): Expert proficiency in digital billing, authorizations, and financial reconciliation. • Ad Serving / Verification: Hands-on experience with Google Campaign Manager (DCM) and DV360. • Familiarity with DoubleVerify (brand safety) and Claravine (taxonomy governance). • Excellent negotiation and analytical abilities; advanced proficiency in Excel (pivot tables, VLOOKUPs, data modeling) and presentation deck development in PowerPoint. Life at WPP Media & Benefits Our passion for shaping the next era of media includes investing in our employees to help them do their best work, and we’re just as committed to employee growth as we are to responsible media investment. WPP Media employees can tap into the global WPP Media & WPP networks to pursue their passions, grow their networks, and learn at the cutting edge of marketing and advertising. We have a variety of employee resource groups and host frequent in-office events showcasing team wins, sharing thought