Senior Manager, Experience

Senior Manager, Experience & Activation (SEM)Join to apply for the Senior Manager, Experience & Activation (SEM)role at Assembly Global Overview We are Assembly – and we're not like the rest. We're the modern alternative agency, bringing together industry-leading data, talent, and tech to Find the Change That Fuels Growth for the best brands on the planet. Our diverse, global community of over 1,600 passionate experts combines global thinking with local expertise in more than 20 markets worldwide. We use STAGE, Assembly's proprietary, privacy-centric data solutions platform, to surface insights that transform into actionable brand opportunities. We're at the cutting edge of new media, technology, and platforms embedded in the lives of today's consumers, and we're committed to Leave the World Better Than We Found It through measurable social and environmental impact work. We were named The Drum's APAC Media Agency of the Year in 2021What you'll do What you'll do on any given day Strategic Responsibilities Partner with Planning & Strategy team to translate briefs into clear SEM objectives Identify gaps/opportunities in keyword themes, new product launches, and tentpole integration Validate BU-specific priorities and support budget modelling for SEM vs other channels Ensure alignment on KPIs & Performance goals: CPV, CTR, ROAS, Revenue, Registration Contribute to the development of the SEM strategy slide in the media plan Recommend budget splits (brand vs generic vs PMAX), audience strategies, ad extensions, and test ideas Integrate insights from Google, quarterly business reviews, and platform betas into ongoing planning Stay updated with platform changes and propose pilot programs for early adoption Proactively work with partners for new test and learn opportunities to bring to the client Cross-functional & Stakeholder Management Serve as SEM subject matter expert across internal client teams, ASM teams, and platform partners Escalate blockers or opportunities tied to budget, performance or technical issues Partner with global, regional, and local teams to ensure SEM strategies are consistent, scalable, and tailored to market needs Execution Oversight Ensure budget and bid strategies are accurately implemented (tROAS, Max Conversion, etc.)Validate setup to ensure cross-market consistency Coordinate with analysts, local teams (e.g., Korea), and offshore support teams for market-specific adjustments such as language and localized promotions Manage POE timelines and processes, ensuring proper QA on screenshots and accuracy of reporting for POWD and POE documentation Help team to prioritise tasks, setups, deliverables and communicate them to client Performance Management & Reporting Lead weekly and quarterly review of SEM performance (traffic, conversions, efficiency, budget pacing)Approve budget reallocation across BUs based on pacing & performance trends Define and approve testing roadmaps including ad copy A/B testing, audience segmentation, and device bid modifiers Identify underperforming trends and provide actionable recommendations to improve outcomes Does this sound like you?Minimum 7 years in media agency-side roles, with at least 3 years in a people-management and managerial role Fluent English communication, verbal and written Experienced in integrated media planning, with a strong understanding of digital channels activation Deep mastery of Google Ads, including SA360, Performance Max and Shopping campaigns and cross‐platform SEM expertise across Microsoft Ads and Naver Skilled in automation and AI-driven search, with hands-on experience in bid strategies (tROAS, Max Conversion), campaign automation, and integration with GA4/Adobe Analytics for optimization Experienced in feed management and dynamic ads, including product feeds, Google Merchant Center, and Dynamic Search Ads (DSA) campaigns Strong in budget pacing models and forecasting accuracy across product segments and markets Advanced Excel / Looker Studio / Tableau / Adobe Analytics reporting skills Familiarity with incrementality tests (geo-experiments, brand vs generic testing)Significant proven experience in working with multiple stakeholders like media partners and external agencies Demonstrable experience in translating client objectives into feasible, well thought-out digital strategies with a focus towards performance marketing Strong knowledge of the APAC media landscape to adapt and localise global and regional strategies Proven track record in managing complex accounts with multiple stakeholders across multiple time-zones effectively while developing strong client relationships Experience leading large scale