Product Manager (Ad Cloud Platform)

About Appier  Appier (TSE: 4180) is an AI-native Agentic AI as a Service (AaaS) company that empowers businesses to create value through cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of “Making AI Easy by Making Software Intelligent,” Appier helps businesses turn AI into ROI through its Ad Cloud, Personalization Cloud, and Data Cloud—each powered by Agentic AI that enables autonomous, adaptive, and real-time decision-making. Today, Appier operates 17 offices across APAC, the US, and EMEA, and is listed on the Tokyo Stock Exchange. Learn more at www.appier.com.   About the role We are looking for a Product Manager to own well-scoped modules within the Ad Cloud platform and grow into larger, multi-system ownership over time. You will turn business needs into clear product specs, partner closely with engineering on how things get built, and build with agentic AI as part of your product workflow. This role is a strong fit if you are technically literate, comfortable reasoning about how systems fit together, and already building with AI agents. You will operate with growing autonomy on your own area, and lean on senior PMs and engineering leads for cross-cutting and architectural calls.   What You Will Do Product Design & Delivery Own the end-to-end lifecycle of well-defined modules and features within a larger platform. Write clear PRDs and design docs covering user flows, edge cases, and acceptance criteria. Contribute to system maps and API contracts, with review and guidance from senior PMs and engineering leads. Balance feature completeness against release velocity for the scope you own. Specification & Execution Write functional specs that engineers can build from: request/response shapes, key states, and error handling for your features, with API-level details developed together with engineering. Define status and state-transition behavior for the flows you own. Break initiatives into staged, dependency-aware milestones, with support on the largest decompositions. Work directly with engineering on implementation trade-offs; resolve product-scope decisions in your area and escalate architectural or cross-system blockers. Agentic AI in the Product Workflow Design, prototype, and help ship agentic AI workflows and features, and evaluate where agentic capabilities belong in the product. Rapidly turn concepts into working prototypes using AI-assisted tooling. Cross-Functional Collaboration Translate business requirements into specifications for your area and keep stakeholders aligned. Drive decisions within your scope and escalate cross-cutting or architectural calls with a clear recommendation. Support product rollouts with phased releases and feature gating.   What You Will Need [Minimum qualifications] 1-3 years in a product role, including demonstrated ownership of requirements, prioritization, and delivery. Engineers transitioning into product are welcome if th...