# Griffin Yianakopolos Director of Product Management · Seattle, WA griffinyanny@gmail.com · https://griffin.yanny.io · LinkedIn: https://www.linkedin.com/in/yianakopolos · GitHub: https://github.com/griffinyanny Director of Product Management leading Zillow’s search, consumer communications, and Shopping AI, with 10 years at Amazon and Zillow. Invented and scaled BuyAbility to 5M+ enrolled users and built Fire TV Channels from scratch to 3M+ users. Hands-on builder using agentic coding tools to develop AI systems and improve how cross-functional teams operate. ## Work ### Director, Product Management, Zillow Group Search, Consumer Communications & Shopping AI · Seattle, WA · Aug 2026 – Present Lead six PMs across search, consumer communications, and Shopping AI, partnering with approximately 53 engineers. - Defined Zillow's Shopping strategy across search, home details, and communications; aligned teams on experience quality and personalization, with daily active users as a shared success metric. - Led a cross-functional audit of Zillow AI mode search use cases; defining LLM response and tool-use requirements to guide evaluations and prioritize release blockers with partner teams. - Reorganizing Zillow Search into two cross-platform pods, each with distinct OKRs and a full cross-functional team spanning product, design, data science, and engineering, to enable faster, more autonomous decisions. - Implementing an AI-native operating model through Codex and Claude Code training and a shared context repository that teams and agents use to support aligned, autonomous execution. - Improved leadership decision-making and team accountability by reinventing Zillow’s core Monthly Business Review around input metrics and progress against goals; built AI tooling and partnered with data science to automate preparation. ### Senior Manager, Product Management, Zillow Group Core Zillow Consumer · Seattle, WA · Feb 2025 – Aug 2026 Led four PMs across affordability (BuyAbility and Zillow AI mode), planning, information architecture, app growth, and social impact, partnering with approximately 26 engineers. - Scaled BuyAbility from 0 to 5M+ enrolled users in 2 years through experimentation across discovery, save, and enrollment, increasing monthly enrollments by 166%; enrolled users converted to pre-qualification at 10x the rate of non-enrolled users. - Led delivery of BuyAbility in Zillow’s ChatGPT app in six weeks for OpenAI’s inaugural apps launch (Oct. 2025); defined UX, MCP tool behavior, and app-wide metrics and instrumentation. - Partnered with data science on an ML propensity model that improved loan-funding prediction by 35% and targeting accuracy across multiple lines of business. - Led the Experian partnership and credit-verification integration for BuyAbility, targeting 1M verified users; the pricing it secured let Zillow Home Loans consolidate its pre-qualification credit data at a material monthly saving. - Defined the vision and led the cross-platform launch of Zillow’s Plan Tab, a unified planning experience for buyers, sellers, and renters; shaped the C-suite investment pitch and refocused team goals on user activation. ### Principal Product Manager, Zillow Group Zillow Home Loans (ZHL) Growth & Experience · Seattle, WA · Jun 2023 – Feb 2025 - Invented and launched BuyAbility, a real-time personalized affordability product, from concept to iOS/Android launch in 2.5 months; recognized internally as one of Zillow's most significant innovations since the Zestimate (patent pending). - Invented Zillow’s centralized affordability calculation service, defined its logic and product requirements, and shipped the MVP in 3 months; the service now supports BuyAbility, AI mode, search, home details, and payment experiences. - Drove cross-org execution post-MVP: secured roadmap commitments from 12+ teams, funding for +10 engineers and +1 PM, and alignment across 30+ partner engineers to deliver a cohesive multi-surface experience. ### Senior Product Manager (Lead), Amazon Fire TV Content & Video Advertising · Seattle, WA · Nov 2021 – Jun 2023 - Built Fire TV Channels app from scratch, a free ad-supported streaming service on Fire TV, scaling to 3M+ customers and 5M hours streamed (as of May 2023), unlocking a large incremental video advertising revenue stream. - Led a 50+ person cross-functional team to launch and scale Fire TV Channels, defining the roadmap, aligning senior leadership on resourcing, and delivering multiple releases that achieved 4.1/5 CSAT in beta. - Collaborated with Marketing, BD, and PR to drive adoption of new launches via on-device marketing and press coverage in high-profile publications (The Verge, TechCrunch). ### Senior Product Manager, Amazon Alexa · Seattle, WA · Dec 2020 – Nov 2021 - Launched targeted notification system reaching 2M+ users for engagement and reactivation; shipped Alexa's first-run voice tutorial to increase active days and reduce lapse. ### Senior Financial Analyst & Financial Analyst I/II, Amazon Amazon Ads & Finance Rotation Program · Seattle, WA · Aug 2016 – Dec 2020 - Finance owner of $400M Devices Display Advertising business, responsible for all planning, modeling, and reporting. ## Education ### B.A., Political Science, focus in Political Economy, University of Washington Seattle, WA · Sep 2012 – Jun 2016 ## Skills - **Product:** Product strategy and roadmaps, 0-to-1 development and scaling, growth and experimentation, user research, product analytics - **AI:** LLM product development and evaluations, prompt and context engineering, MCP and tool use, multi-agent orchestration, Claude Code and Codex - **Data & tools:** SQL, Databricks, Tableau ## Projects ### Meal App Built an AI meal-planning app that personalizes recipes and weekly plans to household preferences and creates grocery lists; implemented schema-validated LLM outputs and evaluations for generation quality and dietary constraints. https://github.com/griffinyanny/meal-app ### Chief of Staff Built a personal AI system with persistent context, custom MCP integrations, and scheduled agents for writing workflows and feedback, meeting preparation, task management, and decision support; added a native macOS interface and review controls for automated work, replacing a paid Todoist workflow. ### Personal Finance Built a personal finance app with automated bank sync, household cash-flow forecasting, and a tested payment optimizer that recommends what to pay and when; replaced a paid Monarch subscription.