David Lee

Web3 AI agent platform: Fello, the agent, researches, executes, and automates onchain transactions from plain-language requests. As HyperPlay, the same team ran a web3 game store.

• Head of Product, CoinFelloAug 2025 to Present
• Head of Product, HyperPlayMay 2025 to Aug 2025
• VP of Product Operations, HyperPlayMar 2024 to Aug 2025
• Product & Design Consultant, HyperPlayDec 2023 to Mar 2024

• Led Fello into production as a live AI agent: $815,000+ in agent-executed transaction volume and 2,200+ live user automations since the February 2026 soft launch, across 8,500+ unique wallets.
• Shipped Fello 2 (Aug 2026), the next major version of the agent.
• Made safe delegated execution the core product bet: users set spending caps, allowed assets, and expiry dates, the agent cannot act outside them, and users keep custody of their own keys.
• Extended Fello beyond its own app with an MCP server and an agent skill, so people can run it from the AI assistants they already use, including Claude Code and Grok Bot.
• Defined benchmarks and eval sets for agent quality and led AI vendor evaluation.
• Redesigned onboarding to be more generative and personalized via the agent itself, with sponsored transaction fees and simple onramping, leading to an 82% increase in wallet activation.
• Drove growth through Strategy Templates, partner rewards campaigns with Monad, and a rewards and referral program, writing the PRFAQ and designing incentives that favor real users over short-term reward seekers.
• At HyperPlay, led player and developer experience for the game store, quests, an in-game wallet overlay built with MetaMask, and Telegram community features. Also ran Mantle Games Fest, a partner event with a 300K MNT prize pool.

• Launched a fall-prevention iOS and watchOS app for adults over 65 and took it to first revenue, a joint venture of Ochsner Health and PX Venture Studio.
• Led market research and scoped the MVP for an automated rover that inspects public right-of-way, a joint venture of Honda and PX Venture Studio.

Web3 prop tech.

• Grew daily active users 5x (500 to 2,500) by partnering with data science to turn unique property datasets into SEO pages that ranked, such as most expensive and best investment homes by zip code.
• Raised retention 30% with new property search and tracking that showed locals' home valuations.
• Launched Listing Sea, a companion venture, within 5 weeks of ideation: verified residents shared fair market value opinions, with their reasoning, on homes in their own city.

• Joined as the first tech hire and built the product and tech team to 23 people with a $3M annual budget.
• Launched iOS and Android apps within 6 months of new price transparency rules, leading to the acquisition.
• Owned customer retention and revenue growth, and led sales demos.

• Raised user activation 60% with a new onboarding flow that surfaced FAQs and social proof at each step.
• Cut support calls 50% by restructuring the customer dashboard's information architecture, informed by card sorting and tree testing.

• Onboarded 43 brokerages (43,000 agents) onto the platform my team built, managing 27 people across 4 teams.
• Designed the analytics plan that gave HomeServices data across all of its brokerages for the first time.

• Co-built the auction technology platform with a partner, leading 4 product designers across a new online marketplace, CRM, and auctioneer dashboard.
• Saved $240K within a year of launch by moving 95% of auctions onto the new online marketplace.
• Served as a key stakeholder through the 11-month acquisition of the platform and team by Berkshire Hathaway HomeServices of America, working with 16 C-levels.

• Cut Affordable Care Act related support calls 30% with an education-focused dashboard in the flagship app, then the #1 paid business app on the iOS App Store, and created the company's first design system across iOS, Android, and web.

• Cut physician lab order time 76%, raised physician activation 40% with new onboarding, and built the Axure prototype that helped raise $2.5M.

• Negotiated with residential communities on behalf of clients and grew the firm's web traffic through social media.