Web3 Product Lead | Wallets · Payments · Stablecoins

📍Hong Kong (Talent Scheme) · Toronto (PR) · Remote (Beijing or EST timezone)

📧 xifang.zhang@outlook.com

🪪 Catalizer.eth | 0xfannie.eth | fannie.sol | fannie.stepn

📦 GitHub: https://github.com/0xFannie

👩‍💻 Portfolio: https://xifangzhang.work

🌈About Me

<aside> 📌

• 8+ years of product management experience across IBM Research, Tencent, and Wanxiang Blockchain, covering both B2B and B2C Web3 products. Specialized in developer toolkits, self-custodial wallets, DeFi, and crypto-linked payment cards. Strong at driving 0→1 MVP launches, validating PMF, and aligning engineering, business, and marketing teams. • Holder of 4 blockchain patents, IELTS 8.0, PMP-certified, and licensed securities analyst (China SEC). • Creator and maintainer of Chain Tools (open-source blockchain utilities) and MultiSig Wallet Deployer — resources hosted on GitHub and deployed on Vercel.

</aside>

💼 Professional Experience

Product Owner | FindSatoshi Lab (FSL, formerly StepN) Hong Kong & Remote | May 2024 – Present

• GMT Pay (Crypto-linked U-Card Product)
  • Scope:
    • Led the end-to-end design and launch of GMT Pay, including login & security flows, KYC, crypto top-up, card & transaction management, and notification systems. Integrated GGUSD stablecoin, referral programs, and “invite friends to open cards” features for growth.
    • Built a self-hosted analytics dashboard using Helius and Moralis APIs (deployed via Streamlit) to visualize on-chain activity and support data-driven decisions.
  • Impact: Launched on iOS, Android, and Web within 4 months; supported in 80+ regions; achieved 1,500+ verified users within 20 days post-launch.
• FSL ID (Wallet & SDK Product)
  • Scope:
    • Led iteration of the FSL ID Wallet, driving the rollout of the FSL ID SDK (OAuth) for third-party integration and the 30-minute auto-approve feature for seamless transactions.
    • Planned integrations for UNS/ENS domains, smart router optimization, stablecoin and stock token support, gas sponsorship, and UI/UX enhancements (e.g., QR code wallet backups).
• Impact:
  • Developer side: Released SDK v0.1 within 1.5 months; enabled 20+ third-party dApp integrations; designed the FSL ID Dev Console, cutting integration time by 60%.
  • Consumer side: Achieved steady 20–30K new monthly registrations; reduced login steps by 40% and time by 50%; boosted swap fee revenue.

Senior Product Manager | Wanxiang Blockchain Shanghai | Dec 2021 – Apr 2024

• Led the CarbonCube product suite: built 3 blockchain-based carbon management products from scratch — consumer-facing Carbon Footprint, enterprise CarbonSource, and government CarbonPark. Acted as solution architect serving 50+ corporate clients, with 5–8 successful deployments.
• Contributed to PlatONE infrastructure: co-designed Samurai (now Vanna Proof) and PeriCoco (now Vanna Identity) blockchain middleware, and the firm’s first MPC wallet prototype.
• Drove PROME Network initiative: designed a DePIN product for distributed energy trading and storage-mining, including incentive tokenomics; facilitated collaboration with HashKey Tokenisation.

Senior Product Manager | Tencent Beijing | Mar 2021 – Dec 2021

• Designed the Changan Chain Low-Code Smart Contract IDE, launched on Tencent’s T-BaaS and ChanganChain platforms, reducing dev complexity by 80%.
• Conducted deep market research on developer toolkits and low-code solutions, presenting 3 internal proposals that shaped the ChanganChain Dev Ecosystem.