
Mingzhen Fang developed and overhauled core features of the perpetual trading interface in the OneKeyHQ/app-monorepo, focusing on both user experience and trading reliability. He implemented dual long/short trading with independent confirmations, enhanced Take Profit/Stop Loss logic, and introduced cross-margin and isolated margin management. Using TypeScript, React, and BigNumber.js, Mingzhen unified UI components for consistency across web and mobile platforms, improved error handling, and refined input validation. His work addressed complex financial calculations and data persistence, resulting in a more robust trading workflow. The depth of these changes improved risk controls, session persistence, and overall clarity for end users.

October 2025: Delivered a major Perpetual Trading UI overhaul in OneKeyHQ/app-monorepo, introducing dual long/short trading with independent confirmations, refined TP/SL input and calculations, cross-margin display, and isolated margin adjustments. Implemented robust error handling, input validation, and unified perps UI components for cross-platform consistency. Enhanced order closing UX, improved liquidation price accuracy, and added comprehensive account visibility (unrealized PnL and ledger history). Completed performance and UX refinements, including mobile/native panel fixes and a streamlined trading experience across devices.
October 2025: Delivered a major Perpetual Trading UI overhaul in OneKeyHQ/app-monorepo, introducing dual long/short trading with independent confirmations, refined TP/SL input and calculations, cross-margin display, and isolated margin adjustments. Implemented robust error handling, input validation, and unified perps UI components for cross-platform consistency. Enhanced order closing UX, improved liquidation price accuracy, and added comprehensive account visibility (unrealized PnL and ledger history). Completed performance and UX refinements, including mobile/native panel fixes and a streamlined trading experience across devices.
September 2025: Delivered major trading platform enhancements in OneKeyHQ/app-monorepo, focusing on perpetual and HyperLiquid trading. Implemented comprehensive TP/SL, UX and validation improvements, token persistence, and position management; added liquidation price display and bulk close for HyperLiquid; centralized trading feedback and improved cross-margin and iOS inputs. These changes enhance risk controls, persistence across sessions, and trader experience, delivering clear business value and reliability.
September 2025: Delivered major trading platform enhancements in OneKeyHQ/app-monorepo, focusing on perpetual and HyperLiquid trading. Implemented comprehensive TP/SL, UX and validation improvements, token persistence, and position management; added liquidation price display and bulk close for HyperLiquid; centralized trading feedback and improved cross-margin and iOS inputs. These changes enhance risk controls, persistence across sessions, and trader experience, delivering clear business value and reliability.
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