
Nguyen Van Hau developed and maintained the oraidex/oraiswap-frontend, delivering robust cross-chain swap, bridge, and wallet integration features over ten months. He engineered solutions for reliable token bridging, dynamic fee calculation, and scalable price data retrieval, using TypeScript, React, and the Cosmos SDK. His work included chunked CoinGecko API calls for efficient price feeds, deterministic gas pricing for Cosmos-based swaps, and UI enhancements for mobile and desktop. By refactoring bridge logic and integrating SDK updates, he improved transaction reliability and user experience. Hau’s contributions demonstrated depth in frontend architecture, state management, and cross-chain orchestration, resulting in a maintainable, business-focused codebase.

September 2025 performance summary: Delivered a robust data retrieval enhancement for price feeds in oraidex/oraiswap-frontend by introducing chunked CoinGecko API calls. This change partitions large token lists into smaller chunks to avoid timeouts, ensures correct fetching and per-chunk caching of prices and ranks, and improves reliability and caching efficiency for price data. This lays the foundation for scalable token coverage and improved UX through faster, more dependable price data. Commit 3b622b19387e052e70330c5212e117de3cd221c6.
September 2025 performance summary: Delivered a robust data retrieval enhancement for price feeds in oraidex/oraiswap-frontend by introducing chunked CoinGecko API calls. This change partitions large token lists into smaller chunks to avoid timeouts, ensures correct fetching and per-chunk caching of prices and ranks, and improves reliability and caching efficiency for price data. This lays the foundation for scalable token coverage and improved UX through faster, more dependable price data. Commit 3b622b19387e052e70330c5212e117de3cd221c6.
August 2025: Focused frontend work delivered a major enhancement to the bridge feature in oraiswap-frontend, improving fee display and calculation across tokens (including BTC) with UI refinements for received amounts and available balances. Resolved bridge token search issues, improving token discovery during bridging. This work strengthens user trust in cross-chain swaps and reduces support friction by making fees, balances, and outcomes clearer.
August 2025: Focused frontend work delivered a major enhancement to the bridge feature in oraiswap-frontend, improving fee display and calculation across tokens (including BTC) with UI refinements for received amounts and available balances. Resolved bridge token search issues, improving token discovery during bridging. This work strengthens user trust in cross-chain swaps and reduces support friction by making fees, balances, and outcomes clearer.
Concise monthly summary for 2025-05 focusing on performance, reliability, and business value for the ora idex/oraiswap-frontend. Delivered cross-chain swap improvements and IBC readiness, aligning frontend logic with updated SDKs and chain-specific rules. Key features delivered: - Gas Price Calculation Improvements for Oraichain Cosmos-based Swaps: deterministic gas pricing with a fixed gas price of 1.8 for cross-chain swaps and auto pricing otherwise; refined to avoid applying fixed gas on intra-chain swaps. - Balance and Relayer Fee Skip Logic Enhancements for Pepe Tokens and Celestia Chain: added skip logic for balance verification in IBC Pepe swaps; renamed isCheckBalanceIbc to skipBalanceIbcCheck for Celestia chain; bypassed relayer fee checks for Pepe tokens; updated dependencies. Major bugs fixed: - Corrected gas price application logic to prevent mispricing on intra-chain vs cross-chain swaps; resolved edge cases around Pepe token flows and Celestia chain balance checks. Overall impact and accomplishments: - Improved user experience with more predictable swap costs and higher cross-chain swap reliability; reduced transaction failures and support overhead; better maintainability through clearer flag naming and SDK dependency updates. Technologies/skills demonstrated: - Frontend TypeScript/React, Cosmos IBC concepts, gas estimation logic, cross-chain swap orchestration, and SDK/dependency management.
Concise monthly summary for 2025-05 focusing on performance, reliability, and business value for the ora idex/oraiswap-frontend. Delivered cross-chain swap improvements and IBC readiness, aligning frontend logic with updated SDKs and chain-specific rules. Key features delivered: - Gas Price Calculation Improvements for Oraichain Cosmos-based Swaps: deterministic gas pricing with a fixed gas price of 1.8 for cross-chain swaps and auto pricing otherwise; refined to avoid applying fixed gas on intra-chain swaps. - Balance and Relayer Fee Skip Logic Enhancements for Pepe Tokens and Celestia Chain: added skip logic for balance verification in IBC Pepe swaps; renamed isCheckBalanceIbc to skipBalanceIbcCheck for Celestia chain; bypassed relayer fee checks for Pepe tokens; updated dependencies. Major bugs fixed: - Corrected gas price application logic to prevent mispricing on intra-chain vs cross-chain swaps; resolved edge cases around Pepe token flows and Celestia chain balance checks. Overall impact and accomplishments: - Improved user experience with more predictable swap costs and higher cross-chain swap reliability; reduced transaction failures and support overhead; better maintainability through clearer flag naming and SDK dependency updates. Technologies/skills demonstrated: - Frontend TypeScript/React, Cosmos IBC concepts, gas estimation logic, cross-chain swap orchestration, and SDK/dependency management.
April 2025 monthly performance summary for OpenHands and oraiswap-frontend. Delivered user-centric features, reliability improvements, and security-focused API enhancements across two repositories, driving onboarding efficiency, cross-network capabilities, and data-driven user experiences.
April 2025 monthly performance summary for OpenHands and oraiswap-frontend. Delivered user-centric features, reliability improvements, and security-focused API enhancements across two repositories, driving onboarding efficiency, cross-network capabilities, and data-driven user experiences.
March 2025 performance summary for oraidex and Oraichain projects. Focused on reliability improvements, cross-chain functionality, and UI/terminal feature integration across repositories. Delivered concrete, business-value features while deprecating non-core UI components to reduce surface area and maintenance.
March 2025 performance summary for oraidex and Oraichain projects. Focused on reliability improvements, cross-chain functionality, and UI/terminal feature integration across repositories. Delivered concrete, business-value features while deprecating non-core UI components to reduce surface area and maintenance.
February 2025 monthly summary for oraidex/oraiswap-frontend. Delivered a broad set of frontend enhancements, stability fixes, and integration work that improves user experience, reliability, and developer productivity. Focusing on business value, the team shipped UI polish, stabilized data loading and simulation flows, and integrated key services to enable new capabilities.
February 2025 monthly summary for oraidex/oraiswap-frontend. Delivered a broad set of frontend enhancements, stability fixes, and integration work that improves user experience, reliability, and developer productivity. Focusing on business value, the team shipped UI polish, stabilized data loading and simulation flows, and integrated key services to enable new capabilities.
January 2025 monthly summary for oraidex/oraiswap-frontend focusing on delivering customer-visible features, improving stability, and expanding cross-chain capabilities. The work emphasized business value through reliable UI updates, robust bridge logic, and maintainable code improvements.
January 2025 monthly summary for oraidex/oraiswap-frontend focusing on delivering customer-visible features, improving stability, and expanding cross-chain capabilities. The work emphasized business value through reliable UI updates, robust bridge logic, and maintainable code improvements.
December 2024: Delivered substantial cross-chain and stability work for the Oraiswap frontend, focusing on Solana bridge capabilities, wallet integration, TON readiness, and expanded token support. Key outcomes include finalization of the Solana Bridge Core and Address Bridge, owallet and Phantom wallet account change handling, and completed TON integration with SDK import, cache handling, and bridge token support. Token coverage expanded with Max SOL and S20 ORAI tokens, complemented by Pumb utilities and enhanced analytics. These efforts improved cross-chain usability, reliability, and developer productivity, enabling faster feature delivery and greater business value.
December 2024: Delivered substantial cross-chain and stability work for the Oraiswap frontend, focusing on Solana bridge capabilities, wallet integration, TON readiness, and expanded token support. Key outcomes include finalization of the Solana Bridge Core and Address Bridge, owallet and Phantom wallet account change handling, and completed TON integration with SDK import, cache handling, and bridge token support. Token coverage expanded with Max SOL and S20 ORAI tokens, complemented by Pumb utilities and enhanced analytics. These efforts improved cross-chain usability, reliability, and developer productivity, enabling faster feature delivery and greater business value.
November 2024 performance highlights for oraidex/oraiswap-frontend focused on performance, stability, and cross‑chain reliability. Delivered targeted frontend optimizations, UI cleanups, and SDK/bridge updates that reduce load times, prevent crashes, and enable more robust operations across multiple chains. These efforts translate to measurable business value through faster onboarding, smoother trading flows, and increased user trust.
November 2024 performance highlights for oraidex/oraiswap-frontend focused on performance, stability, and cross‑chain reliability. Delivered targeted frontend optimizations, UI cleanups, and SDK/bridge updates that reduce load times, prevent crashes, and enable more robust operations across multiple chains. These efforts translate to measurable business value through faster onboarding, smoother trading flows, and increased user trust.
October 2024 (2024-10) — oraidex/oraiswap-frontend: Delivered critical BTC flow enablement, improved UI responsiveness, dynamic routing for cross-chain support, hardened token loading for EVM networks, and corrected swap math. Also began deprecation of Krypton (KWT) to align with token strategy. These efforts improved conversion reliability, routing flexibility, and token handling, driving better user experience and trust in cross-chain swaps.
October 2024 (2024-10) — oraidex/oraiswap-frontend: Delivered critical BTC flow enablement, improved UI responsiveness, dynamic routing for cross-chain support, hardened token loading for EVM networks, and corrected swap math. Also began deprecation of Krypton (KWT) to align with token strategy. These efforts improved conversion reliability, routing flexibility, and token handling, driving better user experience and trust in cross-chain swaps.
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