
Dongha Kim engineered robust cross-chain trading and bridging infrastructure for the across-protocol repositories, focusing on reliability, observability, and asset coverage. Working extensively in TypeScript and JavaScript, Dongha delivered features such as dynamic contract address resolution, scientific notation handling for numeric inputs, and symbol-based price lookups, while strengthening API integration and error handling. In the across-protocol/frontend and sdk, he improved swap reliability, gas estimation, and cross-chain token support, leveraging technologies like OpenTelemetry and Ethers.js. His work demonstrated depth in backend and full stack development, with careful attention to test coverage, deployment automation, and maintainability across evolving DeFi and blockchain environments.
February 2026: Focused reliability hardening for CCTP message processing in the across-protocol/relayer. Delivered three targeted bug fixes to harden the finalizer, handle placeholder and empty messages, and correct encoding when the API returns 0x. These changes reduce transaction failures due to API edge cases, improve finalization correctness, and bolster cross-chain messaging reliability. Demonstrates disciplined debugging, defensive coding, and API integration skills, with direct business value in uptime and throughput.
February 2026: Focused reliability hardening for CCTP message processing in the across-protocol/relayer. Delivered three targeted bug fixes to harden the finalizer, handle placeholder and empty messages, and correct encoding when the API returns 0x. These changes reduce transaction failures due to API edge cases, improve finalization correctness, and bolster cross-chain messaging reliability. Demonstrates disciplined debugging, defensive coding, and API integration skills, with direct business value in uptime and throughput.
January 2026 — Across Protocol SDK: Focused on robust numeric input handling and test coverage. Delivered toBNWei: Support scientific notation for numeric inputs with tests, significantly reducing input-related edge cases for financial conversions and improving developer experience.
January 2026 — Across Protocol SDK: Focused on robust numeric input handling and test coverage. Delivered toBNWei: Support scientific notation for numeric inputs with tests, significantly reducing input-related edge cases for financial conversions and improving developer experience.
December 2025: Delivered a reliability-focused enhancement for across-protocol/relayer by implementing Dynamic Contract Address Resolution by Chain ID for Sponsored Destination Handlers. This feature enables retrieving deployed contract addresses based on chain ID to correctly configure sponsored destination handlers, improving cross-network deployment reliability and reducing misconfigurations. The work was anchored by the commit 220067b79bcccabb207f25c168a7474f3b3c4027 (chore: update sponsored dst handler addresses (#2824)). Overall, this update strengthens cross-network interoperability and simplifies onboarding for new networks; no additional major bug fixes were required this month.
December 2025: Delivered a reliability-focused enhancement for across-protocol/relayer by implementing Dynamic Contract Address Resolution by Chain ID for Sponsored Destination Handlers. This feature enables retrieving deployed contract addresses based on chain ID to correctly configure sponsored destination handlers, improving cross-network deployment reliability and reducing misconfigurations. The work was anchored by the commit 220067b79bcccabb207f25c168a7474f3b3c4027 (chore: update sponsored dst handler addresses (#2824)). Overall, this update strengthens cross-network interoperability and simplifies onboarding for new networks; no additional major bug fixes were required this month.
Monthly summary for 2025-11: Delivered targeted features and fixes across two repositories, strengthening user transparency, system reliability, and asset coverage. Coordinated across sdk and constants to extend Hyperliquid USD support and improve fee calculations, while addressing a critical circular dependency to sanitize the codebase.
Monthly summary for 2025-11: Delivered targeted features and fixes across two repositories, strengthening user transparency, system reliability, and asset coverage. Coordinated across sdk and constants to extend Hyperliquid USD support and improve fee calculations, while addressing a critical circular dependency to sanitize the codebase.
Month: 2025-10 | Across-protocol/frontend delivered key platform foundations enabling cross-chain token support, enhanced observability, and data reliability, with sustained improvements in swap reliability and testing. The work emphasizes business value through expanded token UX, improved price accuracy, and robust operational telemetry.
Month: 2025-10 | Across-protocol/frontend delivered key platform foundations enabling cross-chain token support, enhanced observability, and data reliability, with sustained improvements in swap reliability and testing. The work emphasizes business value through expanded token UX, improved price accuracy, and robust operational telemetry.
September 2025 monthly summary focusing on delivering business value and strengthening platform reliability across across-protocol/frontend, constants, contracts, and sdk. Highlights include price data integrations, performance optimizations, cross-chain bridge readiness with HyperEVM, and enhanced testing/CI stability. The month delivered a mix of user-facing capabilities, reliability improvements, and architectural groundwork enabling future expansions.
September 2025 monthly summary focusing on delivering business value and strengthening platform reliability across across-protocol/frontend, constants, contracts, and sdk. Highlights include price data integrations, performance optimizations, cross-chain bridge readiness with HyperEVM, and enhanced testing/CI stability. The month delivered a mix of user-facing capabilities, reliability improvements, and architectural groundwork enabling future expansions.
Month: 2025-08 Overview: Delivered high-impact features and reliability improvements across frontend, contracts, and SDK, driving trading robustness, deployment efficiency, and pricing data accuracy. Focused on real-user business value: improved swap reliability and configurability, expanded routing options, streamlined deployment, and robust price lookups.
Month: 2025-08 Overview: Delivered high-impact features and reliability improvements across frontend, contracts, and SDK, driving trading robustness, deployment efficiency, and pricing data accuracy. Focused on real-user business value: improved swap reliability and configurability, expanded routing options, streamlined deployment, and robust price lookups.
July 2025 monthly summary focusing on reliability, observability, and data-rich swap experiences across the Across Protocol frontend and SDK. Delivered end-to-end improvements that increase cross-chain swap reliability, reduce debugging time, and provide richer, more actionable swap data for product and business decisions. Key outcomes include more stable cross-chain routing, enhanced observability with OpenTelemetry, enriched swap quote responses with provider/source details, configurable quote fetch strategies, and robust gas pricing/estimation. These changes collectively reduce swap failures, shorten incident response, and enable data-driven pricing and routing improvements across chains.
July 2025 monthly summary focusing on reliability, observability, and data-rich swap experiences across the Across Protocol frontend and SDK. Delivered end-to-end improvements that increase cross-chain swap reliability, reduce debugging time, and provide richer, more actionable swap data for product and business decisions. Key outcomes include more stable cross-chain routing, enhanced observability with OpenTelemetry, enriched swap quote responses with provider/source details, configurable quote fetch strategies, and robust gas pricing/estimation. These changes collectively reduce swap failures, shorten incident response, and enable data-driven pricing and routing improvements across chains.
June 2025 performance summary for across-protocol repos focusing on reliability, cross-chain readiness, and expanded asset coverage. Key frontend improvements include environment-scoped cache namespaces to prevent cross-environment collisions, Cross-chain swaps infrastructure upgrades aligning with new SpokePoolPeriphery contracts, and enabling USDC-BNB for Hyperliquid. Price and configuration reliability were enhanced with SOL base currency support in CoinGecko integration and a hardened price/simulation pipeline that handles SOL/EVM addresses and missing token decimals in simulations. Remote config robustness was improved by correctly merging fixed and dynamic weights across relayers, and contract-address detection was refined with an ignore7702 flag to reduce false non-contract classifications. Additional frontend gains include CLI-based swap test scripting for parameterized flows and CODEOWNERS updates to speed reviews. On the relayer side, an ERC20 allowance handling fix resolves a TypeError during L1 withdrawals by ensuring allowance data is present in MinimalERC20 JSON. Overall these changes reduce error rates, broaden asset support, and accelerate safe releases while improving cross-repo collaboration and deployment stability.
June 2025 performance summary for across-protocol repos focusing on reliability, cross-chain readiness, and expanded asset coverage. Key frontend improvements include environment-scoped cache namespaces to prevent cross-environment collisions, Cross-chain swaps infrastructure upgrades aligning with new SpokePoolPeriphery contracts, and enabling USDC-BNB for Hyperliquid. Price and configuration reliability were enhanced with SOL base currency support in CoinGecko integration and a hardened price/simulation pipeline that handles SOL/EVM addresses and missing token decimals in simulations. Remote config robustness was improved by correctly merging fixed and dynamic weights across relayers, and contract-address detection was refined with an ignore7702 flag to reduce false non-contract classifications. Additional frontend gains include CLI-based swap test scripting for parameterized flows and CODEOWNERS updates to speed reviews. On the relayer side, an ERC20 allowance handling fix resolves a TypeError during L1 withdrawals by ensuring allowance data is present in MinimalERC20 JSON. Overall these changes reduce error rates, broaden asset support, and accelerate safe releases while improving cross-repo collaboration and deployment stability.
May 2025 performance summary: Across Protocol advanced cross-chain capabilities, expanded BSC and Lens chain integration, improved token recognition, and increased UI reliability, contributing to stronger liquidity access and reduced user friction across chains. Highlights include adding WETH symbol mapping on BSC, enabling USDC on Lens chain, completing BSC network integration (BNB/CAKE tokens, USDC/USDT variants) with improved decimal handling, refining balance sorting across decimals for more reliable chain selection, and extending USDC variants routing to GHO. In addition, targeted bug fixes and validation updates improved deposit accuracy, fee estimation, and capital cost configuration, helping reduce user errors and improve maintainers' confidence.
May 2025 performance summary: Across Protocol advanced cross-chain capabilities, expanded BSC and Lens chain integration, improved token recognition, and increased UI reliability, contributing to stronger liquidity access and reduced user friction across chains. Highlights include adding WETH symbol mapping on BSC, enabling USDC on Lens chain, completing BSC network integration (BNB/CAKE tokens, USDC/USDT variants) with improved decimal handling, refining balance sorting across decimals for more reliable chain selection, and extending USDC variants routing to GHO. In addition, targeted bug fixes and validation updates improved deposit accuracy, fee estimation, and capital cost configuration, helping reduce user errors and improve maintainers' confidence.
Concise monthly summary for 2025-04 focusing on Across Protocol frontend work. Key outcomes include Lens-integrated universal cross-chain swap framework with Lens support, universal swap routes, and GHO/WGHO configurations, plus enhanced route logic and new swap strategies enabling Lens-based cross-chain swaps and frontend universal route support. Notable deliverables include re-generating USDC→GHO swap routes, improved swap quote error handling, and the ability to fetch universal swap quotes when not connected. API surface expanded with outputAmount and allowUnmatchedDecimals. UI/UX improvements include pool symbol display prioritization in Liquidity Pool UI (EarnByStakingInfoBox and PoolSelector). Major bug fixes addressed pool symbol display and default route disconnected state. These efforts collectively advance cross-chain trading capabilities, reliability of swap routing, and user experience, while enhancing frontend architecture and API design.
Concise monthly summary for 2025-04 focusing on Across Protocol frontend work. Key outcomes include Lens-integrated universal cross-chain swap framework with Lens support, universal swap routes, and GHO/WGHO configurations, plus enhanced route logic and new swap strategies enabling Lens-based cross-chain swaps and frontend universal route support. Notable deliverables include re-generating USDC→GHO swap routes, improved swap quote error handling, and the ability to fetch universal swap quotes when not connected. API surface expanded with outputAmount and allowUnmatchedDecimals. UI/UX improvements include pool symbol display prioritization in Liquidity Pool UI (EarnByStakingInfoBox and PoolSelector). Major bug fixes addressed pool symbol display and default route disconnected state. These efforts collectively advance cross-chain trading capabilities, reliability of swap routing, and user experience, while enhancing frontend architecture and API design.
March 2025 highlights across Across Protocol projects: Key features delivered: - Relayer weight bug fix: default to zero address when no valid relayers exist, preventing errors in weighted random selection. - Custom RPC URL handling improvements: introduces a new environment variable namespace for overriding RPC URLs and updates provider resolution to prefer these custom URLs, ensuring the dApp uses specified public endpoints. - Comprehensive cross-chain swapping and quote enhancements: adds an approval swap flow with support for DEXs (1inch, Uniswap V3, Universal Router), enables exact-input cross-swap quotes, and introduces Uniswap quotes via SDK as an alternative source. - Modular relayer address management for per-chain/token configurations: refactors relayer address handling into a dedicated module to support per-chain and per-token configurations for default, full, and transfer-restricted relayers. - Observability upgrade: logging for suggested fees: raises log level from debug to info and stringifies the JSON payload for readable logs. Impact and capabilities: - System reliability improved, with safer relayer selection and more deterministic routing. - Expanded cross-chain coverage and configurable endpoints, reducing operational risk. - Enhanced observability enabling faster issue diagnosis. Technologies demonstrated: - Cross-chain swap orchestration with DEX integrations; exact-input quotes; SDK-based quote retrieval. - Environment-driven configuration and modular relayer architecture. - Improved logging/observability; Solana network and GHO gas token integration in separate modules.
March 2025 highlights across Across Protocol projects: Key features delivered: - Relayer weight bug fix: default to zero address when no valid relayers exist, preventing errors in weighted random selection. - Custom RPC URL handling improvements: introduces a new environment variable namespace for overriding RPC URLs and updates provider resolution to prefer these custom URLs, ensuring the dApp uses specified public endpoints. - Comprehensive cross-chain swapping and quote enhancements: adds an approval swap flow with support for DEXs (1inch, Uniswap V3, Universal Router), enables exact-input cross-swap quotes, and introduces Uniswap quotes via SDK as an alternative source. - Modular relayer address management for per-chain/token configurations: refactors relayer address handling into a dedicated module to support per-chain and per-token configurations for default, full, and transfer-restricted relayers. - Observability upgrade: logging for suggested fees: raises log level from debug to info and stringifies the JSON payload for readable logs. Impact and capabilities: - System reliability improved, with safer relayer selection and more deterministic routing. - Expanded cross-chain coverage and configurable endpoints, reducing operational risk. - Enhanced observability enabling faster issue diagnosis. Technologies demonstrated: - Cross-chain swap orchestration with DEX integrations; exact-input quotes; SDK-based quote retrieval. - Environment-driven configuration and modular relayer architecture. - Improved logging/observability; Solana network and GHO gas token integration in separate modules.
February 2025 monthly summary focusing on cross-chain expansion, reliability, and performance improvements across across-protocol repos. Delivered new cross-chain adapters and deployment readiness for the Doctor Who network, enabled Unichain Sepolia/testnet deployments, and upgraded release/CI processes for stable publishing. Strengthened routing UX for USDC bridging, completed Spoke Pool depositV3 upgrade, and introduced API changes with backward compatibility to optimize costs and reliability. Improved error handling and deposit safety, and completed rebranding efforts to align Doctor Who with Unichain branding.
February 2025 monthly summary focusing on cross-chain expansion, reliability, and performance improvements across across-protocol repos. Delivered new cross-chain adapters and deployment readiness for the Doctor Who network, enabled Unichain Sepolia/testnet deployments, and upgraded release/CI processes for stable publishing. Strengthened routing UX for USDC bridging, completed Spoke Pool depositV3 upgrade, and introduced API changes with backward compatibility to optimize costs and reliability. Improved error handling and deposit safety, and completed rebranding efforts to align Doctor Who with Unichain branding.
January 2025 — Delivered critical reliability, cross-chain support, and developer experience improvements across frontend and SDK. Key items include exposing fillDeadline API and aligning UI with server deadline, keeping /swap endpoints hot to improve swap reliability, upgrading the frontend data layer with React Query v5 and integrating Wagmi/Viem for multi-chain workflows, implementing cross-chain native token detection for bridging, and adding Lens testnet support with generic gas token handling in the SDK. These changes reduce client complexity, improve transaction success rates, enable rapid onboarding of new chains, and strengthen debugging and maintainability through better error handling and automated dependency management.
January 2025 — Delivered critical reliability, cross-chain support, and developer experience improvements across frontend and SDK. Key items include exposing fillDeadline API and aligning UI with server deadline, keeping /swap endpoints hot to improve swap reliability, upgrading the frontend data layer with React Query v5 and integrating Wagmi/Viem for multi-chain workflows, implementing cross-chain native token detection for bridging, and adding Lens testnet support with generic gas token handling in the SDK. These changes reduce client complexity, improve transaction success rates, enable rapid onboarding of new chains, and strengthen debugging and maintainability through better error handling and automated dependency management.
December 2024 (across-protocol/frontend): Reliability and UX improvements for staking-related flows. Delivered two key changes: 1) Cron Scheduler Stability Fix to ensure cron ping endpoints reliably run scheduled tasks, preserving uptime for background processes; and 2) Network Switching in Staking and Rewards, adding a 'Switch network' button to guide users to the correct network and reduce errors. These changes improve uptime, reduce support load, and enhance user experience in core staking/rewards workflows. Commits: 5a71a7a63c3e08a10ac128307d5d83989e67cfd9 (#1300) and a70e62c9053ebb997aa23def09bf56657a7d7644 (#1303).
December 2024 (across-protocol/frontend): Reliability and UX improvements for staking-related flows. Delivered two key changes: 1) Cron Scheduler Stability Fix to ensure cron ping endpoints reliably run scheduled tasks, preserving uptime for background processes; and 2) Network Switching in Staking and Rewards, adding a 'Switch network' button to guide users to the correct network and reduce errors. These changes improve uptime, reduce support load, and enhance user experience in core staking/rewards workflows. Commits: 5a71a7a63c3e08a10ac128307d5d83989e67cfd9 (#1300) and a70e62c9053ebb997aa23def09bf56657a7d7644 (#1303).
November 2024 performance summary: Delivered reliability, UX improvements, and platform stability across two repos (across-protocol/relayer and across-protocol/frontend). Key features and stability work focused on standardized error reporting, proactive endpoint health, and non-blocking UX signals, while bug fixes addressed caching correctness and validation behavior to reduce user impact and operational risk. The work contributed to higher API availability, clearer error visibility, and smoother user experiences in high-velocity product areas.
November 2024 performance summary: Delivered reliability, UX improvements, and platform stability across two repos (across-protocol/relayer and across-protocol/frontend). Key features and stability work focused on standardized error reporting, proactive endpoint health, and non-blocking UX signals, while bug fixes addressed caching correctness and validation behavior to reduce user impact and operational risk. The work contributed to higher API availability, clearer error visibility, and smoother user experiences in high-velocity product areas.
October 2024 monthly summary focused on targeted maintenance and cleanup in the across-protocol/frontend repository, delivering a deprecation cleanup for BOBA route configurations. The primary change disabled BOBA-related routes by clearing the pools array in enabledRoutes, aligning with the deprecation plan and reducing surface area for misconfigurations.
October 2024 monthly summary focused on targeted maintenance and cleanup in the across-protocol/frontend repository, delivering a deprecation cleanup for BOBA route configurations. The primary change disabled BOBA-related routes by clearing the pools array in enabledRoutes, aligning with the deprecation plan and reducing surface area for misconfigurations.

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