DefiLlama/defillama-server
Dec 2025 – Dec 2025
1 Month active
Languages Used
TypeScript
Technical Skills
DeFiTypeScriptbackend developmentblockchain developmentdata managementfront end development
Jan-Henk Gerritsen
PROFILE
Jan-henk Gerritsen
J.H. Gerritsen developed and enhanced DeFi infrastructure across DefiLlama’s dimension-adapters, defillama-app, and defillama-server repositories over a two-month period. He replaced hardcoded fee logic in the Blackhole AMM with dynamic, blockchain-sourced calculations using TypeScript, improving revenue modeling and risk assessment. Gerritsen also refined fee tracking and revenue distribution for liquidity providers, implemented robust API endpoints for accurate block data retrieval, and updated branding and governance features to improve user trust. His work spanned backend and frontend development with React and Next.js, demonstrating depth in protocol design, smart contract integration, and data management to address evolving DeFi requirements.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
11Total
Bugs
2
Commits
11
Features
7
Lines of code
351
Activity Months2
Your Network
574 people
Work History
December 2025
10 Commits • 6 Features
Dec 1, 2025December 2025 performance highlights: delivered targeted features and fixes across three repos to improve data accuracy, user trust, and governance clarity. Notable outcomes include enhanced revenue-tracking and revenue-distribution logic in the Blackhole adapter, reliable block data retrieval for hydration, branding and UX improvements in the app, and governance-oriented URL health and transparency updates across the server components.
10 Commits • 6 Features
Dec 1, 2025December 2025 performance highlights: delivered targeted features and fixes across three repos to improve data accuracy, user trust, and governance clarity. Notable outcomes include enhanced revenue-tracking and revenue-distribution logic in the Blackhole adapter, reliable block data retrieval for hydration, branding and UX improvements in the app, and governance-oriented URL health and transparency updates across the server components.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11. Key feature delivered: Dynamic on-chain pool fees for Blackhole AMM in DefiLlama/dimension-adapters; replaced hardcoded fee values with blockchain-sourced values to improve accuracy and alignment with live data. Commit 454472769e394c3f0cc807d0b1bdbb55760b215c. No major bugs fixed this month; focused on feature delivery.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11. Key feature delivered: Dynamic on-chain pool fees for Blackhole AMM in DefiLlama/dimension-adapters; replaced hardcoded fee values with blockchain-sourced values to improve accuracy and alignment with live data. Commit 454472769e394c3f0cc807d0b1bdbb55760b215c. No major bugs fixed this month; focused on feature delivery.
Activity
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Quality Metrics
Correctness98.2%
Maintainability94.6%
Architecture94.6%
Performance96.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaScriptTypeScript
Technical Skills
API integrationDeFiDeFi protocolsNext.jsReactTypeScriptbackend developmentblockchain developmentdata managementfront end developmentprotocol designprotocol developmentsmart contract integration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
DefiLlama/dimension-adapters
Nov 2025 – Dec 2025
2 Months active
Languages Used
TypeScript
Technical Skills
DeFiTypeScriptblockchain developmentAPI integrationDeFi protocolsbackend development
DefiLlama/defillama-app
Dec 2025 – Dec 2025
1 Month active
Languages Used
JavaScriptTypeScript
Technical Skills
Next.jsReactTypeScriptfront end development