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StefChatz/README.md

Hi there 👋

Senior Full-Stack Engineer building production DeFi protocols and high-performance trading systems. I combine deep technical expertise (React, Next.js, Node.js, NestJS, PostgreSQL, Cosmos SDK) with a Master's in Finance to ship end-to-end products across the Web3 stack.

Currently Co-Founder & Tech Lead at Hedgeway, Senior Full-Stack Developer at Mars Protocol (Delphi Digital) and Amber Finance. I also create educational DeFi & finance content in Greek on YouTube, making sophisticated financial concepts accessible to everyday people.


🔭 Projects Designed, Developed and Led

  • Hedgeway Delta-neutral yield protocol pairing DeFi yields with automated Hyperliquid hedges via senior/junior tranche vaults. I designed and built the full system:

    • Smart contract architecture: VaultFactory, TrancheVault, and Settlement Engine with Pendle PT-token integration
    • Node.js backend with PostgreSQL, Redis caching, and WebSocket feeds for live position monitoring
    • Real-time PnL computation and risk management across on-chain and off-chain components
    • Hyperliquid and Pendle protocol connectors for automated cross-protocol strategy execution
  • Amber Finance | Docs Bitcoin DeFi yield platform on Neutron blockchain. I own the complete stack:

    • Leveraged looping strategies (up to 10x) with real-time health factor monitoring and liquidation protection
    • Cross-chain bridge supporting 50+ blockchain networks via Skip Protocol integration
    • Web3 wallet connectivity layer supporting 8+ Cosmos wallets (Keplr, Leap, Cosmostation, etc.)
    • Backend integration layer handling routing logic, transaction tracking, and multi-chain state management
  • Delta-Mars Decentralized interface for deploying fully delta-neutral strategies on Neutron via Mars Protocol's Credit Manager:

    • Automatically balance lending positions with short perp trades to neutralize price exposure
    • Capture combined yield from lending APYs, perp funding rates, and incentive campaigns
    • Navigate market skew dynamics and optimize funding rate arbitrage
    • Real-time portfolio monitoring through a simple, intuitive UI
  • Lore Capital Delta-neutral yield fund delivering consistent, market-independent returns through DeFi strategies:

    • Total Annualized Return: 20% with 0.8% max drawdown
    • Sharpe Ratio: 14.35
    • Delta-neutral positioning across DeFi protocols to capture yield while minimizing directional exposure
    • Institutional-grade risk management with real-time monitoring and automated rebalancing

🛠 Open Source

  • Ares Terminal | aresfi.xyz Production-ready perpetuals trading terminal for DeFi protocols. Originally built as a standalone perps product for Mars Protocol, open-sourced under MIT license so teams can ship professional trading interfaces in days, not months.

    • Next.js 16, TypeScript, shadcn/ui, Zustand, wagmi, TradingView integration
    • Draggable/resizable panel layout, keyboard-first execution, sub-50ms renders
    • Mobile-responsive design with full order types: market, limit, stop, TP/SL
  • Hedgey CLI DeFi position analyzer and risk management tool built with Bun and TypeScript:

    • Analyze Aave lending positions across multiple EVM chains (Ethereum, Polygon, Arbitrum, Optimism)
    • Real-time health factor monitoring, liquidation risk scenarios, and loop detection
    • DeFi "Greeks" calculations (delta, gamma, vega, theta) for lending positions
    • Hedge analysis module integrating Hyperliquid perp data for delta-neutral assessment
  • Predator Universal prediction market arbitrage engine. TypeScript monorepo for cross-platform arbitrage:

    • Platform connectors for Polymarket (EIP-712 signing) and Kalshi (RSA auth) with WebSocket orderbook streams
    • 3-tier market matching pipeline: tokenized slug similarity, sentence-embedding cosine sim, LLM-based verification
    • Real-time execution engine with circuit breakers, in-flight deduplication, and configurable daily loss limits
    • Next.js dashboard with live opportunity feed, P&L tracking, and position management
  • DeFi Yield Aggregator Multi-chain backend platform for yield strategy discovery and computation:

    • NestJS backend with 15+ services: multi-source data ingestion (DeFiLlama, Pendle), leveraged strategy computation, risk scoring
    • PostgreSQL + TimescaleDB schema with Redis caching, Swagger-documented REST API, scheduled job processing
    • Docker-based infrastructure supporting Ethereum, Arbitrum, Base, Optimism, and Polygon

🤝 Projects Worked On as Core Contributor

  • Mars Protocol Sole engineer owning the full stack of Mars Protocol's Perpetual Futures trading platform (Delphi Digital):
    • Sub-50ms render-latency trading UI with Web Worker-based orderbook processing and SharedArrayBuffer state
    • WebSocket service with message batching, exponential-backoff reconnection, and multiplexed data channels
    • Backend integration for real-time price feeds, funding rate computation, and Cosmos SDK smart contract interaction
    • Perpetual derivatives features: margin engine, liquidation alerts, cross-collateral management

⚡ Tech Stack

Frontend      React · Next.js · Vite · TypeScript · Redux · Zustand · React Native · TailwindCSS · shadcn/ui
Build         Turborepo · pnpm · Bun · Vitest · GitHub Actions
Backend       Node.js · NestJS · Express · REST APIs · WebSocket Pipelines · GraphQL
Databases     PostgreSQL · TimescaleDB · Redis · Docker
Web3          Solidity · ethers.js · viem · wagmi · Cosmos SDK · CosmWasm · 50+ chain integrations

🎓 Education

MSc Finance - Alba Graduate Business School (2025) BSc Computer Science - University of Surrey (2020)


📫 Connect

LinkedIn Telegram Website Email

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  1. mars-protocol/mars-v2-frontend mars-protocol/mars-v2-frontend Public

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