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Achievements

Achievement: YOLOAchievement: Pull Sharkx2Achievement: Starstruckx2Achievement: Quickdraw

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roswelly/README.md

Rust smart contract dev · backend engineer

prediction markets · web3 casino engines · trading automation infra

I build the infrastructure that connects onchain capital with probabilistic reasoning - from AMM protocols to fully automated market-making bots.

What I Work On

  • Prediction Market Protocols - AMM-based binary & scalar markets, LMSR pricing, permissionless resolution
  • Trading Automation - signal ingestion, position management, order routing, real-time risk controls
  • Web3 Casino Game Engines - Provably-fair casino infra on Solana with Switchboard + ORAO VRF. Baccarat, Blackjack, Crash, Plinko, Dice, Limbo, Mines, Coinflip, Slots, Jackpot. Cocos + Phaser frontends.
  • Market Making - liquidity provisioning, dynamic spread logic, inventory management on CLOB exchanges
  • DeFi Infrastructure - oracle aggregation, subgraph indexing, gas optimization

Open to collaborating on prediction market protocols, trading infrastructure, and mechanism design.

  • Smart Contracts - Rust · Anchor · SPL · Solidity
  • Backend - Rust (Axum, Tokio) · Go · TypeScript (Node) · gRPC · WebSocket · REST
  • Data - PostgreSQL · ClickHouse · Redis · Kafka
  • Onchain Infra - Geyser · Jito · Helius · Jupiter · Pyth · Switchboard · ORAO
  • Ops - Docker · Kubernetes · Grafana · Prometheus

Pinned Loading

  1. OpenZeppelin/openzeppelin-relayer OpenZeppelin/openzeppelin-relayer Public

    OpenZeppelin Relayer

    Rust 133 58

  2. solana-amm-dex-contract solana-amm-dex-contract Public

    Solana AMM DEX Smart Contract – A high-performance decentralized exchange (DEX) on Solana, combining an on-chain order book with Raydium’s AMM aggregator for optimal liquidity, best price execution…

    TypeScript 19 13

  3. solana-prediction-market-smart-contract solana-prediction-market-smart-contract Public

    solana prediction market smart contract - market creation, liquidity, order matching, oracle settlement, dispute system

    TypeScript 23 20

  4. solana-prediction-market-indexer solana-prediction-market-indexer Public

    End-to-end Solana prediction market stack: Anchor AMM program, chain indexer, REST/WS API, and automated trading bot.

    TypeScript 22 12

  5. pumpswap-migration-sniper pumpswap-migration-sniper Public

    pumpswap migration sniper bot - capture token migration to raydium cpmm on the same block

    TypeScript 19 10

  6. oracle-resolution-worker oracle-resolution-worker Public

    Oracle resolution worker for prediction markets: polls Pyth/Switchboard/sports feeds, settles markets, handles retries/disputes, and exposes health/metrics.

    TypeScript 2 2