Shiba Inu-themed multiplayer crash game with on-chain settlement and provably-fair rounds. Built with: Solidity · ethers.js · Node.js · WebSockets · provably-fair commit-reveal

• Multiplayer realtime crash rounds
• On-chain settlement + provably-fair engine
• Full-stack: contracts, backend, frontend

Realtime lip-synced NFT avatars driven by ML inference from speech/audio input. Built with: realtime · ML inference · NFT assets

• Avatar NFTs driving lipsync animation
• ML inference pipeline from audio
• Realtime playback

Proprietary work — not open source. Architecture and impact bullets only.

Solana mempool sniping bot + EVM contract deployer. Shipped 12+ mainnet contracts.

• Solana RPC (Helius) mempool monitoring + bundle submission; sub-200ms snipe latency
• Contract deployer in Foundry (forge scripts) + ethers.js; full unit + fuzz coverage via forge test
• Cut average time-to-snipe from ~3s to ~180ms

Full-stack multi-chain gaming platform with mini games, deployed as Telegram Mini App.

• ERC-721 game items via OpenZeppelin UUPS upgradeable proxy; EIP-712 meta-transactions
• Hardhat + Foundry dual toolchain; invariant tests, gas reporting, Slither in CI
• Custom HD Wallet (BIP-32/39/44) from scratch — no external key-management API
• Provably-fair commit-reveal (SHA-256) with auditable server seeds
• Multiplatform Flutter app (Android, iOS, Windows, macOS, Linux); led team of 6

Bitcoin casino built end-to-end from scratch: algorithm design, custody, server architecture.

• Provably-fair scheme (commit-reveal, seeded RNG) — every roll player-verifiable
• Cold/hot wallet custody; hardened against XSS, SQLi, timing attacks
• Shipped a SaaS no-code casino variant

Statistical-arbitrage + on-chain whale-tracking strategies across CEX/DEX venues.

• Whale-tracking: label wallets, follow transfers, replicate positions with risk caps
• GitHub scraper correlating contributor activity across Web3 repos for pre-launch signals
• Backtested on 18 months of data; ~62% hit rate on early signals

Blockchain / Web3 Solidity · Foundry · Hardhat · OpenZeppelin (UUPS, AccessControl) · Slither · ethers.js · Web3.js · EIP-712 · EIP-1559 · ERC-721/1155 · Bitcoin RPC · HD Wallets (BIP-32/39/44) · provably-fair commit-reveal

Backend Node.js (10+ yrs) · Python · Bash · Koa.js · Express.js · microservices · state machines · WebSockets

Frontend React.js (10+ yrs) · Next.js (4 yrs) · Redux · Cerebral.js · TypeScript · Flutter/Dart · Angular

Cloud & DevOps AWS (10+ yrs) · Digital Ocean · Lambda · ECS · Kubernetes · Docker · Docker Swarm · Serverless Framework · CI/CD

Databases PostgreSQL · MongoDB · Redis · MySQL · CouchDB

AI LLM agents · Groq · prompt routing · tool-calling

Security Smart-contract review (Slither) · XSS/SQLi/timing-attack hardening · PII encryption · cold/hot wallet ops

• Bitcoin-Payments — Bitcoin payment processor with HD wallet custody via OpenBazaar SPV · Go · JS · Docker
• notification-microservice — push/email/SMS/voice microservice with templates, webhooks, and tagging · Node.js · PostgreSQL
• koa-joi-bouncer — HTTP parameter validation library for Koa.js apps · npm package
• google-ads-mcp — MCP server for Google Ads · Python
• What-the-Fuck-is-Node.js — Node.js course taught to engineering interns — mentorship/teaching

• Email: reuben1987ai@gmail.com
• X: @GulfOfCrypto