Senior Software Engineer with 15+ years in web development, currently specializing in
AI Engineering, Autonomous AI Agents, Blockchain Infrastructure, and Smart Contract Security.
I work at the intersection of AI systems and decentralized infrastructure, building secure, intelligent, and scalable applications that operate across on-chain and off-chain environments.
- AI Engineering and Autonomous AI Agents
- Smart Contracts on Sui, Near,Solana and EVM-based chains
- Blockchain and Web Security
- Secure on-chain automation and protocol design
Languages
- JavaScript / TypeScript (Core expertise)
- Rust, Move, Solidity (Active specialization)
- PHP, C#, Python, Java, Kotlin, Dart (Previous production experience)
Web & App
- Node.js, Bun, Elysia.js
- Next.js, Vue, Angular, Svelte, React
- React Native
Blockchain
- Smart Contracts (Sui, Near, Solana, EVM)
- Security, auditing, and attack surface analysis
- AI-driven on-chain and off-chain automation
- rubenmarcus.sol
- rubenmarcus.sui
- rubenmarcus.eth
- rub3n.near