Senior Blockchain / Smart Contract Engineer

**Job Description** We are building next-generation infrastructure focused on high-performance blockchain systems, secure protocol architecture, and scalable Web3 applications. Our team is working on advanced smart contract ecosystems, financial primitives, and production-grade distributed systems. We are looking for highly skilled engineers who are passionate about blockchain architecture, security, and performance optimization. **Key Responsibilities** - Design, develop, and deploy production-grade smart contracts - Architect scalable blockchain protocol infrastructure - Build secure and gas-optimized smart contract systems - Develop advanced tokenomics and liquidity mechanisms - Conduct deep testing including unit, integration, and fuzz testing - Ensure protection against common Web3 vulnerabilities and attack vectors - Collaborate with backend and frontend teams for seamless on-chain/off-chain integration - Build indexing pipelines and event-driven infrastructure - Optimize smart contract execution efficiency and transaction cost - Maintain strong documentation and engineering best practices **Required Technical Skills** Strong expertise in: - Rust - Move - Solidity Experience with: - Solana - Aptos - EVM ecosystems - Supra or similar blockchain infrastructures Hands-on experience with: - Foundry - Hardhat - Anchor Strong understanding of: - Distributed systems - Cryptography - Smart contract security - Blockchain consensus mechanisms Experience with: - PostgreSQL - The Graph - Off-chain indexers - Event processing systems Deep understanding of: - Gas optimization - State management - Smart contract lifecycle - Production deployment pipelines **Preferred Qualifications** 1. Experience shipping audited production smart contracts 2. Open-source blockchain contributions 3. Experience with DeFi protocols or token ecosystems 4. Understanding of MEV, liquidity systems, and advanced protocol mechanics 5. Prior experience working in fast-paced startup environments **What We Are Looking For** 1. Strong problem-solving mindset 2. Ownership-driven engineering attitude 3. High focus on security and scalability 4. Ability to work independently 5. Passion for Web3 innovation