Security Engineer, Blockchain

Experience with Solidity security and understanding of the Ethereum Virtual Machine (EVM). Familiarity with common smart contract vulnerabilities, reentrancy attacks, and DeFi security patterns. Proficiency in at least one systems programming language (Go, Rust, C++, or similar) with understanding of blockchain development frameworks. Experience with blockchain node operations, RPC interfaces, or consensus protocol implementations. Understanding of Layer 1 and Layer 2 blockchain architectures, including rollup technologies (optimistic and ZK), state channels, or sidechains. Basic familiarity with consensus mechanisms like Proof of Stake, PBFT, or Tendermint, and blockchain finality concepts. Interest in reviewing blockchain infrastructure, including validator nodes, bridge contracts, oracle integrations, or cross-chain communication protocols. Experience with security analysis, vulnerability assessment, or penetration testing. Familiarity with automated security tools, fuzzing techniques, or static analysis methodologies applied to blockchain systems.

Reviewing blockchain applications for security vulnerabilities using both manual analysis and automated tools. Focusing primarily on smart contract security while gaining exposure to broader blockchain ecosystems and infrastructure components. Collaborate with leading teams in the blockchain industry to review their smart contracts, off-chain components, and blockchain infrastructure. Work with existing blockchain security tools using modern software engineering practices. Contribute to automated analysis tool integration and custom rule development. Design and implement solutions for security vulnerabilities in blockchain systems. Build foundational knowledge in blockchain security practices through hands-on experience with L1/L2 networks, finality assumptions, and emerging blockchain architectures.