Blockchain Security Expert – Chain Security Evaluation Track

Job Description: • Conduct in-depth security evaluations on blockchain nodes, validators, consensus mechanisms, mempool behavior, networking layers, and chain modules. • Review and analyze blockchain frameworks such as Cosmos SDK, CometBFT, Geth, Hyperledger, and other L1/L2/L3 infrastructures. • Identify security issues related to consensus safety, chain halting, permission models flaws, block production vulnerabilities. • Implement and run custom scripts and test scenarios to simulate real-world validator/network behaviors, chain stress conditions, and edge cases. Requirements: • Strong written and spoken English communication skills. • High diligence and strong attention to detail, especially in multi-step testing and long-running experiments. • Solid understanding of blockchain architecture and node internals (e.g., Cosmos SDK / CometBFT, Go-Ethereum (Geth) internals, and Hyperledger Fabric / Besu) • Strong scripting & automation skills with Python or Bash • Familiarity with Docker and containerized testing environments. • Prior experience in manual Web3 security auditing is preferred, but not required. Benefits: • medical, vision, and dental insurance • 401(k) plan with company matching • life and accidental death and dismemberment insurance • HSA (with high deductible plan) • FSA • flexible paid time off and holidays • variable commission program for business development sales roles Apply tot his job Apply To this Job