Blockchain Security Expert - Chain Security Evaluation Track

About the Role

Requirements

• Strong written and spoken English communication skills
• High diligence and strong attention to detail for multi-step testing and long-running experiments
• Solid understanding of blockchain architecture and node internals (e.g., Cosmos SDK, CometBFT, Go-Ethereum/Geth, Hyperledger Fabric/Besu)
• Strong scripting and automation skills with Python or Bash
• Familiarity with Docker and containerized testing environments
• Prior experience in manual Web3 security auditing preferred but not required

Responsibilities

• Conduct in-depth security evaluations of blockchain nodes and validators
• Analyze consensus mechanisms, mempool behavior, networking layers, and chain modules
• Review and analyze blockchain frameworks such as Cosmos SDK, CometBFT, Geth, Hyperledger Fabric, and Besu
• Identify security issues related to consensus safety, chain halting, permission model flaws, and block production vulnerabilities
• Implement and run custom scripts and test scenarios to simulate validator and network behaviors, chain stress conditions, and edge cases

Benefits

• Medical insurance
• Vision insurance
• 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
• Holidays
• Variable commission program for business development sales roles

Skills