Blockchain Security Expert - Chain Security Evaluation Track

Role overview Evaluate the security of blockchain infrastructure, from nodes and validators to consensus, networking, and chain modules. The work involves reviewing blockchain frameworks, investigating failure and attack scenarios, and using scripts and controlled tests to probe real-world behavior and edge cases.

Responsibilities - Assess nodes, validators, consensus mechanisms, mempool behavior, networking layers, and chain modules. - Review blockchain frameworks and infrastructure across Layer 1, Layer 2, and Layer 3 systems. - Investigate risks to consensus safety, chain availability, permission controls, and block production. - Write and run scripts and test scenarios that simulate validator and network behavior, stress conditions, and edge cases.

Requirements - Strong written and spoken English. - Careful attention to detail, including for multi-step testing and extended experiments. - Understanding of blockchain architecture and node internals, including relevant client and framework implementations. - Scripting and automation skills using Python or Bash. - Familiarity with Docker and container-based test environments.

Nice to have - Manual Web3 security auditing experience; this is preferred but not required.

Benefits and work setup The role offers a flexible work environment and collaboration with security researchers, technologists, and institutions. For roles performed in the US, the stated target annual compensation is $120,000–$180,000, depending on qualifications and experience. Full-time benefits include medical, vision, and dental coverage; retirement plan matching; insurance; health and dependent-care accounts; and flexible paid time off and holidays.