Web3 Jobs in California, United States

AI & Blockchain Security Engineer

Hybrid (Bay Area)

About the Opportunity

We're partnering with an innovative technology company operating at the intersection of artificial intelligence, blockchain infrastructure, and cybersecurity.

As an AI & Blockchain Security Engineer, you'll help build next-generation security tooling that leverages AI to identify vulnerabilities, investigate threats, and improve security across modern blockchain ecosystems. This is a highly technical role suited to engineers who enjoy solving complex security challenges and pushing the boundaries of automation and AI-driven research.

What You'll Be Doing

• Design and develop AI-powered security tools for blockchain and smart contract analysis.
• Build intelligent systems capable of identifying vulnerabilities and security weaknesses across decentralized applications and protocols.
• Develop automated workflows for threat detection, exploit investigation, and security monitoring.
• Improve AI reasoning and analysis capabilities across large codebases, transaction flows, and blockchain activity.
• Work closely with security researchers, engineers, and infrastructure teams to strengthen security operations and incident response processes.
• Research emerging attack techniques, blockchain security trends, and advancements in AI-assisted security technologies.

What We're Looking For

Essential

• Degree in Computer Science, Cybersecurity, Artificial Intelligence, Blockchain, or a related field.
• Hands-on experience in one or more of the following:
• Blockchain Security
• Smart Contract Auditing
• Vulnerability Research
• Offensive Security
• Strong understanding of blockchain architecture, smart contract execution, and transaction analysis.
• Knowledge of common Web3 security vulnerabilities and attack vectors.
• Experience with security investigations, exploit analysis, threat detection, or vulnerability assessment.
• Strong analytical and problem-solving skills.
• Passion for emerging technologies, AI, and blockchain security.

Nice to Have

• Experience building AI agents, LLM-powered applications, security copilots, or automated research tools.
• Understanding of cryptographic concepts including digital signatures, hashing, Merkle Trees, MPC, consensus mechanisms, or zero-knowledge technologies.
• Familiarity with EVM internals, DeFi protocols, cross-chain ecosystems, or blockchain infrastructure.

Why Join?

• Work on cutting-edge AI and blockchain security challenges.
• Collaborate with highly technical security researchers and engineers.
• Opportunity to influence the future of AI-assisted cybersecurity.
• Fast-paced environment with significant scope for innovation and ownership.
• Exposure to some of the most advanced security problems in the Web3 ecosystem.