Blockchain Security Lead

## About the role The Blockchain Security Lead owns the security posture of on-chain systems and protocols across the organization. This role blends strategic leadership with deep hands-on expertise, overseeing a small team of blockchain security engineers while actively contributing to design reviews, threat modeling, and code audits. You'll partner closely with on-chain product and engineering teams to embed security into architecture, development, and operations—building scalable, reusable security controls that grow with the business. ## What You'll Do - Lead, mentor, and grow a team of blockchain security engineers. - Define and evolve the blockchain security strategy and roadmap. - Serve as a trusted security partner to product, protocol, and infrastructure teams. - Lead threat modeling and architecture reviews for on-chain systems. - Perform and guide security reviews and audits of smart contracts (Solidity, Rust/Solana) and backend services and supporting infrastructure. - Design and implement reusable security controls, patterns, and reference architectures. - Support secure deployment of cloud-native infrastructure (containers, Kubernetes). - Research emerging blockchain threats, exploits, and mitigations, and translate them into actionable controls. - Embrace and champion the thoughtful adoption of AI to improve team performance and business outcomes. - Leverage AI tools (e.g., generative AI, automation platforms, data copilots) to improve productivity, decision-making, and output quality in your day-to-day work. ## What We're Looking For - Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience) - 10+ years of security software engineering experience - 5+ years working with blockchain technologies - 5+ years working with smart contract security across multiple chains - Experience leading or mentoring a small, highly technical team - Published material on vulnerabilities/security bugs within the Web3 community - Expertise in secure SDLC, threat modeling, and application architecture review - Multi agent code reviews for vulnerabilities using frontier models - Secure coding practices and in-depth code review capability - Strong familiarity with smart contracts (Solidity, Rust), cloud-native environments (Docker, Kubernetes), authentication and authorization, TLS/PKI, and cloud, infrastructure, and network security - Clear, confident communicator across technical and non-technical audiences - Comfortable balancing hands-on execution with strategic ownership; detail-oriented, pragmatic, and strong in problem solving under ambiguity ## Nice to have - Direct exposure to Solana, staking systems, or similar Layer 1 protocols - Prior experience at a blockchain security audit firm (e.g., Trail of Bits, Halborn, Ottersec, Zellic) - Background in financial services or institutional crypto security - Familiarity with DeFi protocol security, key management, and custody architectures - Experience contributing to or leading security programs at a crypto exchange, protocol foundation, or digital asset firm ## What We Offer - Competitive base salary and discretionary bonus - Hybrid/Flexible Working Arrangements - Flexible Time Off (paid) - 3% 401(k) company contribution - Company-paid health and protective benefits for employees, partners, and other dependents - Generous paid Parental Leave - Competitive family planning benefits for US employees - Opportunities to learn about the Crypto industry - Smart, entrepreneurial, and fun colleagues - Free daily snacks and weekly breakfasts/lunches - Employee Resource Groups - Free coaching and counseling sessions through Headspace