Blockchain Security Lead

Who You Are:

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

Bonus Points: 

• 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

Apply now and join us on our mission to engineer a new economic paradigm.