Blockchain Security Lead

Remote. Posted 5 months ago

The role

The Blockchain Security Lead owns the security posture of on-chain systems and protocols. This role involves leading a small team of engineers and performing design reviews, threat modeling, and code audits.

What you will 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 and backend services.
Design and implement reusable security controls, patterns, and reference architectures.
Support secure deployment of cloud-native infrastructure.
Research emerging blockchain threats, exploits, and mitigations.
Embrace and champion the thoughtful adoption of AI to improve team performance.
Leverage AI tools to improve productivity and output quality.

Required qualifications

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

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

Benefits

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
Free daily snacks and weekly breakfasts/lunches
Employee Resource Groups
Free coaching and counseling sessions through Headspace

About the company

Galaxy Digital Inc. is a global leader in digital assets and data center infrastructure. The company delivers onchain infrastructure that connects institutions to digital assets and develops data center infrastructure to power AI and HPC workloads.