Blockchain Security Lead

As Blockchain Security Lead at Galaxy Digital, you own the security posture of on-chain systems and protocols across the organization. You blend 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 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 in Solidity and Rust/Solana, as well as backend services and supporting infrastructure
• Design and implement reusable security controls, patterns, and reference architectures
• Support secure deployment of cloud-native infrastructure such as containers and Kubernetes
• Research emerging blockchain threats, exploits, and mitigations, and translate them into actionable controls
• Champion the thoughtful adoption of AI to improve team performance and business outcomes, leveraging tools such as generative AI, automation platforms, and data copilots to enhance productivity, decision-making, and output quality

What you bring

• A 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 or security bugs within the Web3 community
• Expertise in secure SDLC, threat modeling, and application architecture review
• Capability in multi-agent code reviews for vulnerabilities using frontier models
• Strong secure coding practices and in-depth code review capability
• Deep familiarity with smart contracts in Solidity and Rust, cloud-native environments such as Docker and Kubernetes, authentication and authorization, TLS/PKI, and cloud, infrastructure, and network security
• Clear, confident communication across technical and non-technical audiences
• Ability to balance hands-on execution with strategic ownership, with strong attention to detail, pragmatism, and 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 such as Trail of Bits, Halborn, Ottersec, or 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 and flexible working arrangements
• Flexible paid time off
• 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 and lunches
• Employee Resource Groups
• Free coaching and counseling sessions through Headspace

About Galaxy Digital

Galaxy Digital Inc. (Nasdaq: GLXY) is a global leader in digital assets and data center infrastructure. The company delivers on-chain infrastructure connecting institutions to digital assets, including trading, advisory, asset management, staking, self-custody, and tokenization. Galaxy also develops and operates data center infrastructure to power AI and HPC workloads, anchored by its Helios campus in Texas with a multi-gigawatt pipeline of more than 5.7 GW of potential capacity. Headquartered in New York City, Galaxy has offices across North America, Europe, the Middle East, and Asia.