blockchain security engineer for on-chain systems

Galaxy delivers on-chain infrastructure connecting institutions to digital assets, including trading, advisory, asset management, staking, self-custody, and tokenization. It also develops and operates data center infrastructure for AI and HPC workloads.

• Lead, mentor, and grow a team of blockchain security engineers
• Define and evolve the blockchain security strategy and roadmap
• Partner with product, protocol, and infrastructure teams as a trusted security advisor
• Lead threat modeling and architecture reviews for on-chain systems
• Perform and guide security reviews and audits of smart contracts and backend services and supporting infrastructure
• Design and implement reusable security controls, patterns, and reference architectures
• Support secure deployment of cloud-native infrastructure, including containers and Kubernetes
• Research emerging blockchain threats, exploits, and mitigations, and translate them into actionable controls
• Champion thoughtful AI adoption to improve team performance and business outcomes
• Use AI tools, including generative AI, automation platforms, and data copilots, to improve productivity, decision-making, and output quality

• 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
• Experience with 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 communication with technical and non-technical audiences
• Ability to balance hands-on execution with strategic ownership; detail-oriented, pragmatic, and effective at problem-solving under ambiguity
• Будет плюсом: direct exposure to Solana, staking systems, or similar Layer 1 protocols; experience at a blockchain security audit firm; a financial services or institutional crypto security background; 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

• Competitive base salary and discretionary bonus
• 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