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Blockchain Security Lead Full-time/Company: Galaxy Galaxy is a global leader in digital assets and data center infrastructure, building products and services that span trading, investment banking, asset management, staking, self-custody, and tokenization technology. Led by Michael Novogratz, the company operates at the intersection of finance and technology to support institutions, startups, and developers in the digital asset and AI space. Responsibilities: - 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 - Design and implement reusable security controls, patterns, and reference architectures - Support secure deployment of cloud-native infrastructure (containers, Kubernetes) and research emerging blockchain threats Requirements: - Bachelor’s degree in Computer Science, Engineering, 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, including multi-agent code reviews using frontier models 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 Stack: Solidity, Rust, Solana, Docker, Kubernetes, TLS/PKI, authentication & authorization, cloud infrastructure, network security Benefits: - Competitive base salary and discretionary bonus - Hybrid/Flexible working arrangements and Flexible Time Off (paid) - 3% 401(k) company contribution - Company-paid health and protective benefits for employees and dependents - Generous paid Parental Leave and competitive family planning benefits (US employees) - Opportunities to learn about the Crypto industry and work with smart, entrepreneurial colleagues - Free coaching and counseling sessions through Headspace 📩 Apply