Security Engineer - Dragonfly Portfolio

Dragonfly is a crypto-native Venture Capital and research firm with $4B+ in assets under management and 160+ portfolio companies (see list). Our Talent team connects exceptional candidates with high-impact technical roles across our portfolio.
This is not a listing for an internal role at Dragonfly. This posting connects you directly with one or more of our portfolio companies actively hiring Security Engineers.
What We’re Looking For

• 2–5 years of experience in security engineering, operations, or infrastructure security, ideally across both cloud and crypto-native environments.
• Solid understanding of application, network, and blockchain security principles.
• Hands-on experience with SIEMs, EDR tools, or threat detection systems.
• Familiarity with GCP, AWS, or other production cloud environments, as well as containerized or distributed systems.
• Understanding of web3 security concepts such as multisig wallets, smart contract risks, validator security, and key management.
• Experience building or operating automated security monitoring and alerting pipelines.
• Strong scripting or automation skills (Python, TypeScript, or Go).
• Bonus: experience with security audits, compliance frameworks (SOC 2, ISO 27001, NIST CSF), or open-source security tools.

About the Role(s)Our portfolio companies are hiring across two main focus areas:Infrastructure-Focused Roles

• Secure and monitor blockchain infrastructure, nodes, and validators.
• Build and maintain security tooling for on-chain infrastructure, RPC endpoints, and key management systems.
  • Harden cloud and network environments, implement defense-in-depth for production systems, and manage secrets and access control.
  • Respond to infrastructure-level threats, analyze incidents, and improve detection coverage.

Application-Focused Roles

• Partner with smart contract and product teams to secure DeFi, wallet, or protocol codebases.
• Contribute to application-level threat modeling, auditing, and secure development practices.
• Develop internal tooling for vulnerability scanning, dependency management, and transaction monitoring.
• Work with on-chain analytics and incident response for protocol or user-level exploits.
• Even if you don’t match every point but are passionate about security in crypto, we encourage you to apply.

Process

• We’ll confidentially match you with portfolio companies aligned with your background, skill set, and interests.
• If mutual interest exists, we’ll facilitate a warm introduction.
• If there isn’t a match today, we’ll keep you top of mind for future opportunities.

Our portfolio companies are globally distributed, hiring for remote, hybrid, and in-person roles. They’re building across the full crypto ecosystem—including DeFi, CeFi, infrastructure, L1s and L2s, creator/consumer apps, ZK, and Crypto x AI.
All candidate submissions are strictly confidential.