Software Security Engineer - Dragonfly Portfolio

Location: New York City

Department: Portfolio

Location Type: IN_OFFICE

Employment Type: FULL_TIME

• Designing and operating security infrastructure across cloud, network, and production environments
• Building and managing PKI, certificates, authentication, and key management systems
• Designing secure network architecture, segmentation, private connectivity, and zero-trust systems
• Owning IAM, secrets management, cloud KMS, HSMs, and access controls
• Implementing secure API infrastructure, request signing, replay protection, and audit logging
• Building security monitoring, anomaly detection, and incident response processes
• Partnering with Engineering and Infrastructure teams to identify and address security risks
• Managing penetration testing, vulnerability assessments, and remediation
• Supporting security audits and compliance programs such as SOC 2 and ISO 27001
• Building security processes and infrastructure from the ground up in early-stage environments
• Collaborating on smart contract, blockchain, wallet, custody, or other crypto-specific security systems

What portfolio companies are generally looking for

• Strong experience building or operating production security systems
• Deep understanding of network, infrastructure, cloud, or application security
• Experience with areas such as PKI, IAM, secrets management, HSMs, KMS, network segmentation, or zero-trust architecture
• Comfort owning security projects end-to-end and working directly with engineering teams
• Ability to operate in fast-moving environments where security infrastructure is still being built
• Strong attention to detail and understanding of how security decisions affect production systems
• Experience responding to incidents, managing audits, or working with external security partners
• Ability to work across technical and non-technical teams

Nice to have

• Experience at a crypto, fintech, payments, trading, custody, or financial infrastructure company
• Experience working with regulated financial institutions or institutional counterparties
• Familiarity with smart contract or blockchain security
• Experience with cryptographic signing, attestation, or multi-party signing systems
• Experience with SOC 2, ISO 27001, penetration testing, or security audits
• Previous experience as an early or founding security engineer

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

• Early / Mid: $120,000–$175,000
• Senior: $175,000–$225,000
• Staff / Lead / Founding: $200,000–$300,000+