Senior Security Engineer, Enterprise

About the Role

We're growing our security team and looking for an engineer who can own a broad operational and technical scope: someone equally at home triaging an access request, running a security review, or building a custom testing framework. You'll report directly to the Head of Security, working closely to strengthen and scale our security posture across the organization.

What You'll Do

• Identity and access management: provisioning, lifecycle operations, and monitoring for critical changes
• Security reviews across our product portfolio: threat modeling, code review, fuzzing, and functional testing
• Day-to-day bug bounty operations: triage, remediation tracking, and escalation of high-severity findings
• AI security research and tooling: adversarial testing frameworks for agent controls, with a focus on reusable patterns
• Software supply chain monitoring: malicious package detection beyond standard CVE scanning
• External penetration test coordination: scoping, logistics, and post-engagement remediation tracking
• Compliance documentation and evidence gathering as requirements emerge

What We're Looking For

• A software engineering background is essential: you've built production systems, and that foundation shapes how you approach security
• You've since moved into product security and are fluent in the full lifecycle: threat modeling, secure design review, whitebox code review, and vulnerability testing * 5+ years of professional experience, with a meaningful portion in software engineering before transitioning into security
• Proficiency in at least one systems or backend language (Rust preferred; Go, C++, or Python also work). You will write code, build tooling, and read production codebases as a routine part of this role.
• Demonstrated experience in product or application security, not solely infrastructure- or compliance-focused roles
• Track record of building security tooling or automation from scratch
• Experience conducting or leading security reviews on production software systems
• Solid understanding of identity and access management concepts and tooling
• Genuine interest in AI security with the ability to build adversarial testing tooling
• A thoughtful approach to software supply chain risk beyond checkbox scanning
• Strong written communication: documentation is a real part of this job
• Comfortable with high ownership and working autonomously on a small team
• Experience in web3, crypto, or DeFi
• Bachelor's degree in Computer Science, Computer Engineering, or a related technical field

Nice to Have

• Hands-on experience with mobile device management (MDM) platforms and endpoint policy enforcement
• Familiarity with enterprise IAM systems and SSO: configuration, integration, and audit
• Experience with privileged access management (PAM) tooling and the operational patterns around it
• Strong Linux administration skills: comfortable at the command line, understanding of kernel-level security primitives, experience hardening Linux environments
• Experience with multisig schemes: signing policy design, quorum configuration, or key management in a production context
• Familiarity with hardware security modules (HSMs): integration, key lifecycle management, or operational use
• Exposure to trusted execution environments (TEEs): attestation, confidential compute, or secure enclave design

How We Work

• Remote-first, writing-heavy, and transparent by default: most decisions happen in public Slack channels, and everyone's voice carries.
• We value ownership, humility, curiosity, and getting it done over getting it perfect.
• Small egos, high standards.

What We Offer

Competitive compensation including salary and token incentives, the tools you need to do your best work, and a seat at the center of Solana's market infrastructure alongside some of the strongest engineers in the ecosystem.