Security Engineer

Join Lambda Security, a company dedicated to protecting valuable digital assets in the AI industry. As a Security Engineer, you will work on various aspects of the security program, including building detections, hardening infrastructure, reviewing designs, automating tasks, and responding to incidents. You will have the opportunity to shape the security posture that customers rely on and directly impact customer trust and enterprise revenue.

• Participate in on-call, lead investigations end-to-end, and turn each incident into automation, playbooks, or controls that prevent the next one.
• Develop and refine detection content across our SIEM and EDR to catch threats targeting customer data, model weights, and infrastructure.
• Provide actionable security feedback on high-level designs and individual changes, and turn recurring review patterns into reusable standards.
• We value diverse backgrounds, experiences, and skills, and we are excited to hear from candidates who can bring unique perspectives to our team. If you do not exactly meet this description but believe you may be a good fit, please still apply and help us understand your readiness for this role. Your application is not a waste of our time
• Comfortable solving problems in Python, Go, or a similar language, with the discipline to ship production-grade tooling rather than only one-off scripts
• Excellent collaboration with technical teams both with and without authority (we're all on the same team!)
• 5+ years of demonstrated security engineering experience, either directly as a security engineer or as an engineer driving security outcomes. We also welcome equivalent backgrounds: significant formal security training paired with strong engineering experience
• Thrives in high-speed, high-ambiguity startup environments where priorities shift regularly and structure must be built while executing
• Strong hands-on Linux experience that showcases your ability to protect both our applications and the cloud we build underneath them
• A track record of working across security domains; for example, shipping detection work in one role and architecture, platform, or vulnerability management work in another. We don't expect mastery of every domain; we do expect demonstrated breadth and eagerness to learn
• You've led or developed a meaningful component of a security program (detection & response, security architecture, platform/tooling, vulnerability management, GRC operations, etc.)
• Experience driving or providing significant evidence for compliance audits such as SOC 2, ISO 27001, PCI-DSS, HIPAA/HITECH, or FedRAMP
• Significant experience operating large-scale production services (e.g., SRE across thousands of hosts) or with virtualization at scale (KVM, Hyper-V, Xen)
• You've built or deployed critical security infrastructure such as SIEM, SOAR, EDR, IDS/IPS, or canary/honeypot systems
• Experience with AI/ML infrastructure security, model security, or protecting high-value computational workloads
• Enthusiasm about leveraging direct access to state-of-the-art LLMs to push security operations beyond the status quo, including through automated triage, intelligent alert correlation, AI-assisted code review
• You do not need to match all of the listed expectations to apply for this position. We are committed to building a team with a variety of backgrounds, experiences, and skills