Security Product Engineer

We believe that software is the foundation of modern civilization. Yet vulnerabilities threaten its integrity, security, and resilience. We are on a mission to secure the world's software.

depthfirst is building intelligence to detect and remediate critical software vulnerabilities. We are training and scaling security AI agents to discover zero-days vulnerabilities across large customer codebases and popular open source software.

Our founding team includes deep expertise in data, infrastructure, security and LLMs with technical leaders from DeepMind, Databricks, Square, and Faire. We are looking for strong technical people who are interested in working at the intersection of AI, Security, and Infrastructure.

We're looking for a Security Product Engineer to work directly with customers to deploy and operationalize depthfirst's security AI agents in their environments. You'll be the technical bridge between our product and enterprise security infrastructure, ensuring our AI successfully detects vulnerabilities at scale.

You'll embed with customers to understand their security challenges, build custom integrations on top of depthfirst's platform, and partner closely with our product team to generalize solutions. This role combines hands-on engineering with deep customer collaboration—you'll shape both how customers use depthfirst and how our product evolves.

• Embed with enterprise customers to deploy depthfirst's security AI agents into production environments

• Build deep relationships with security teams, becoming a trusted advisor who understands their challenges

• Translate customer problems into solutions: build custom integrations, data pipelines, and workflows that connect depthfirst with existing security tools

• Bridge the gap between customers and product—identify patterns across deployments and collaborate with product to turn one-off solutions into platform capabilities

• Communicate clearly with diverse stakeholders, from security engineers to CISOs

• Own end-to-end technical delivery: from scoping to implementation and optimization

• Travel to customer sites as needed to drive successful outcomes

• 3+ years of software engineering experience or relevant expertise

• Excellent communication skills and genuine interest in working closely with customers to solve their problems

• Experience in application security, penetration testing, or security research

• Experience bridging customer needs and product capabilities, with a track record of collaborating with product teams to generalize solutions

• Experience with security tooling, vulnerability management, or security-focused engineering

• Proficiency in Python and experience building integrations, APIs, and data pipelines

• Strong problem-solving skills with a bias toward action

• Excitement about AI and security

• Based in or willing to relocate to San Francisco

• Experience with LLMs, AI agents, or AI platforms

• Familiarity with enterprise security infrastructure (SIEM, SOAR, vulnerability management platforms)

• Prior experience as a solutions engineer, security engineer, or forward deployed engineer

• Open source contributions or experience with large codebases