Senior Software Security Engineer

Senior Software Security Engineer Our customers hand us their most sensitive audit and compliance data, and our product is built around trust. That means our own security practices are core to what we promise them. The Information Security & Compliance team protects Fieldguide's systems and earns that trust every day. As one of the first dedicated security hires, you'll help build the security function from the ground up. As a Senior Software Security Engineer, you will make the secure path the easy path for every Fieldguide engineer. You'll range across secure design, identity and secrets management, infrastructure security, and agentic AI security. We prioritize around the biggest risks rather than fixed specialties, so your focus will shift over time. You'll report to our Lead Security Engineer and work closely with both Product and Platform teams. Our StackCloud & Infra: AWS, Kubernetes, Terraform Application: Python, TypeScript, GraphQLAI: LLM gateway and agent orchestration across multiple model providers Security Tooling: Socket, Chainguard, GitHub Advanced Security, frontier cyber models What You'll OwnPartnering with engineering to find the biggest risks in a system before it ships, and building secure frameworks and libraries that make control adoption the path of least resistance. Building and maintaining identity and secrets management systems, including credential issuance, rotation, and workload authentication. We're moving towards short-lived, workload-based identity across our cloud and Kubernetes environments. Hardening our cloud security controls and contributing to continuous cloud security posture management through infrastructure-as-code scanning, misconfiguration detection, and automated remediation. Building the security model for AI agents that perform audit work. You'll design permission boundaries that enforce what agents can see and do, harden them against prompt injection in untrusted documents, and ensure strict tenant isolation across our agentic platform. Raising the security bar across engineering through design reviews and coaching, helping teams build securely without a gate in the way.