Fieldguide

Lead Security Engineer

Fieldguide

full-time

Posted on:

Location Type: Remote

Location: CaliforniaUnited States

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Salary

💰 $210,000 - $260,000 per year

Job Level

Tech Stack

About the role

  • Lead secure design reviews, threat modeling, and security-focused code reviews across the product and platform.
  • Ensure security is ingrained into the SDLC so that the secure path is the easy path for engineers with secure-by-default libraries, patterns, and guardrails.
  • Own authentication, authorization, API security, and data protection architecture for a multi-tenant SaaS platform.
  • Architect and maintain security tooling integrated into CI/CD pipelines: static analysis, dependency scanning, secrets detection.
  • Evaluate and mitigate risks specific to Fieldguide's AI Agents — prompt injection, data leakage through LLM contexts, unauthorized tool use, and unintended agent behaviors.
  • Partner with Agent and Platform teams to define security boundaries for agent execution: sandboxing, least-privilege tool access, and runtime policy enforcement.
  • Build and run Fieldguide’s vulnerability management program: scanning, triage, SLA-driven remediation tracking, and engineering coordination.
  • Ensure visibility into vulnerability posture across application code, dependencies, and infrastructure.
  • Manage external penetration testing engagements, bug bounty programs, and coordinate remediation of findings.
  • Partner with infrastructure engineering to review and improve cloud security across our AWS environment: IAM, network architecture, secrets management, and logging.
  • Establish runbooks, communication protocols, and post-incident review practices in coordination with a 24/7 MDR team.
  • Collaborate with engineers on incident response processes and playbooks.
  • Partner with Compliance to ensure technical controls satisfy framework requirements (SOC 2, ISO 27001, ISO 42001, FedRAMP).

Requirements

  • 8+ years in security with a primary background in application security, product security, or security-focused software engineering.
  • Track record of building or significantly maturing a security program, ideally at a growth-stage SaaS company.
  • Strong programming skills with demonstrated experience writing production software.
  • Familiarity with AWS security services and patterns: IAM, VPC, CloudTrail, KMS.
  • Experience with threat modeling methodologies and secure design review processes.
  • Experience managing external penetration tests and coordinating remediation.
  • Familiarity with AI/LLM security considerations and emerging risks in agentic AI systems is a plus.
  • Experience supporting compliance frameworks (SOC 2, ISO 27001, NIST, FedRAMP) from the technical controls side is a plus.
Benefits
  • Competitive compensation packages with meaningful ownership
  • Flexible PTO
  • 401k
  • Wellness benefits
  • Technology & Work from Home reimbursement
  • Flexible work schedules
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
application securityproduct securitysecurity-focused software engineeringthreat modelingsecure design reviewvulnerability managementincident responseprogrammingAPI securitydata protection architecture
Soft Skills
leadershipcollaborationcommunicationproblem-solvingrisk assessmentcoordinationorganizational skillsincident managementstakeholder engagementprocess improvement
Certifications
SOC 2ISO 27001ISO 42001FedRAMPNIST