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SigmaSigmaSan Francisco, CA

Senior Security Engineer

Senior Security Engineer building and scaling security platforms, AI/LLM security controls, detections-as-code, and automation across cloud and SaaS environments. Requires 5+ years hands-on security engineering experience and strong Python/cloud skills.

175k – 220k/yr
On-site5+ YOESecurity Engineering

About the role

What You’ll Do

Security Engineering

  • Design, build, and maintain security platforms, services, APIs, automation, and internal tooling.
  • Develop solutions that streamline Cloud vulnerability management, Network Security, Detection engineering, Incident response, access governance, and security operations.
  • Use software engineering principles to build detections-as-code, security workflows, internal platforms, and scalable security services.
  • Leverage AI extensively to accelerate investigations, automate workflows, improve decision making, and reduce operational overhead.

AI & LLM Security

  • Design and implement security controls for AI applications, LLM-powered services, agents, and AI development workflows.
  • Build guardrails and security tooling to identify and mitigate risks such as prompt injection, data leakage, model misuse, excessive permissions, insecure plugins, and unsafe AI interactions.
  • Develop monitoring, detection, and response capabilities for AI systems and AI-generated content.
  • Partner with product and engineering teams to securely enable AI innovation across the organization.

Identity & SaaS Security

  • Build and maintain detections-as-code across cloud, identity, endpoint, SaaS, and application environments.
  • Design and implement security controls across SaaS platforms, workforce identities, privileged access, and machine identities.
  • Partner with engineering teams to implement secure-by-design architectures and security best practices.
  • Perform architecture reviews and threat modeling for cloud services, AI-enabled applications, APIs, and infrastructure changes.

Security Innovation & Automation

  • Continuously identify opportunities to leverage AI, automation, and modern engineering practices to solve security challenges.
  • Develop custom security tools, dashboards, APIs, services, and integrations.
  • Evaluate emerging technologies and drive adoption where they provide measurable security and operational value.

What We’re Looking For

Required Qualifications

  • 5+ years of hands-on experience in Security Engineering or related cybersecurity roles.
  • Bachelor or Masters in Computer Science, Cyber Security or similar.
  • Strong software engineering mindset with demonstrated experience building production-grade tools, automation, and security platforms.
  • Proven ability to build versus buy whenever practical and create scalable internal solutions.
  • Strong proficiency in Python or similar languages, with experience building tools, using open source, APIs, automation, and cloud-native services.
  • Strong understanding of cloud architecture, identity systems, networking, operating systems, and modern security principles.
  • Experience leveraging AI to transform security operations and engineering workflows.
  • Hands-on experience securing AWS, Azure, or GCP environments.
  • Experience with SIEM, EDR, WAF, Network Security, Cloud security, SaaS security, IAM, and Security monitoring technologies.
  • Strong analytical, communication, and problem-solving skills.

Preferred Qualifications

  • Experience building internal security products, platforms, and developer-focused security tooling.
  • Strong understanding of AI/LLM technologies, AI security risks, and secure AI development practices.
  • Knowledge of Zero Trust, modern identity architectures, and cloud-native security controls.
  • CISSP, CCSP, GCIH, GCFA, or equivalent certifications.

Compensation & Benefits

  • Base salary range: $175k - $220k annually.
  • Eligible for stock options and comprehensive benefits package.
  • Equity, generous health benefits, flexible time off, paid bonding time, 401k, commuter and FSA benefits, lunch program.

Skills

PythonAWSAzureGCPSIEMEdrWafIAMCloud SecurityAi SecurityLlm SecurityDetections-As-CodeThreat ModelingZero Trust
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