Senior Information Security Engineer (Detection, Automation & AI)

Zoox; Foster City (CA); On-site; USD 190,000 - 228,000; Full time

Benefits offered by this job

Paid time off

Health insurance

Long-term disability insurance

Stock options / RSUs

Life insurance

Job summary

Zoox is seeking a Senior Information Security Engineer in Foster City, CA to shape security operations through engineering. You’ll build robust detection logic, automate workflows with SOAR, and integrate LLMs to improve incident response and triage.

If you enjoy Python, Linux, AWS, and treating security as code, this is your role. You will design detection logic, map to MITRE ATT&CK, and continuously tune alerts while guiding incident response across AWS and on‑prem environments.

Qualifications

• 8+ years in Information Security, Security Operations, or DevSecOps roles.
• Hands-on with SIEM tools like Splunk or ElasticSIEM for detection creation.
• Strong Python development and automation via APIs.
• Experience building automated playbooks in modern SOAR platforms.
• Practical experience with LLM APIs for security log analysis and triage.
• Solid understanding of AWS security services (GuardDuty, CloudTrail, IAM, VPC Flow Logs).

Responsibilities

• Design, build, test, and maintain detection logic within our SIEM platform.
• Map detections to MITRE ATT&CK for comprehensive visibility.
• Tune alerts to minimize false positives and alert fatigue.
• Architect automated playbooks in SOAR platforms to reduce MTTR.
• Develop Python tools and integrations using REST APIs to connect security tools.
• Apply LLMs to analyze, summarize and contextualize incoming alerts.
• Lead incident response guidance and secure workloads across AWS and on-prem environments.

Skills

Python

Splunk/ElasticSIEM

SOAR automation

LLM integration

AWS security

Incident response

Threat hunting

MITRE ATT&CK

Tools

Terraform

Job description

We are seeking a Senior Information Security Engineer who views security operations through an engineering lens. In this role, you won't just stare at a pane of glass watching alerts roll in; you will be the architect behind how those alerts are generated, triaged, and automated.You will lead our detection engineering efforts, build robust automation pipelines using SOAR and APIs, and pioneer the integration of Large Language Models (LLMs) to supercharge our incident response and alert-triage workflows. If you love Python, Linux, AWS, and treating security operations as code, this role is for you.

In This Role, You Will...

Detection Engineering & SIEM Operations

• Design, build, test, and maintain high-fidelity detection logic within our SIEM platform.
• Map detections to the MITRE ATT&CK framework to ensure comprehensive visibility across threat vectors.
• Continuously tune alerts to minimize false positives and reduce alert fatigue for the operations team.

Automation & Tooling (SOAR & APIs)

• Architect and implement automated playbooks within our SOAR platform to drive down Mean Time to Respond (MTTR).
• Develop custom Python scripts, tools, and integrations leveraging REST APIs to connect disparate security tools and data sources.
• Treat infrastructure and configuration as code, ensuring automated deployments and consistency.

Next-Gen Triage & AI Integration

• Design and implement workflows that leverage LLMs (Large Language Models) to automatically analyze, summarize, and add context to incoming security alerts.
• Build prompt engineering pipelines or agentic workflows that assist analysts during active investigations, drastically cutting down initial triage time.

Incident Response & Cloud Infrastructure

• Act as a senior escalation point for security incidents, guiding the team through containment, eradication, and recovery according to established Incident Response procedures.
• Monitor and secure workloads across AWS and on-premise environments with various operating systems.
• Conduct post-incident reviews to identify root causes and build automated preventions/detections to ensure the same incident doesn't happen twice.

Qualifications

• 8+ years of dedicated experience in Information Security, Security Operations, or DevSecOps engineering roles.
• Deep, hands-on experience with either Splunk (SPL, Enterprise Security) or ElasticSIEM (ES|QL, KQL, Kibana) for log analysis and detection creation.
• Strong proficiency in Python and a proven track record of building security tools, scripts, and automation pipelines via APIs.
• Proven experience designing and maintaining automated playbooks in a modern SOAR platform (e.g., Cortex XSOAR, Tines, etc.)
• Practical experience (or highly advanced personal projects) utilizing LLM APIs (e.g., OpenAI, Anthropic, AWS Bedrock) to ingest, process, or summarize textual data—specifically applied to security logs or triage workflows.
• Solid understanding of core AWS security services (GuardDuty, CloudTrail, IAM, VPC Flow Logs).
• Strong familiarity with industry-standard Incident Response lifecycles (NIST SP 800-61, SANS PICERL). Experience as an Incident Commander, Incident Handler strongly desired.

Bonus Qualifications

• Certifications such as CISSP, GCIA, GCIH, or AWS Certified Security - Specialty.
• Experience with Infrastructure as Code (IaC) tools like Terraform.
• Contributions to the open-source security community (tools, Sigma rules, etc.).

$190,000 - $228,000 a year

Base Salary Range

There are three major components to compensation for this position: salary, Amazon Restricted Stock Units (RSUs), and Zoox Stock Appreciation Rights. A sign-on bonus may be offered as part of the compensation package. The listed range applies only to the base salary. Compensation will vary based on geographic location and level. Leveling, as well as positioning within a level, is determined by a range of factors, including, but not limited to, a candidate's relevant years of experience, domain knowledge, and interview performance. The salary range listed in this posting is representative of the range of levels Zoox is considering for this position.

• Zoox also offers a comprehensive package of benefits, including paid time off (e.g. sick leave, vacation, bereavement), unpaid time off, Zoox Stock Appreciation Rights, Amazon RSUs, health insurance, long-term care insurance, long-term and short-term disability insurance, and life insurance.

About Zoox

Zoox is developing the first ground-up, fully autonomous vehicle fleet and the supporting ecosystem required to bring this technology to market. Sitting at the intersection of robotics, machine learning, and design, Zoox aims to provide the next generation of mobility-as-a-service in urban environments. We’re looking for top talent that shares our passion and wants to be part of a fast-moving and highly execution-oriented team.

Follow us on LinkedIn

Accommodations

If you need an accommodation to participate in the application or interview process please reach out to [e-mail] or your assigned recruiter.

A Final Note:

You do not need to match every listed expectation to apply for this position. Here at Zoox, we know that diverse perspectives foster the innovation we need to be successful, and we are committed to building a team that encompasses a variety of backgrounds, experiences, and skills.