Remote Senior SIEM & XDR Engineer, Cortex/XSIAM

Computer Aid; Pennsylvania; Remote; USD 120,000 - 160,000; Full time

Job summary

Computer Aid is seeking a Senior SIEM Engineer to design, implement, and optimize Palo Alto Cortex XSIAM/XDR and Cribl solutions in a large-scale 24x7 SOC. You will lead detection engineering, automate threat responses, and support complex multi-tenant security operations remotely for a contract role.

The ideal candidate has hands-on Cortex XSIAM/XDR experience, Cribl proficiency, and strong scripting (Python/Bash) skills, with a bachelor’s in IT/Security and 5+ years’ enterprise IT experience.

Qualifications

• Hands‑on experience designing, implementing, administering, and supporting Palo Alto Cortex XSIAM and Cortex XDR.
• Experience supporting SIEM platforms within large‑scale, multi‑tenant environments and 24x7 SOC operations.
• Strong background in detection engineering, threat hunting, correlation rule development, alert tuning, dashboards, and reporting.
• Experience creating and managing security automation, playbooks, and response workflows.
• Hands‑on experience with Cribl, including data modeling, log pipeline design, parsing, normalization, enrichment, routing, and ingestion.

Responsibilities

• Design, implement, administer, and optimize Palo Alto Cortex XSIAM and Cortex XDR platforms.
• Support enterprise SIEM and XDR operations within a large-scale, multi-tenant security environment.
• Configure tenant onboarding, role-based access controls, data segregation, dashboards, reporting, and platform integrations.
• Develop and tune detection content, correlation rules, analytics, threat-hunting queries, watchlists, and alert suppression logic.
• Design and maintain security automation, playbooks, and incident response workflows.

Skills

Detection engineering

Threat hunting

Incident response

Security automation

Dashboarding

Education

Bachelor's degree in Information Technology, Information Security, or related field

Tools

Palo Alto Cortex XSIAM

Cortex XDR

Cribl

Python

Bash

Cloud telemetry onboarding

Job description

Computer Aid is seeking a Senior SIEM Engineer to design, implement, and optimize Palo Alto Cortex XSIAM/XDR and Cribl solutions in a large-scale 24x7 SOC. You will lead detection engineering, automate threat responses, and support complex multi-tenant security operations remotely for a contract role.

The ideal candidate has hands-on Cortex XSIAM/XDR experience, Cribl proficiency, and strong scripting (Python/Bash) skills, with a bachelor’s in IT/Security and 5+ years’ enterprise IT experience.