SIEM Engineer – Palo Alto Cortex XSIAM /XDR

Innosoft Corporation; New York (NY); Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

Health Insurance

Paid Vacation

401K Match

STD LTD and AD&D

Job summary

Innosoft Corporation seeks a seasoned SIEM Engineer to design, implement and optimize Palo Alto Cortex XSIAM/XDR across large, multi-tenant environments. This remote role supports a 24x7 SOC and participates in a monthly on-call rotation, with after-hours maintenance and incident escalation as needed.

The candidate will focus on XSIAM/XDR engineering, automation, detections and data pipelines, while also supporting Cribl data modeling and log ingestion.

Qualifications

• Bachelor's degree in Information Technology or Information Security required.
• Eight years of relevant work experience may be substituted for education.
• Five years of experience in supporting large IT environments and/or system deployments.
• CISSP, Security+ or GIAC certification is required.
• Palo Alto Cortex, Cribl or other SIEM/security platform certifications preferred.

Responsibilities

• Plan, design, deploy, administer and support enterprise SIEM and XDR capabilities for multi-tenant environments.
• Develop detections, correlation rules, analytics, threat-hunting queries and dashboards.
• Create automation, integrations and response workflows with scripting languages.
• Onboard telemetry from cloud, endpoint, network, identity, SaaS and custom apps.
• Collaborate with security architects, engineers and analysts for SOC operations.
• Maintain data pipelines, log management, data normalization and ingestion health.

Skills

Cortex XSIAM

Cortex XDR

Automation scripting

SOC operations

Multi-tenant

Python

Threat hunting

Education

Bachelor's degree

CISSP Certification

Palo Alto Cortex certification

Eight years experience substitution

Tools

Cribl

PowerBI

Job description

SIEM Engineer – Palo Alto Cortex XSIAM /XDR

SIEM Engineer – Palo Alto Cortex XSIAM/XDR

Project Identifier

SC

Client

South Carolina

Agency

State of South Carolina

Location

100% Remote

1201 Main Street Suite 600, Columbia, SC 29201 - Open to Nationwide resources. This position will participate in a monthly on-call rotation supporting the 24x7 SOC. After-hours maintenance, incident escalation support and operational handoffs may be required as needed.

Contract Duration

12 Months

Interview Type

1-2 Rounds Virtual

The candidate will have to be on an Innosoft W2.

At least 6 months of valid work authorization

Tentative Start Date

11/30/2026

Deadline

11/10/2026

Project Overview

This position will serve as a SIEM Engineer within the Department of Administration's Division of Information Security. The successful candidate will show extensive experience successfully designing, implementing, maintaining and optimizing Palo Alto Cortex XSIAM and Cortex XDR in large-scale, multi-tenant security environments. This contractor will work with a large enterprise security team and a 24x7 Security Operations Center (SOC), assisting full‑time security architects, engineers and analysts with the design, implementation, integration and continuous improvement of SIEM, XDR, detection and response capabilities supporting multiple state agencies.

This contractor will be primarily focused on Cortex XSIAM and Cortex XDR engineering, administration, detection content, automation and operational support while also providing important secondary support for Cribl data modeling, log pipeline design, parsing, normalization, enrichment and ingestion. The role requires hands‑on experience supporting both security engineering and SOC operations, including multi‑tenant onboarding, tenant‑specific configurations, access controls, data separation, integrations, dashboards, reporting, incident response, threat hunting, playbooks, runbooks, standard operating procedures and analyst enablement. The candidate must be able to support strategic planning, solution design, implementation, troubleshooting, performance optimization and continuous improvement of secure systems and services.

Duties/Responsibilities:

This position is 100% remote and will participate in a monthly on‑call rotation supporting a 24x7 Security Operations Center serving multiple state agencies. Other after‑hours work may be required as needed.

• Primarily assist in the planning, design, deployment, administration and operational support of enterprise SIEM and XDR capabilities, including:
  • Palo Alto Cortex XSIAM and Cortex XDR platform engineering, configuration, optimization and troubleshooting
  • Multi‑tenant agency onboarding, tenant‑specific configuration, role‑based access, data segregation, dashboards and reporting
  • Detection engineering, correlation rules, analytics, threat‑hunting queries, watchlists, suppression logic and false‑positive reduction
• Secondarily assist in the planning, design, deployment and operational support of log management and security data pipelines, including:
  • Cribl data modeling, log pipeline design, routing, parsing, normalization, enrichment, filtering, replay and ingestion
  • Onboarding and health monitoring of cloud, endpoint, network, identity, SaaS and custom application telemetry
  • Log volume, retention, performance and cost optimization while maintaining security and compliance requirements
  • Integrations with ticketing, case management, notification, identity, threat intelligence and other enterprise systems as needed
• Develop, test, deploy and maintain automated response workflows and playbooks for enrichment, triage, containment, escalation, notifications, case management and incident response.
• Create and maintain operational runbooks, standard operating procedures, escalation matrices, troubleshooting guides, architecture diagrams, data‑flow documentation, use‑case catalogs and analyst knowledge articles.
• Support Tier 1 through Tier 3 SOC analysts and incident responders through platform troubleshooting, detection tuning, threat hunting, technical escalation, knowledge transfer and shift handoffs.
• Monitor and report on ingestion health, platform availability, alert volumes, detection coverage, false positives, service levels, mean time to detect, mean time to respond and tenant‑specific operational metrics.
• Ensure high availability, resilience, backup, recovery, lifecycle management and controlled change processes for SIEM, XDR and supporting log pipeline services.
• Collaborate with security architects, engineers, analysts and agency stakeholders to align solutions with business goals, industry‑standard frameworks, regulatory requirements and organizational risk tolerance.

Requirements

Education and Certifications:

• Bachelor's degree in an Information Technology or Information Security related field
• Eight years of relevant work experience may be substituted in lieu of education
• Five years of experience in supporting large IT environments and/or system deployments
• CISSP, Security+ or GIAC certification
• Palo Alto Cortex, Cribl or other relevant SIEM/security platform certification

Required Skills:

• Hands‑on Palo Alto Cortex XSIAM and Cortex XDR design, implementation, administration and operational support.
• Experience engineering and supporting SIEM capabilities for multi‑tenant environments and 24x7 Security Operations Center operations.
• Cribl data modeling, log pipeline design, parsing, normalization, enrichment, routing and ingestion.
• Experience developing automation, integrations, playbooks and response workflows using scripting languages such as Python and Bash.
• Experience onboarding and troubleshooting telemetry from cloud, endpoint, network, identity, SaaS, Linux, Windows and custom application sources.
• Strong understanding of enterprise security architecture, incident response, networking, access control, secure system design and industry‑standard cybersecurity frameworks.

Preferred Skills:

• Simultaneously manage multiple work efforts
• Strong schedule management and resource planning skills
• Ability to identify, map, and re‑engineer business processes.
• Integrated Master Schedule skills
• PowerBI and/or data dashboard skills

Additional Skills:

• Experience developing and tuning detections, correlation rules, analytics, threat‑hunting queries, dashboards, reporting and alert suppression logic.
• Strong experience creating and managing complex playbooks
• Familiarity with industry‑standard security and compliance frameworks and experience developing playbooks, runbooks, procedures and technical documentation.
• Experience supporting Tier 1 through Tier 3 SOC analysts, threat hunting, incident response and 24x7 operational handoffs.

Standard Employee Benefits.

50% Health Insurance Paid by Innosoft, Paid Vacation, 401K Match, STD LTD and AD&D paid by Innosoft.