Senior SIEM Engineer
Confirmed on the employer's own hiring board on Nov 4, 2026. First seen by Alion on Nov 4, 2026. CAI scores B on the Alion truth index.
Req number:
R8918Employment type:
Full timeWorksite flexibility:
RemoteWho we are
CAI is a global services firm with over 9,000 associates worldwide and a yearly revenue of $1.3 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right-whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise.
Job Summary
The Senior SIEM Engineer will be responsible for designing, implementing, and optimizing Palo Alto Cortex XSIAM/XDR and Cribl solutions in a large-scale, multi-tenant 24x7 SOC environment, with expertise in detection engineering, security automation, threat hunting, log pipeline management, and incident response support.Job Description
We are seeking a highly skilled and experiencedSenior SIEM Engineer to join our IT team. This position will be full-time, remote, and is a contract position.
What You'll Do
- 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
- Support Cribl log management, including data modeling, log pipeline design, parsing, normalization, enrichment, routing, and ingestion
- Integrate security platforms with ticketing, case management, notification, identity, and threat intelligence systems
- Monitor platform health, ingestion performance, alert volumes, detection coverage, and operational metrics
- Troubleshoot complex security platform issues and support Tier 1-3 SOC analysts during investigations and incident response activities.
- Create and maintain runbooks, SOPs, architecture diagrams, technical documentation, and knowledge articles
- Participate in a monthly on-call rotation supporting a 24x7 Security Operations Center (SOC)
- Collaborate with security architects, engineers, analysts, and stakeholders to continuously improve security operations and services
What You'll Need
Required
- 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
- Experience developing integrations and automation using Python and Bash
- Experience onboarding and troubleshooting cloud, endpoint, network, identity, SaaS, Linux, Windows, and custom application telemetry sources
- Strong understanding of enterprise security architecture, incident response, networking, access controls, secure system design, and cybersecurity frameworks
- Bachelor's degree in Information Technology, Information Security, or a related field; equivalent experience may be considered in lieu of a degree
- Minimum five years of experience supporting large IT environments and/or enterprise system deployments
- Ability to pass criminal background and credit checks and obtain/maintain CJIS certification
Preferred
- Preferred certifications such as CISSP, Security+, GIAC, Palo Alto Cortex, Cribl, or other relevant cybersecurity certifications
Physical Demands
- Ability to safely and successfully perform the essential job functions consistent with the ADA and other federal, state, and local standards
- Sedentary work that involves sitting or remaining stationary most of the time with occasional need to move around the office to attend meetings, etc
- Ability to conduct repetitive tasks on a computer, utilizing a mouse, keyboard, and monitor
Reasonable accommodation statement
If you require a reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employment selection process, please direct your inquiries to [email protected] (888) 824 - 8111.
EEO Statement
It is the policy of Computer Aid, Inc.(CAI) not to discriminate against any employee or applicant for employment because of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, genetic information, disability or because he or she is a protected veteran. It is also the policy of CAI to take affirmative action to employ and to advance in employment, all persons regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, genetic information, disability or protected veteran status, and to base all employment decisions only on valid job requirements. This policy shall apply to all employment actions, including but not limited to recruitment, hiring, upgrading, promotion, transfer, demotion, layoff, recall, termination, rates of pay or other forms of compensation and selection for training, including apprenticeship, at all levels of employment.
Employees and applicants of CAI will not be subject to harassment on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, genetic information, disability or because he or she is a protected veteran. Additionally, retaliation, including intimidation, threats, or coercion, because an employee or applicant has objected to discrimination, engaged or may engage in filing a complaint, assisted in a review, investigation, or hearing or have otherwise sought to obtain their legal rights under any Federal, State, or local EEO law is prohibited.
$70-$80 per hourThe pay range for this position is listed above. Exact compensation may vary based on several factors, including location, experience, and education. Benefit packages include medical, dental, and vision insurance, as well as 401k retirement account access. Employees in this role may also be entitled to paid sick leave and/or other paid time off as provided by applicable law.