SIEM Analyst

SIEM Analyst

Job Locations


US-VA-Herndon

Requisition ID


View phone number on click.appcast.io

Position Category


Information Technology

Clearance


Top Secret/SCI

Responsibilities

We are seeking a highly skilled and innovative SIEM Analyst to join our team in the greater DMV area, supporting the Army National Guard.

Responsibilities

Review complex SIEM events, logs, and alerts; correlate telemetry from network, endpoint, identity, and cloud sources to detect anomalous activity.
• Investigate incidents through multisource correlation, timeline reconstruction, enrichment with threat intelligence, and IOC validation.
• Build and update intermediatelevel correlation rules, alert logic, and detection filters to address evolving use cases and improve fidelity.
• Document triage results, maintain investigation records with analytic notes, and categorize incidents per escalation criteria.
• Support tuning by identifying systemic false positives, refining rule parameters, and proposing detection enhancements.
• Collaborate with SOC analysts, threat hunters, cybersecurity engineers, and incident responders to provide technical context and preliminary rootcause assessments.
• Maintain SIEM dashboards and operational reporting: update visualizations, refine queries, and validate metric accuracy.
• Verify ingestion, parsing, and normalization of log sources; perform dataquality checks and report visibility gaps for remediation.
• Apply detection playbooks and organizational policies to sustain continuous monitoring across all enclaves.
• Contribute to SIEM operations improvement by refining analytic workflows, updating documentation, and adopting new platform capabilities.

#ENOCS

Qualifications

Qualifications

• 2 years with BS/BA; 0 years with MS/MA; 6 years with no degree

• Clearance: Active TS/SCI clearance.

• Candidate must meet ONE of the following:

  • Bachelor's degree in Cybersecurity; OR
  • Relevant professional certification or equivalent experience (examples: CySA+; GCIA; CEH); OR
  • Relevant DoD/military training (example: Splunk Core Certified Power User).

• Required experience and skills:

  • SIEM, SOC, or security analytics experience with handson alert investigation and correlation responsibilities.
  • Proficiency writing and tuning correlation logic/queries in one or more SIEM platforms (e.g., Splunk, Elastic, QRadar, Sentinel) and working knowledge of log formats/normalization.
  • Experience with endpoint telemetry, network flows, authentication logs, cloud logs, and threatintelligence enrichment.
  • Strong incident documentation, analytic writing, and case management skills; ability to produce reproducible investigation artifacts.
  • Capability to identify and remediate dataquality and ingestion issues in coordination with data engineering teams.

• Desired:

  • Prior DoD/ARNG SOC or classifiedenvironment SIEM experience.
  • Familiarity with MITRE ATT&CK mapping for detection use cases, SOAR integrations, and detection performance metrics (precision/recall, MTTD).
  • Experience mentoring junior analysts and contributing to a detection engineering backlog.

#ENOCS

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.

Target Salary Range

$66,000 - $106,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.