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Detection Engineer

Job in Herndon, Fairfax County, Virginia, 22070, USA
Listing for: Peraton
Full Time position
Listed on 2026-06-18
Job specializations:
  • IT/Tech
    Cybersecurity
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below

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 Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, or Software Engineering; OR
    • Relevant DoD/military training (examples: A‑531‑1900; DISA (521) Training;
      Cyber Defense Infrastructure Support Specialist (Intermediate) Playlist); OR
    • Relevant professional certification or equivalent experience (examples: GMON, GRID, CEH, Cloud+, CySA+, GSEC, Pen Test+, Security+, SSCP).
  • Required experience and skills:
    • Detection engineering, SOC analytics, or security operations experience.
    • Practical experience authoring correlation rules/signatures and analytic queries in one or more SIEM/analytics languages (e.g., KQL, SPL, Sigma, vendor‑specific).
    • Familiarity with IDS/IPS signature development, EDR/endpoint detection, and OT/DCI telemetry characteristics.
    • Hands‑on testing/tuning experience to validate detections, reduce false positives, and document operational runbooks.
    • Ability to liaise with data engineering to specify ingestion and normalization requirements and validate telemetry fidelity.
    • Strong documentation skills and capability to maintain versioned detection content and operational artifacts.
  • Desired:
    • Prior DoD/ARNG or enterprise SOC/NOSC detection engineering experience.
    • Experience mapping detections to MITRE ATT&CK and integrating CTI/CDAP/CHAP inputs into use‑case prioritization.
    • Familiarity with automated testing frameworks, SOAR integrations, and detection performance metrics (precision/recall, MTTD).

#ENOCS

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

Responsibilities
  • Develop and maintain detection logic across SIEM, IDS/IPS, endpoint, and OT/DCI monitoring platforms: correlation rules, signatures, and behavioral analytics.
  • Translate threat intelligence, CDAP findings, CHAP results, and vulnerability data into detection use cases, dashboards, and alerting content.
  • Test detection rules in lab and sample datasets to verify functionality, tune for false‑positive reduction, and validate operational readiness.
  • Document detection logic, metadata, versioned content, and change histories to support operational tracking and auditability.
  • Collaborate with SOC and NOSC analysts to tune alerts, refine rule logic, and validate detections against observed activity.
  • Update runbooks, produce tuning notes, and support analysts during triage and validation workflows.
  • Coordinate with data engineers to ensure ingestion, normalization, and field mappings for high‑value telemetry sources.
  • Review telemetry quality, identify gaps in coverage, and report issues that affect detection visibility.
  • Contribute to continuous improvement by iterating detection content, refining workflows, and adopting new defensive techniques.

#ENOCS

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