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Senior Engineer, Detection R&D

https://www.marriott.com Logo

Marriott Bonvoy

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Location:
United States , Bethesda

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

100400.00 - 166800.00 USD / Year
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Job Description:

This role is responsible for enhancing detection coverage and methodology through cyber threat detection research and advanced threat detection prototyping within the SIEM, Security Data Lake, and analytics tools.

Job Responsibility:

  • Provide mentorship for junior engineers and Detection Engineering resources
  • Conduct cyber threat detection methodology research aligned with cyber threat detection coverage gaps, threat modeling, and threat intelligence
  • Partner with CTI Team, Detection Engineering, Security Engineering and Security Architecture to develop behavior-based detections leveraging AI/ML and other methods
  • Develop prototype correlation searches, dashboards, reports and alerts within the SIEM, UEBA and Security Data Lake platforms
  • Share detection approaches, recommendations, developed analytics, and other products of detection research with CTI Teams, Detection Engineering and other teams as appropriate to inform detection development
  • Facilitate cross-team collaboration sessions to ideate and review detection use cases and detection methodologies
  • Document and share detection approaches for TTPs, threat models, and monitoring strategies using standard templates and methodologies
  • Collaborate with CTI Team, Detection Engineering, Security Architecture and Engineering teams to ensure detection coverage aligns with cybersecurity risks and business priorities
  • Engage and collaborate with other security engineers and architects as needed to keep pace with the evolution of corporate infrastructure and applications and share that knowledge with peers as appropriate
  • Attend SCRUM and prioritization meetings to review and update deliverables
  • Drive detection coverage gap improvement and increased detection efficacy
  • Stay current with emerging threats, adversary tactics, techniques, and detection technologies
  • Contribute to the development and refinement of detection engineering standards, workflows, and best practices

Requirements:

  • Bachelor’s degree in Computer Science, Information Security, or a related field
  • or equivalent experience and certifications
  • 6+ years of combined experience in detection engineering, red/purple teaming, security analytics, vulnerability management or cyber threat detection roles
  • 3+ years working with Splunk SIEM (Enterprise Security), CrowdStrike NG-SIEM, or developing UEBA/behavior-based threat detections
  • Hands-on experience with EDR tools such as CrowdStrike Falcon, MS Defender, Sentinel One, etc., and pen testing/vulnerability assessments
  • Proven ability to develop advanced detection content including correlation rules, behavioral analytics, and threat hunting queries

Nice to have:

  • Current advanced information security certifications (e.g., CISSP, CISM, GIAC, OSCP)
  • Hands on experience with UEBA solutions and building detections leveraging machine learning
  • Amazon Security Lake experience
  • Familiarity with cloud security, threat intelligence platforms, and modern security architectures
  • Experience with scripting/programming (Python, PowerShell, etc.) and automation
  • Working knowledge of frameworks such as MITRE ATT&CK, MITRE D3FEND, NIST CSF, and ISO/IEC 27001
What we offer:
  • 401(k) plan
  • stock purchase plan
  • discounts at Marriott properties
  • commuter benefits
  • employee assistance plan
  • childcare discounts
  • medical coverage
  • dental coverage
  • vision coverage
  • health care flexible spending account
  • dependent care flexible spending account
  • life insurance
  • disability insurance
  • accident insurance
  • adoption expense reimbursements
  • paid parental leave
  • educational assistance
  • paid sick leave
  • PTO
  • holidays

Additional Information:

Job Posted:
January 09, 2026

Expiration:
February 04, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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