Microsoft

Senior Security Researcher - CTJ - TS/SCI

Microsoft
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2 days ago
Reston, VA, USA or Redmond, WA, USASenior
H1B sponsor

Base Salary

$120k - $261k/yr

Responsibilities

  • Conduct endpoint threat research, including malware reverse engineering, exploitation, defense evasion, persistence, and emerging threats.
  • Investigate false positives, false negatives, missed detections, and customer escalations to improve Microsoft Defender protection quality.
  • Analyze MDE telemetry, malware samples, threat intelligence, customer incidents, and hunting data to identify attack patterns and protection gaps.
  • Own detection development end to end, including hypothesis formation, technical analysis, implementation, testing, deployment, monitoring, and tuning.
  • Use AI and agentic workflows to automate investigation, enrichment, malware analysis, detection development, testing, and validation.
  • Act as a tier-2 escalation point and coordinate cross-team work across research, telemetry, engineering, and product groups.

Requirements

  • Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or a related field plus 3+ years of relevant experience; or a master's degree plus 3+ years; or a bachelor's degree plus 4+ years; or equivalent experience.
  • Relevant experience may include software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, or anomaly detection.
  • An active TS/SCI clearance and willingness and eligibility to upgrade to TS/SCI with polygraph are required.
  • Candidates must be able to maintain the required clearance and pass Microsoft, customer, government, and Microsoft Cloud background screening requirements.
  • U.S. citizenship verification is required because of citizenship-based legal restrictions supporting government customers.
  • Preferred qualifications include a doctorate plus 3+ years, a master's degree plus 6+ years, or a bachelor's degree plus 8+ years of relevant experience, or equivalent experience.

Tech Stack

LinuxmacOSWindows

Categories

Microsoft

About Microsoft

10,000+ employees

Microsoft develops operating systems, productivity software, cloud services, developer tools, and consumer devices for individuals, enterprises, and governments. Its main products include Windows, Microsoft 365, Azure, Visual Studio/GitHub, Xbox, and LinkedIn; revenue comes from software subscriptions and licenses, cloud consumption, hardware sales, and advertising. Founded in 1975 and headquartered in Redmond, Washington, Microsoft is a public company traded on Nasdaq.

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