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Principal Security Researcher - CTJ - Top Secret with Security Clearance

Microsoft CorporationReston, VA🇺🇸United StatesPosted Oct 7, 2026

Quick Overview

Salary
$142.8k - $274.8k/yr
Seniority
Leader
Work mode
Hybrid
Location
Reston, VA, United States
Posted
Yesterday

Job Description

Overview The Cloud & AI organization accelerates Microsoft's mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers' heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.

Microsoft is one of the largest enterprise service companies in the world. Do you have a passion for helping Microsoft's clients defend themselves against targeted exploitation? Are you interested in being intimately involved in the latest, cutting-edge developments in the security industry and having a direct impact on the security of all Microsoft customers? Do you want to be on the front lines of helping our customers go toe-to-toe against advanced adversaries? Are you interested in a fast-paced job full of new opportunities?

If that resonates, consider joining us as a Principal Security Researcher! Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond. Responsibilities

  • Performing deep analysis of attacker activity in on-premises and cloud environments.
  • Identifying potential threats, allowing for proactive defense before an actual incident.
  • Notifying customers regarding imminent attacker activity.
  • Providing recommendations to improve customers' cybersecurity posture going forward and performing threat intelligence knowledge transfer to prepare customers to defend against today's threat landscape.
  • Building proof-of-concept and prototype threat hunting tools, automations, and new capabilities.
  • Driving product and tooling improvements by conveying learnings from threat hunting and incident response at scale to engineering partner teams.
  • Identifying, prioritizing, and targeting complex security issues that cause negative impact to customers. Creating and driving adoption of relevant mitigations and providing proactive guidance.
  • Working with others to synthesize research findings into recommendations for mitigation of security issues. Sharing across teams. Driving change within team based on research findings.

Other

  • Embody our company's culture and values . Qualifications Required/minimum qualifications
  • Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 3+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
  • OR Master's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 4+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
  • OR Bachelor's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 6+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
  • OR equivalent experience.

Other: Security Clearance Requirements: Candidates must be able to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings: The successful candidate must have an active U.S. Government Top Secret Security Clearance. Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. Failure to maintain or obtain the appropriate clearance and/or customer screening requirements may result in employment action up to and including termination.

Clearance Verification: This position requires successful verification of the stated security clearance to meet federal government customer requirements. You will be asked to provide clearance verification information prior to an offer of employment.

Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Citizenship & Citizenship Verification: This position requires verification of U.S. citizenship due to citizenship-based legal restrictions. Specifically, this position supports United States federal, state, and/or local United States government agency customer and is subject to certain citizenship-based restrictions where required or permitted by applicable law. To meet this legal requirement, citizenship will be verified via a valid passport, or other approved documents, or verified US government Clearance.

Preferred Qualifications

  • Proven knowledge of security fundamentals across Microsoft platforms (Client, Server, Cloud).
  • Strong understanding of malware and the modern threat landscape, especially identity-based attacks.
  • Familiarity and understanding of SQL or Kusto Query Language (KQL) queries (or experience with large database/SIEM query languages such as Splunk/Humio/Kibana, etc.)
  • Familiarity and understanding of Jupyter Notebooks, or building equivalent threat hunting automations with scripting languages.
  • Experience with sophisticated threat actor evidence including familiarity with typical Indicators of Compromise (IOCs), Indicators of Activity (IOAs) and Tools, Techniques and Procedures (TTPs)
  • Use of forensic analysis tools such as X-Ways Forensics®, WinHex®, Encase®, FTK®, etc.
  • Experience with various forensic log artifacts found in SIEM logs, web server logs, AV logs, protection logs such as HIDS and NIDS logs.

Security Research IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $274,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year. Certain roles may be eligible for benefits and other compensation.

Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled. Microsoft is an equal opportunity employer.

All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances.

If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

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