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Job Details
Posted date: Dec 09, 2025
There have been 46 jobs posted with the title of Principal Security Researcher all time at Microsoft.There have been 46 Principal Security Researcher jobs posted in the last month.
Category: Security Research
Location: Multiple Locations, Multiple Locations
Estimated salary: $247,100
Range: $163,000 - $331,200
Employment type: Full-Time
Work location type: 0 days / week in-office – remote
Role: Individual Contributor
Description
OverviewThe 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 on the Global Hunting, Oversight, and Strategic Triage (GHOST) team!
We are looking for an experienced Principal Security Researcher with a proficient analytical background to join our team to perform threat hunts, assist with investigations, develop threat intelligence, and to cultivate investigation best practices into Microsoft tooling and products. Researchers will support a global team to identify and catalog new attacker TTPs, victims, and deliver customer notifications to protect worldwide enterprise customers and empower customers to protect themselves via constantly improving Microsoft products.
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.
In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day.
Responsibilities
This role is part of a collaborative team, assisting our customers with:
Performing deep analysis of attacker activity in on-premises and cloud environmentsIdentifying potential threats, allowing for proactive defense before an actual incidentNotifying customers regarding imminent attacker activityProviding recommendations to improve customers’ cybersecurity posture going forward and performing threat intelligence knowledge transfer to prepare customers to defend against today’s threat landscapeBuilding proof-of-concept and prototype threat hunting tools, automations, and new capabilitiesDriving product and tooling improvements by conveying learnings from threat hunting and incident response at scale to engineering partner teamsIdentifying, prioritizing, and targeting complex security issues that cause negative impact to customers. Creating and driving adoption of relevant mitigations and providing proactive guidanceWorking with others to synthesize research findings into recommendations for mitigation of security issues. Sharing across teams. Driving change within team based on research findings.
Qualifications
Required/Minimum Qualifications
Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 5+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detectionOR Master'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 detectionOR Bachelor's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 8+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detectionOR equivalent experience.Other Requirements:
Ability 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:
Microsoft Cloud Background Check: This position will be required to pass the Microsoft background and Microsoft Cloud background check upon hire/transfer and every two years thereafter.Citizenship & Citizenship Verification: This role will require access to information that is controlled for export under export control regulations, potentially under the U.S. International Traffic in Arms Regulations or Export Administration Regulations, the EU Dual Use Regulation, and/or other export control regulations.  As a condition of employment, the successful candidate will be required to provide either proof of their country of citizenship or proof of their U.S. permanent residency or other protected status (e.g., under 8 U.S.C. 1324b(a)(3)) for assessment of eligibility to access the export controlled information. To meet this legal requirement, and as a condition of employment, the successful candidate’s citizenship will be verified with a valid passport. Lawful permanent residents, refugees, and asylees may verify status using other documents, where applicable.
Citizenship & Citizenship Verification: This position requires verification of citizenship due to citizenship-based legal restrictions. Specifically, this position supports United States federal, state, and/or local government agency customers and is subject to certain citizenship-based restrictions where required or permitted by applicable law. To meet this legal requirement, and as a condition of employment, the successful candidate’s citizenship will be verified with a valid passport.
Additional or Preferred Qualifications
Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 8+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detectionOR Master's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 12+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detectionOR Bachelor's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 15+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detectionOR equivalent experience. Proven knowledge of security fundamentals across Microsoft platforms (Client, Server, Cloud)Strong understanding of malware and the modern threat landscape, especially identity-based attacksFamiliarity 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 languagesExperience 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®, etcExperience with various forensic log artifacts found in SIEM logs, web server logs, AV logs, protection logs such as HIDS and NIDS logs#GHOST #MSFTSecurity
Security Research IC6 - The typical base pay range for this role across the U.S. is USD $163,000 - $296,400 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 $220,800 - $331,200 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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