Senior Security Researcher - CTJ - Secret

Microsoft•Redmond, WA

5d•$119,800 - $261,000

About The Position

Security is one of the most critical priorities for customers navigating an increasingly complex landscape of digital threats, regulatory requirements, and rapidly evolving technology environments. Microsoft Security is committed to making the world a safer place by empowering every user, customer, and developer with a comprehensive security cloud that delivers end-to-end protection through simplified, integrated solutions. As part of Microsoft's Cloud & AI organization, we advance Microsoft's mission to secure digital technology platforms, devices, applications, and cloud environments for customers worldwide, while also protecting Microsoft's own global infrastructure. Our culture is built on a growth mindset, a commitment to excellence, and a belief that diverse perspectives drive innovation. Together, we create technologies that positively impact billions of people around the world. Do you have a passion for helping organizations defend themselves against sophisticated cyber threats? Are you energized by the opportunity to work at the forefront of the threat intelligence and security industry? Do you want to play a direct role in protecting Microsoft and its customers from advanced adversaries? If so, consider joining the Applied Intelligence team as an Applied Intelligence Analyst. As an Senior Security Researcher, you will apply the Microsoft Threat Intelligence Center's (MSTIC) intelligence to active investigations across Microsoft's products, services, and customer environments. Operating at the intersection of threat intelligence and incident response, you will enrich investigations with threat actor context, drive attribution efforts, produce actionable intelligence, identify emerging adversary activity, and contribute to Microsoft's threat actor tracking mission. In this role, you will collaborate closely with incident response, threat intelligence, and product teams across Microsoft, including organizations such as GHOST and DART, to help protect both Microsoft and its customers. You will leverage intelligence-driven insights to support investigations, strengthen strategic partnerships, and build new relationships with key stakeholders to advance Microsoft's security objectives and deliver meaningful impact for customers worldwide. At Microsoft, our mission—to empower every person and every organization on the planet to achieve more—guides how we partner with customers to deliver trusted, impactful solutions. With a growth mindset culture, we innovate responsibly and measure success by shared progress—people, teams, and customers. Join us to do meaningful work that changes the world and helps shape what’s next for everyone.

Requirements

Bachelor'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 Master's Degree 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 Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or related field OR equivalent experience.
Candidates must be able to meet Microsoft, customer and/or government security screening requirements as required for this role.
The successful candidate must have an active U.S. Government 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

Nice To Haves

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 detection OR 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 detection OR 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 equivalent experience
Background in cloud and identity-based intrusions — token theft, OAuth abuse, SaaS-native tradecraft
Detection engineering or hunting query development at scale
Use of automation, data science, or AI tooling to accelerate triage, clustering, and analysis
Experience delivering customer or executive briefings under time pressure during active incidents
Working knowledge of malware used in targeted campaigns, including triage of malicious capabilities.
Familiarity with Microsoft security data sources - MDC, Defender XDR, Sentinel, Azure Resource Graph.
Strong technical knowledge of adversary capabilities, infrastructure, and techniques, and the ability to develop new methods to discover and track them.
Experience tracking advanced financially motivated or state-sponsored adversaries using the Diamond Model; ability to characterize TTPs, infrastructure, and operational campaigns.
Demonstrated experience producing actionable intelligence that changed the outcome of an investigation or hardened a defended network.
Familiarity with host, log, and network forensics, common protocols, and a range of adversary command-and-control methods.
Demonstrated experience with log analysis and query languages (KQL/Kusto, SQL, or equivalent) across SIEM, identity, endpoint, or cloud telemetry.
Experience with large-scale cloud, identity, and endpoint telemetry.
Experience supporting incident response and familiarity with common IR procedures and tooling.
Ability to communicate findings clearly, with appropriate confidence language, to technical and executive audiences.

Responsibilities

Support high-impact investigations by providing threat intelligence expertise to both proactive security research initiatives and reactive incident response engagements across Microsoft and customer environments.
Lead attribution and threat actor analysis by collecting, modeling, attributing, and documenting intelligence gathered during investigations. Serve as the primary owner for attribution efforts while partnering with incident response teams responsible for forensics and customer engagement.
Enable Microsoft Security teams by delivering actionable intelligence and attribution insights that support the detection, investigation, and remediation of advanced threats across Microsoft's security ecosystem.
Drive product and service improvements by translating intelligence on adversary activity, exploitation techniques, and emerging attack trends into recommendations that strengthen the security of Microsoft's products and services.
Identify and track emerging threats by discovering previously untracked adversary activity, developing new threat clusters into tracked actor groups, and conducting deep analysis across the Diamond Model and multiple Microsoft telemetry sources to advance Microsoft's understanding of the threat landscape.
Communicate intelligence to diverse audiences through written reports, executive briefings, and customer-facing presentations. Support customer notifications related to imminent, ongoing, or impactful threat activity.
Strengthen the intelligence feedback loop by ensuring insights gained during investigations, including novel capabilities, infrastructure, targeting patterns, and tradecraft, are rapidly shared with Microsoft Threat Intelligence Center (MSTIC) tracking teams to improve detection, attribution, and future investigations.