Security Researcher II /Senior Security Researcher - Microsoft Defender (Multiple Roles)
- Level
- Senior
- Work type
- On-site · Multiple Locations
Not stated in the posting: salary, visa.
Open. First seen 26 October 2026.
About the role
Overview Join one of the elite research teams powering Microsoft Defender, the dominant market leader in XDR, SIEM, Cloud, and AI Security. We protect the world’s largest enterprises by analyzing trillions of signals to protect against sophisticated cyberattacks across hybrid…
What this role asks for
Particular to this role
SIEM
Rare in Microsoft's other 299 open postings.
Standard for security roles
AWS · Python
Common in security postings at any company.
Compared with Microsoft's other open jobs.
The team: Security Research HIRES STEADILY
This role is one of 7 open in Security Research. 3 were posted in the last 30 days and the oldest in July: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Cybersecurity (6 of 7), Python (4 of 7), SIEM (4 of 7), SQL (4 of 7), Azure (3 of 7), C# (3 of 7), C++ (3 of 7)
OTHER ROLES ON THIS TEAM
- Principal Threat Intelligence Analyst - CTJ - Top Secret posted Oct 13
- Senior Security Researcher posted Oct 13
- Senior Security Researcher posted Sep 30
- Security Researcher II posted Aug 11
- Principal Security Researcher posted Aug 4
- Senior Applied Threat Intelligence Analyst - Microsoft Security Threat Response posted Jul 31
From the team and dates on Microsoft's own job board.
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