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Microsoft Senior Security Researcher 
Taiwan, Taoyuan City 
820514998

09.10.2025

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Minimum Qualifications:

  • Master's Degree in Statistics, Mathematics, Computer Science or related field.
    • OR 5+ years experience in software development lifecycle, large-scale computing, modeling, cybersecurity, and/or anomaly detection.
  • 5+ years of experience in cybersecurity with a understanding of the modern attacker kill chain, MITRE ATT&CK framework, and emerging enterprise threats—including attacks targeting identity providers (e.g., Entra, Okta) and cloud applications (e.g., Workday, Salesforce, O365, Exchange Online).
  • Proficient in at least one programming language such as Python, C#, or C++.


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.

Preferred Qualifications:

  • Doctorate in Statistics, Mathematics, Computer Science or related field.
    • OR 6+ years experience in software development lifecycle, large-scale computing, modeling, cybersecurity, and/or anomaly detection.
  • Demonstrated ability to adapt to the evolving landscape of AI and large language models (LLMs), including leveraging these technologies to enhance threat detection, analysis, and response.
  • Experience working with and analyzing large-scale datasets (e.g., billions of events per day).

Microsoft will accept applications for the role until Ocotober 13, 2025.

Responsibilities

As a Senior Security Researcher, you will:

  • Perform attacker tradecraft research and threat landscape investigation across cloud-based attacks spanning devices, identities, applications, and data.
  • Partner with engineers and data scientists in a geographically distributed team to deliver innovative new product capabilities.
  • Threat hunting to discover real world advanced attacks together with designing and implementing automated detection and hunting analytics combining alerts and signals across Microsoft Defender and Microsoft Sentinel security products.
  • Contribute to active engagement with the security ecosystem through papers, presentations, and blogs.
  • Provide subject matter expertise to customers based on industry attack trends and product capabilities.
  • Cross-functional collaboration and interpersonal skills, with the ability to articulate business needs and advocate for product improvements.