Principal Software Engineer

In Microsoft Defender for Office (MDO) team, we are responsible for delivering a cloud-based email and message filtering service that protects customers from advanced threats (malware, phish, fraud and spam) in Microsoft’s collaboration workloads (Mail, Teams, SharePoint, OneDrive).   

MDO provides investigation, threat hunting and remediation capabilities that allow security teams to efficiently identify, prioritize, investigate, and respond to threats. Our mission is to stay ahead of attackers by continuously evolving our detection and prevention capabilities using advanced machine learning, heuristics, and big data analytics.   

Responsibilities 

As the Principal Software Engineer in our team, you will be responsible for  

• Architecting and designing post-breach systems such as threat hunting, data analysis tools, pattern matching, threat investigations, automatic response systems, Remediations, alerting, attack simulations, user security trainings, intelligent reporting and data insights. 

• Architecting and building solutions based on Agentic AI platforms for email/message verdict, consumer protection, SOC workflows. 

• Champion the product roadmap, collaborating with cross functional teams across GEOs to integrate with other Microsoft products like Sentinel, Defender, Security Copilot etc. 

• Mentor the team of brilliant engineers to design and implement with best engineering practices.  

Qualifications  

• Bachelor’s or Master’s degree in computer science or related technical field, with 8+ years of hands-on engineering experience and a proven track record of delivering large-scale, high-impact, reliable solutions. Deep expertise in distributed systems, security platforms, and coding in languages such as C, C++, C#, Java, JavaScript, React or Python.  

• Experience in organizational and technical leadership, architecting cloud services, and driving product innovation.  

Preferred qualifications:  

• Proficiency in Azure Cloud PaaS, big data analytics, and modern security protocols.  

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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