JOB DETAILS
Principal Software Engineer
CompanyMicrosoft
LocationRedmond
Work ModeOn Site
PostedNovember 22, 2025
About The Company
Every company has a mission. What's ours? To empower every person and every organization to achieve more. We believe technology can and should be a force for good and that meaningful innovation contributes to a brighter world in the future and today. Our culture doesn’t just encourage curiosity; it embraces it. Each day we make progress together by showing up as our authentic selves. We show up with a learn-it-all mentality. We show up cheering on others, knowing their success doesn't diminish our own. We show up every day open to learning our own biases, changing our behavior, and inviting in differences. Because impact matters.
Microsoft operates in 190 countries and is made up of approximately 228,000 passionate employees worldwide.
About the Role
Partners with appropriate stakeholders to determine user requirements for one or more complex safety scenarios, including demonstration of security attacks, both practical contemporary attacks or future attacks. Leads by example and mentors others to produce extensible and maintainable code used across the company. Leverages deep subject-matter expertise of cross-product features with appropriate stakeholders to lead multiple product's project plans, release plans, and work items. Holds accountability as a Designated Responsible Individual (DRI), mentoring engineers across products/solutions, monitoring system/product/service for novel security vulnerabilities. Proactively seeks new knowledge and adapts to new trends, technical solutions, and patterns that will improve the security baseline, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale and shares knowledge with other engineers. Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Python OR equivalent experience. 3+ years of experience in AI/ML security or equivalent recent security expertise. Master's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Python, or equivalent experience. Demonstrated ability to apply AI knowledge in practice including prompt engineering, grounding, or model fine tuning - Demonstrated ability to both break systems and discover novel security flaws as well as building safeguards to mitigate them. Experience with Modern browsers, especially chromium-based browsers. Experience representing a team in multi-stakeholder environments.
Key Skills
Software EngineeringSecurityAI/MLCC++C#JavaJavaScriptPythonMentoringVulnerabilitiesCross-Product FeaturesProject ManagementObservabilityPerformanceExtensible Code
Categories
TechnologyEngineeringSoftwareSecurity & Safety
Job Information
📋Core Responsibilities
The Principal Software Engineer partners with stakeholders to determine user requirements for complex safety scenarios and leads by example while mentoring others. They hold accountability as a Designated Responsible Individual (DRI) and proactively seek new knowledge to improve security and performance across products.
📋Job Type
full time
📊Experience Level
10+
💼Company Size
226306
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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