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Principal Software Engineer
Principal Software Engineer-August 2024
Redmond
Aug 2, 2025
About Principal Software Engineer

  The Virtualization Core Platform team is looking for a talented, dedicated engineer to work on virtualization technologies to help drive the development of the next generation of our platform. We are looking for candidates who can learn quickly, have dependable design skills, and have the ability to build and manage a dynamic team.

  Have you used Hyper-Virtualization (Hyper-V) today? Have you used Windows 11 today?

  Millions of users interact with Hyper-V daily. Hyper-V is the backbone of the cloud and nearly all of Microsoft's online properties, including Azure, are running on Hyper-V. That's millions of virtual machines hosting the services that people use every day.

  Do you want to build that?

  Join the Virtualization Core Platform team and become a key part of Microsoft's technical strategy. We're at the center of some of the most relevant and rapidly evolving technological areas in the company. We're transforming datacenters and the cloud with classic virtualization technologies as well as exciting new investments in lightweight containers. We’re enabling exciting new technology on Windows desktop systems for mobile application development and security. We are embracing innovation across multiple platforms like Linux and extending our investments in support of Open-Source projects.

  Do you have experience with virtualization technologies?

  If so, that's fantastic. If not, we want you to bring your current experience to the team and use it to transform yourself into a virtualization expert. As a Principal Software Engineer , you'll be responsible for working on components of Microsoft's virtualization platform. Your work will touch all aspects of virtualization. You'll be working closely with all of Microsoft's key silicon partners to enable new hardware features and push the boundaries of performance, reliability, security, and more. We're looking for a dedicated, innovative, and versatile Principal Software Engineer.

  Not sure if this is the right job for you?

  We ship an extremely high-quality platform that delights our customers, release after release. But more importantly, we have a collaborative culture where new ideas are embraced and encouraged. Our goal is to create an engaging environment where you can do your best work.

  Come talk to us. We're hiring for a wide variety of roles and responsibilities. We'd love to find the right spot for you on the Virtualization Core Platform team.

  In Core OS, we are responsible for the Operating Systems that power Azure, Microsoft's Linux OS, the platforms for Windows Client and Xbox, and our Windows Server ecosystem – through all of these, we support every one of our cloud businesses and billions of customers around the world. In this era of ubiquitous computing, systems software excellence has never been more important for Microsoft. High quality, high-efficiency operating systems and platform components underpin everything we do as a company, from making our systems more reliable for our customers, to increasing our competitiveness by reducing Cost of Goods Sold (COGS), to delivering new features and capabilities to delight customers – that’s all of us!

  Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

  Responsibilities

  Collaborate with a dynamic team of engineers, including mentoring software engineers in the workgroup.

  Learn and share ideas continuously.

  Drive for quality in everything you do and continuously improve the quality of the systems on which you work.

  Collaborate across team boundaries to define and drive team charter and vision.

  Provide technical input across the Windows Core and Azure teams.

  Design and implement new virtualization related features for Hyper-V and Windows.

  Qualifications

  Required/Minimum Qualifications:

  Bachelor's Degree in Computer Science, or related technical discipline AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python

  OR equivalent experience.

  2+ years of experience with hypervisors, kernel mode programming, containers or device virtualization.

  Other Requirement:

  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 Cloud Background Check upon hire/transfer and every two years thereafter.

  Additional or Preferred Qualifications:

  Bachelor's Degree in Computer Science or related technical field AND 10+ years technical engineering experience with coding in languages including, but not limited to, C, C++, Rust

  OR 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++, Rust

  OR equivalent experience.

  Experience coding, debugging, testing, and problem solving skills.

  Effective communication and collaboration skills.

  Ability to work on a large codebase and willing to take on a wide variety of challenges.

  Reliable understanding of systems software and hardware/software interaction.

  A track record of solid results across multiple ship cycles.

  Thorough understanding of modern computer architectures found in desktop PCs and servers.

  Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $133,600 - $256,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $173,200 - $282,200 per year.

  Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay

  #CoreOSJobs

  #AEPJobs

  Microsoft is an equal opportunity employer. Consistent with applicable law, 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 and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations (https://careers.microsoft.com/v2/global/en/accessibility.html) .

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