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Senior Software Engineer - Core OS / Windows

https://www.microsoft.com/ Logo

Microsoft Corporation

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Location:
United States , Redmond

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Contract Type:
Not provided

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Salary:

119800.00 - 234700.00 USD / Year

Job Description:

Would you like to be a part of the team that makes the critical software fabric that runs most of the hosted virtualized computing in today’s datacenters and PCs? For many reasons of scale, reliability, and cost reduction, virtualized computer systems are run on modern host systems with powerful networks, storage, and compute capabilities that are distributed to the instances of virtualized machines. Protecting the use of resources, and the data flow between or externally from them while maximizing the performance is the engineering challenge you can help to grow. We are looking for an engineer with the ability to learn and lead others in the areas of networking for VMs, such as: Software network switching; Routing network packet frames to VM instances; Network Virtual Function (VFs) capabilities provided by a network adapter’s advanced server device and the consuming VMs that are tied to them; Windows Subsystem for Linux (WSL) which makes the use of a Linux environment possible in Windows without the overhead of a virtualized machine. 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, building reliable, efficient, and inclusive systems software is 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 COGS, to delivering new features and capabilities to delight customers – that’s all us! To deliver on our vision, we are looking for a Senior Software Engineer who is motivated about the prospect of learning and driving innovation across our networking stack, across our partnering teams and across the industry. This is an opportunity that will help deepend your knowledge of networking, system architecture, distributed systems and will provide ample opportunities for industry wide impact. 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.

Job Responsibility:

  • Influence architecture requirements and portability of software across varied platforms and implement functionality using the latest software development life cycle techniques and tools
  • Ship quality code whether it is in kernel or in user mode and ensure it has diagnosability and observability built into it for production level usage
  • Support and contribute to an inclusive and collaborative team culture
  • Collaborate with internal and external partners to identify requirements, trends and opportunities
  • Participate and influence a culture with a focus on making customers successful and improving developer productivity
  • Embody our Culture and Values

Requirements:

  • Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR equivalent experience
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check
  • Experience with multi-threaded software development
  • Experience with software debugging
  • Understanding of virtual machines for Windows and Linux, and container based computer environments
  • Understanding of VM/Host architecture on Windows Server
  • Effective communication and collaboration skills
  • Proficiency in systems software concepts and experience developing APIs and services in a systems-level environment
  • Practical architectural skills supported by implementation experience
  • Proficiency in coding, debugging, testing, and problem-solving skills
  • Demonstrated experience delivering results across multiple release cycles
  • Experience with networking protocols and architecture
  • Thorough understanding of modern computer architectures found in desktop PCs and servers, including networking

Nice to have:

  • Master'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, or Python
  • OR Bachelor'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 equivalent experience

Additional Information:

Job Posted:
March 19, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
Job Link Share:

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