Software Engineer

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!, You will be responsible for design, architecture, and execution in your areas of responsibility, producing and operating high-quality scalable services, and collaboration with partners. We are looking for a Senior Software Engineer who values their craft, works thoughtfully and collaboratively, and helps create a positive and motivating team environement.

Core responsibilities include:

• 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.
• Supprot 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.

Other

• Embody our Culture and Values

• 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.

Other Requirements:

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., * 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.

• 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.

#W+DJOBS

Software Engineering IC4 - The typical base pay range for this role across the U.S. is USD $119,800 - $234,700 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 $158,400 - $258,000 per year.

Microsoft is a global technology company headquartered in Redmond, Washington. Our mission is to empower every person and every organization on the planet to achieve more. We develop, license, and support a wide range of software products, services, and devices that help individuals and businesses realize their full potential.

Our flagship products include the Microsoft 365 productivity cloud, Windows operating system, Azure cloud platform, and Dynamics 365 business applications. We are also a leader in areas such as artificial intelligence, cybersecurity, developer tools, and gaming through Xbox and Game Pass.

With operations in more than 190 countries and over 220,000 employees worldwide, Microsoft is committed to responsible innovation, inclusive economic growth, and sustainability. We work closely with governments, industries, and communities to ensure that technology serves the public good and helps address some of the world’s most pressing challenges.

As we celebrate our 50th anniversary in 2025, we continue to look forward—investing in AI, cloud, and quantum computing to shape the future of work, education, and society at large scale.