Senior Software Engineer - Networking
Confirmed on the employer's own hiring board on Nov 7, 2026. First seen by Alion on Oct 30, 2026. Microsoft scores B on the Alion truth index.
Would you like to help build the networking foundation that powers Windows, Azure, and Windows Server? Our team develops core networking and TCP/IP and QUIC technologies that provide reliable, secure, and high-performance connectivity to more than one billion monthly active users.
As part of our team, you will architect, design, and implement features in the Windows networking stack. You will work on TCP/IP, transport and routing protocols, packet processing, connection management, performance, reliability, and network security. You will analyze complex networking behavior using packet captures, telemetry, tracing, and protocol-level diagnostics.
You will also help evolve standards-based protocols, collaborate with networking experts across Microsoft and the industry, and work with standards bodies such as the IETF. This Senior Software Engineer role offers the opportunity within the Windows CoreOS Networking Team to solve challenging systems problems and advance protocols for modern and post-quantum security requirements.
At Microsoft, our mission-to empower every person and every organization on the planet to achieve more-guides how we partner with customers to deliver trusted, impactful solutions. With a growth mindset culture, we innovate responsibly and measure success by shared progress-people, teams, and customers. Join us to do meaningful work that changes the world and helps shape what’s next for everyone.
Responsibilities
- Architect, design and implement features in the Windows networking stack.
- Conduct analysis and do focused investigations based on customer cases related to the core networking areas using a variety of mechanisms such as logging, packet capture, telemetry data.
- Debug, analyze, design, and implement fixes for defects found in the networking stacks.
- Collaboratively work with Azure, Office, and various other teams at Microsoft.
- Learn and keep up with networking standards-based protocols with the goal of building out great functionality to help customers.
Qualifications
Required Qualifications
- 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.
Preferred Qualifications
- Experience with networking protocols and architecture.
- Experience in driver/kernel level software.
- Solid coding, debugging, testing, and problem-solving skills.
- Solid communication and collaboration skills.
- 8+ years of software development experience.
- 5+ years of industry experience with either C/C++ or Rust.
#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 $160,200 - $261,000 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
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.