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Principal Software Engineer
Principal Software Engineer-March 2024
Mountain View
Mar 28, 2026
About Principal Software Engineer

Do you want to be at the forefront of innovating the latest hardware designs to propel Microsoft’s cloud growth? Are you seeking a unique career opportunity that combines both technical capabilities, cross team collaboration, with business insight and strategy?

Join our Strategic Planning and Architecture (SPARC) team within Microsoft’s Azure Hardware Systems and Infrastructure (AHSI) organization and be a part of the organization behind Microsoft’s expanding Cloud Infrastructure and responsible for powering Microsoft’s “Intelligent Cloud” mission. Microsoft delivers more than 200 online services to more than one billion individuals worldwide and AHSI is the team behind our expanding cloud infrastructure. We deliver the core infrastructure and foundational technologies for Microsoft's cloud businesses including Microsoft Azure, Bing, MSN, Office 365, OneDrive, Skype, Teams and Xbox Live.

SPARC is looking for a Principal software engineer. The successful candidate will be responsible for the development and evaluation of datacenter networking technologies to deliver leading-edge capabilities for Azure’s global customers, focusing on advanced congestion control, scalability, low latency, and high throughput. The work includes simulating architectural design and collaborating closely with other architects focused on future datacenter designs.

We are looking for a collaborative Principal Software Engineer to work directly with our product group and partner teams. You will work closely with other networking teams (Azure Networking and Core OS), and the hardware and other software teams building the accelerator. Key components for success in this role will be the ability to learn and adopt relevant new technologies, tools, methods and processes from Microsoft, industry, and the research community, while developing the team’s ability to consume these technologies.

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. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day.

Responsibilities

Collaborate with hardware teams to design novel transport systems targeting the 3–5-year timeframe, to address infrastructure efficiency goals.

Software modelling of network architecture and other building blocks to realistically simulate end-to-end performance at scale.

Collaborate with various partner teams in Microsoft (Azure cloud services, OS/Hyper-V software, Hardware design, etc.), to prototype and build suitable transport solutions and ensure end-to-end software-hardware solutions.

Software development in C++ and Python.

Design and code review of peer work.

Embody our culture and values.

Qualifications

Required 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.

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:Preferred Qualifications

Advanced degree preferably in Computer Science or related fields OR 10+ years equivalent professional work experience in Software Development with demonstrated track record of success in building scalable transports for data center networks.

Background in computer networking, with thorough understanding of system software (OS, Drivers, Firmware) and its interaction with the hardware platform.

Experience leading and driving complex projects.

Intellectual curiosity and a passion for learning and deploying new technologies.

Solid problem-solving skills, analytical capabilities, and attention to detail.

Familiarity with high performance networking hardware/architecture.

Verbal and written communication skills

Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $137,600 - $267,000 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 $180,400 - $294,000 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

Microsoft will accept applications for the role until May 31, 2024.

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 .

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