Principal Software Engineer - Backend
1/9/2026
Build and operate services for a globally scalable platform while defining new components and architectures. Collaborate effectively with multiple product development and engineering teams.
Working Hours
40 hours/week
Company Size
10,001+ employees
Language
English
Visa Sponsorship
No
Do you want to work on a product that is used by millions of people around the world daily, and growing rapidly? Do you care deeply about how software is designed with a focus on supporting global scale? Do you want to be part of a world-class team that continuously pushes the boundary of service and engineering excellence?
The Web Experience and Services Team is looking for a Principal Software Engineer who is passionate about working on high-scale geo-distributed services. These services power the infrastructure behind the Office web applications like Word, Excel, and PowerPoint, which are part of the Office 365 suite. We are gearing up to modernize our infrastructure and services to further push the limits of scalability and reliability. If you want hands-on experience in designing, building, and running global services in the M365 and Azure ecosystem – at a scale not often found in the industry - this is the role for you.
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
- Build and operate services of the new globally scalable platform, defining new components with understanding of service interdependence and limitations. Influence and create new designs and architectures.
- I have a passion for secure, reliable, scalable and maintainable code.
- Write code and test cases for feature development, do code reviews. Identifying opportunities to leveraging AI for making the organization more productive.
- Is able to identify new tech modernization opportunities, do quick POCs, showcase value and align partners on making it a successful platform / product.
- Work effectively with multiple product development and engineering teams.
- Work effectively with product development and engineering teams.
Qualifications
Required Qualifications:
- Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
- OR equivalent experience.
- Expertise in languages like C#, Java, Python, or JavaScript/TypeScript, and deep knowledge of performance, scalability, and software engineering best practices.
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 cloud platforms such as Azure, AWS, or Google Cloud, a strong interest in AI or related technologies, excellent communication and problem-solving skills, ability to work independently and in teams, and enthusiasm for learning and sharing new technologies are valued.
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.
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