Microsoft

Microsoft

Posted via Microsoft Careers

Principal Software Engineer

Posted Oct 29, 2026

Role at a glance

Job function
Software Engineering & IT Software Engineering
Salary
$142.8K – $304.2K/yr
Location
United States
Work arrangement
Remote
Employment
Full-time
Experience
6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.

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Role Summary

AI-generated

This Principal Software Engineer role on the Substrate App Platform team helps build the next-generation platform that lets internal and external developers and agents access M365 data and APIs via Work IQ. The role involves deep technical problems, defining new best practices, and collaborating across teams.

What You'll Do

  • Design, develop, and maintain scalable AI-forward APIs, model context protocols (MCPs), and services, and contribute to design documentation
  • Develop and implement reusable, high-quality code for services and features
  • Lead feature development from concept through launch
  • Break down large work items into smaller tasks and provide accurate estimations
  • Serve as a Designated Responsible Individual (DRI) on call to monitor systems for degradation, downtime, or interruptions and restore...
  • Provide guidance and mentorship to other team members

Generated from the employer's posting. Verify important details before applying.

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Qualifications

Bachelor's degree in computer science or a related technical field plus 6+ years of coding-focused engineering experience, or equivalent experience.

Required

  • Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages...
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter

Preferred

  • Master's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages...
  • Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages...
  • 10+ years of professional experience in full-stack software development
  • Experience shipping complex, enterprise-scale software with emphasis on reliability, scalability, and maintainability
  • Proficiency in a back-end programming language (e.g., Node.js, C#, Java)
  • Experience with RESTful APIs and their design and microservices architecture

Original job description

Content provided by the employer
View on company site
Overview
As a Principal Software Engineer, on the Substrate App Platform team, you will help the next generation platform for internal and external developers and agents to access M365 data and APIs via Work IQ. This role offers the opportunity to think about deep technical problems, define new best practices, collaborate across teams to achieve shared goals, and grow through continuous learning and innovation alongside your teammates.
 
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

  • Design, develop, and maintain scalable Ai forward API’s, model context protocols (MCP’s) and services. Identify dependencies and contribute to design documentation with minimal oversight.

  • Develop and implement reusable, high-quality code for services and features.

  • Lead feature development from concept through launch.

  • Break down large work items into smaller tasks and provide accurate estimations.

  • Serve as a Designated Responsible Individual (DRI) working on-call to monitor system/product feature/service for degradation, downtime, or interruptions and gains approval to restore system/product/service for simple problems.

  • Stay current with technologies to improve reliability, performance, and scalability.

  • Provide guidance and mentorship to other team members



Qualifications
  • Bachelor'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 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

  • Master'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 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. 
  • 10+ years of professional experience in full-stack software development.
  • Experience shipping complex, enterprise-scale software with emphasis on reliability, scalability, and maintainability.
  • Proficiency in a back-end programming language (e.g., Node.js, C#, Java).
  • Experience with RESTful APIs and their design and microservices architecture.


Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $274,800 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 $188,000 - $304,200 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.

Microsoft

About the company

Microsoft

Large Enterprise

Microsoft is a global technology leader that empowers individuals and organizations to achieve more through innovative software, services, and devices. Founded in 1975, the company is best known for its flagship products like the Windows operating system and Microsoft Office suite. In addition to personal computing, Microsoft is a leader in cloud computing with its Azure platform, providing a range of solutions for businesses to enhance productivity and efficiency. With a strong commitment to sustainability and accessibility, Microsoft continues to drive technological advancements that shape the future of work and learning.

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