Jobs and Careers

Principal Software Engineer

United Statesfull_timeVerifiedPosted 20 Oct 2025

💰 $304,200/yr($139,900/yr – $304,200/yr)

About the role

Are you passionate about building intelligent, scalable systems that power next-generation AI experiences? The Microsoft Copilot Studio team within the Business Industry Copilot (BIC) organization is at the forefront of enabling makers and developers to build, publish, and manage copilots that extend across Microsoft 365 and beyond. We are looking for solid Principal Software Engineer to join our team and lead the design and development of core capabilities in the Data Plane as part of hosting and running millions of agents. In this role, you will ensure these agents operate with exceptional speed and reliability, delivering high-performance and dependable experiences at scale.

We are hiring a Principal Software Engineer. As a Principal Software Engineer, you will play a pivotal role in shaping the architecture and execution of mission-critical services that enable agents to run on a large scale. You’ll work closely with product, design, and partner teams across Microsoft to deliver high-impact features that empower users and scale across millions of tenants.

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

Lead architecture, design, and implementation of scalable, reliable, and secure services in the Copilot Studio Runtime.
Collaborate with cross-functional teams to define and deliver end-to-end scenarios that span Azure, M365, and Power Platform ecosystems.
Mentor and guide engineers across the team, fostering a culture of technical excellence, inclusion, and continuous learning.
Partner with PMs and leadership to align engineering investments with product vision and customer needs.
Champion engineering best practices, including CI/CD, observability, and operational excellence.
Partner with Data Science and AI experts to transform what it means to build AI-first SaaS.
Embody our culture and values.

Qualifications

Required 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.
4+ years experience in service development, successfully shipping software across multiple releases in a SaaS environment.
Proven track record of technical leadership and delivering complex projects at scale.
Proficiency in C#, .NET, or equivalent languages and frameworks.
Experience with Azure or other cloud platforms.

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