Principal Software Engineer--Teams

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As a Principal Software Engineer, you will define the future of collaboration in Microsoft Teams—architecting and delivering end‑to‑end features that span modern web or mobile front‑ends and cloud‑scale services. Beyond shipping high‑quality product increments, you will set the technical vision for our stack, mentor engineers across disciplines, and ensure our solutions meet rigorous standards for reliability, security, accessibility, and cost efficiency. In this role, you will operate at the intersection of user experience and platform engineering—translating product requirements into resilient, observable, and performant systems used by millions worldwide.

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.

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.
• Full-stack software development expertise, with experience in modern web UI development using JavaScript/TypeScript and frameworks such as React, and experience in mobile application development (Android or iOS) with proficiency in Kotlin, Java or Objective-C and Swift, or equivalent.
• Experience designing and operating distributed services on a major cloud (Azure preferred): microservices, REST/GraphQL, messaging, caching, storage.
• Experience building large-scale cloud-based services with 99.99%+ reliability and robust security practices, including familiarity with industry-standard authentication protocols and authorization approaches.
• Demonstrated ability to lead technical design, coordinate across multiple teams, and communicate clearly with engineering and product stakeholders.

• Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
  

• Partners with appropriate stakeholders to determine user requirements for a set of scenarios.
• Leads identification of dependencies and the development of design documents for a product, application, service, or platform.
• Leads by example and mentors others to produce extensible and maintainable code used across products.
• Leverages subject-matter expertise of cross-product features with appropriate stakeholders (e.g., project managers) to drive multiple group's project plans, release plans, and work items.
• Holds accountability as a Designated Responsible Individual (DRI), mentoring engineers across products/solutions, working on-call to monitor system/product/service for degradation, downtime, or interruptions.
• Proactively seeks new knowledge and adapts to new trends, technical solutions, and patterns that will improve the availability, reliability, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale and shares knowledge with other engineers.