If you're passionate about building cutting-edge solutions that empower teamwork and communication, we want to hear from you! Microsoft Teams is the central hub for teamwork, bringing together people, content, and tools to enhance team engagement and effectiveness. It plays a pivotal role in Microsoft’s vision for modern work, modern life, and modern education. We are revolutionizing how people communicate and collaborate across the globe. We are seeking a **Principal Software Engineer** for the Microsoft Teams Core Messaging group. This person will collaborate with a multi-functional group to deliver next generation innovations and partner with product and engineering teams to invent and deliver on the future for Teams AI Agent and Messaging products.  In this role, you will + Collaborate and work across multiple disciplines to deliver innovation. + Communicate priorities and tradeoffs to lay out a path for achieving a vision. + Inspire without authority across teams and motivate individuals to work together towards common goals. + Thrive in a bit of chaos and create the structure needed to execute smoothly at scale. Our culture is inclusive, customer-driven; our team members come from diverse backgrounds, are passionate and loyal to coworkers and our products, and grounded in our customer and business needs. Our team has a sense of artisanship and accountability and provides its members many opportunities for learning and career growth. 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** + 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. **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. + 6+ years of experience with React, TypeScript, HTML, and CSS. + Proven understanding of modern web technologies, front-end performance optimization, and responsive design. + Experience with integrating front-end applications with backend services (REST, GraphQL, or other APIs). + Familiarity with state management tools such as Redux, MobX, or similar frameworks. + Proven problem-solving and analytical skills, with a track record of leading complex software projects. **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:** + Bachelor's Degree in Computer Science or related technical field AND 10+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python + OR 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 equivalent experience. + Excellent written and verbal communication skills, with the ability to collaborate effectively in a remote team environment. + Ability to work independently, manage multiple priorities, and deliver high-quality work on schedule. Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $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 Microsoft will accept applications for the role until August 21, 2025. 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 (https://careers.microsoft.com/v2/global/en/accessibility.html) .