Are you interested in building real-time communication technologies that enable voice, video, and AI-powered experiences across Microsoft products?The RTC Client & Core Media team develops foundational Real-Time Communications RTC technologies across mobile, web, desktop, and virtual desktop environments. Our team builds secure, reliable, and high-performance client platforms and software development kits SDKs that enable communication experiences across Microsoft products.We are looking for a Principal Software Engineer to help architect and build the next generation of real-time communication technologies, including platforms that support AI-powered and agentic communication experiences. In this role, you will provide technical leadership across complex engineering initiatives involving native mobile and client platforms, real-time communications, developer infrastructure, automation, and AI-assisted engineering.You will work across organizational boundaries to define technical direction, develop extensible architectures, improve engineering systems and practices, and deliver reliable solutions across Windows, iOS, and Android ecosystems. You will collaborate with engineering, product, security, privacy, and compliance teams to translate complex requirements into scalable technical solutions.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 the architecture, design, development, and delivery of complex software systems and client platform capabilities supporting real-time communications across mobile, desktop, web, and virtual desktop environments.
- Design and build secure, reliable, diagnosable, maintainable, and reusable native client libraries and SDK capabilities across Windows, iOS, and Android ecosystems.
- Define and drive technical solutions across multiple components and teams, identifying dependencies, evaluating architectural tradeoffs, and building alignment with engineering and partner organizations.
- Develop and improve AI-assisted and agentic engineering capabilities that support software development activities such as investigation, testing, validation, code review, reliability, and incident response.
- Improve engineering infrastructure, documentation, build and test automation, validation mechanisms, and development workflows to enable reliable and efficient AI-assisted engineering.
- Develop reusable engineering patterns, tools, and capabilities that can be adopted across teams while balancing common platform requirements with domain-specific needs.
- Establish engineering practices and validation mechanisms to evaluate the quality, reliability, security, a
