Principal Software Engineer, Agent Services (CoreAI)
 Microsoft | |
 United States, Washington, Redmond | |
 Oct 16, 2025 | |
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OverviewYou're joining Core AI, the team at the forefront of redefining how software is built and experienced. We create the foundational platforms, services, and developer experiences that power next-generation applications using Generative AI, enabling developers and enterprises to unlock the full potential of AI to build intelligent, adaptive, and transformative software. As a Principal Software Engineer on the Agentic Core Services Team, you will own the design and architecture of cloud-native, distributed platforms that power agentic applications at scale. You'll lead initiatives to improve service reliability and developer agility, ensuring our infrastructure meets enterprise-grade guarantees for performance, resiliency, and security. You will influence how developers interact with our platform-from programming models and user experiences to the orchestration of agent-based AI applications-while driving technical strategy and mentoring other engineers. This role offers the opportunity to integrate cutting-edge AI research, including multi-modal capabilities (text, audio, video), into real-world agentic applications and shape the future of intelligent software systems. 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. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day.
ResponsibilitiesOwn the architecture and design of complex, distributed systems that power agentic applications at scale, ensuring performance, resiliency, and security across cloud-native environments. Lead technical strategy and drive improvements in service reliability and developer agility, influencing platform direction and enabling faster innovation for enterprise-grade AI solutions. Mentor and guide other engineers, providing technical leadership through design reviews, code reviews, and architectural decisions that raise the bar for quality and maintainability. Collaborate across teams and disciplines to integrate multi-modal AI capabilities (text, audio, video) into agentic applications, ensuring seamless developer experiences and compliance with Microsoft standards. Establish and enforce best practices for coding, testing, and operational excellence, including security, observability, and telemetry for large-scale distributed systems. Drive cross-team initiatives and resolve complex dependency challenges, ensuring end-to-end reliability and scalability for mission-critical services. | |