Microsoft

Principal Applied AI Engineer

Microsoft
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20 hours ago
Redmond, WA, USAStaff+
H1B sponsor

Responsibilities

  • Architect and build production agentic AI systems with LLM orchestration, multi-agent workflows, RAG pipelines, tool integrations, memory and state management, and human-in-the-loop experiences.
  • Write, review, and maintain production-quality C# and Python code, including reusable components, reference implementations, prototypes, and platform capabilities.
  • Own end-to-end technical delivery from requirements and experimentation through implementation, deployment, operation, and continuous improvement.
  • Define architecture patterns, API and data contracts, code quality expectations, evaluation practices, deployment strategies, and observability standards.
  • Develop evaluation frameworks using rubrics, golden datasets, simulation, judge models, and offline and online evaluation.
  • Ensure production services meet standards for correctness, availability, latency, scalability, cost, safety, and reliability, including incident response and root cause analysis.
  • Design responsible and secure AI systems with privacy protections, prompt-injection defenses, tool authorization, data boundaries, action controls, auditability, and fail-safe behavior.
  • Evaluate models, frameworks, platforms, and architectural approaches using experiments and production telemetry.
  • Influence product and platform roadmaps and partner across product, research, platform, and Azure service teams.
  • Use operational data to improve automation accuracy, case volume reduction, resolution time, engineering efficiency, and customer satisfaction.
  • Lead architecture reviews, resolve technical disagreements, align partner organizations, and mentor engineers across teams.

Requirements

  • Bachelor's degree in Computer Science or a related technical field and 6+ years of technical engineering experience with coding in languages including C, C++, C#, Java, JavaScript, or Python, or equivalent experience.
  • 8+ years of professional software engineering experience designing, building, and operating production software systems is preferred.
  • Strong proficiency in C# and/or Python and experience designing production-quality services and distributed systems.
  • Experience with applied AI systems, including LLM-based applications, prompt engineering, RAG architectures, agent frameworks, or machine learning services.
  • Experience with cloud platforms, preferably Azure, and cloud-native engineering practices including microservices, APIs, containers, CI/CD, infrastructure as code, and observability.
  • Ability to influence technical direction and align multiple teams without direct management authority.
  • A master's degree in Computer Science, Artificial Intelligence, Machine Learning, or a related technical field is preferred.
  • Experience implementing agent security patterns such as prompt-injection defense, identity propagation, least-privilege tool access, data-boundary enforcement, approval gates, and auditable actions.
  • Ability to move between strategic architecture and detailed implementation while debugging complex interactions across models, prompts, tools, data, and distributed services.
  • Business acumen and experience connecting technical investments to measurable customer outcomes.
  • Track record of mentoring senior engineers and raising engineering standards without formal people management responsibilities.
  • Background in customer support engineering, supportability, diagnostics, or customer experience platforms is a strong plus.
Microsoft

About Microsoft

10,000+ employees

Microsoft develops operating systems, productivity software, cloud services, developer tools, and consumer devices for individuals, enterprises, and governments. Its main products include Windows, Microsoft 365, Azure, Visual Studio/GitHub, Xbox, and LinkedIn; revenue comes from software subscriptions and licenses, cloud consumption, hardware sales, and advertising. Founded in 1975 and headquartered in Redmond, Washington, Microsoft is a public company traded on Nasdaq.

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