JobsPrincipal Applied AI Engineer
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Principal Applied AI Engineer

Microsoft

Location

Redmond, WA

Type

Full-time

Posted

10/15/2026

Compensation

Not listed

Undergraduate with 5+ Years of Experience
H-1B FY202696.0% approval-64% YoY
👑 Elite sponsor

Job description

The Principal Applied AI Engineer will serve as a hands-on technical architect and senior developer for production agentic AI services within the Engineering Operations team at Microsoft. This role focuses on transforming Azure customer support through AI-first systems that enhance quality, security, and reliability. The engineer will define and implement architecture for next-generation AI agents, lead complex technical initiatives, and ensure production quality and reliability. The position emphasizes a growth mindset and collaboration to drive measurable customer and business impact.

Requirements

  • Bachelor's Degree in Computer Science or related technical field and 6+ years of technical engineering experience with coding in languages including C, C++, C#, Java, JavaScript, or Python.
  • 8+ years of professional software engineering experience designing, building, and operating production software systems.
  • Strong proficiency in C# and/or Python with demonstrated ability to design and implement 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.

Responsibilities

  • Architect and build production agentic AI systems including LLM orchestration and multi-agent workflows.
  • Write, review, and maintain production-quality C# and Python code.
  • Translate ambiguous customer support scenarios into clear technical requirements.
  • Establish architecture patterns, API and data contracts, and code quality expectations for AI services.
  • Design and implement evaluation frameworks using rubrics and simulation.
  • Ensure AI services meet demanding standards for correctness, availability, and scalability.
  • Embed responsible AI principles and privacy protections into system architecture.
  • Evaluate models and architectural approaches using evidence from experiments.
  • Partner with product managers and engineers to shape technical strategy.
  • Instrument systems and use data to improve automation accuracy and customer satisfaction.
  • Lead architecture reviews and resolve complex technical disagreements.
  • Mentor engineers in system design, software engineering, and applied AI.

Benefits

  • Employees at Microsoft are often offered comprehensive, “world-class” benefits—including health and mental-wellness programs, competitive pay with bonuses and stock awards, and retirement/savings options. Time-off and flexibility are common, with generous vacation and holidays, parental and caregiver leave, and flexible work schedules, alongside learning support, employee resource groups, product discounts, and matching-gifts/volunteering programs. Specific benefits can vary by region.

H-1B filing history

Public USCIS petition and DOL LCA counts · latest USCIS FY2026, LCA FY2026

Filing entity: Microsoft Corporation

As of Aug 23, 2026

Initial approvals

503

FY2026

Approval rate

96.0%

FY2026

LCA certified

3,062

FY2026

Entry-level share

5.7%

FY2026

Initial approvals YoY

-64%

Trend

LCA certified YoY

-83%

Trend

Initial approvals by fiscal year

Approval rate by fiscal year

Continuing vs initial approvals

LCA certified positions by quarter

LCA certified positions by fiscal year

Based on public USCIS and DOL filings; not a sponsorship guarantee.

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