Microsoft

Principal Software Engineer

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

Base Salary

$143k - $304k/yr

Responsibilities

  • Build LLM-powered agents that translate engineering intent into implementation, testing, code review, and remediation workflows.
  • Design orchestration, tool interfaces, context retrieval, durable state, ownership, and recovery for repository and build-system workflows.
  • Create agent evaluations and regression tests, debug model and tool failures, and optimize quality, reliability, latency, and cost.
  • Implement secure, bounded, observable, and attributable agent execution with scoped permissions, approvals, and human review.
  • Deliver cross-team integrations from validation through adoption and measure verified task completion, review usefulness, intervention, rework, cycle time, defects, and cost.
  • Set technical direction, write and review code and tests, simplify architecture, and mentor engineers.

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.
  • Ability to meet Microsoft, customer, and/or government security screening requirements, including the Microsoft Cloud Background Check.
  • Preferred: Master's degree and 8+ years of experience, or bachelor's degree and 12+ years of experience, or equivalent experience.
  • Hands-on experience building and delivering LLM-powered applications or agents that use tools and execute multi-step workflows.
  • Strong software engineering fundamentals in coding, debugging, automated testing, abstraction, interfaces, and maintainability.
  • Experience designing and operating distributed systems or cloud services with state management, observability, security, reliability, and recovery from partial failures.
  • Experience evaluating agent behavior using task-level tests, traces, and failure analysis.
  • Principal-level technical leadership across teams, including architecture, influence without direct authority, and mentoring.
  • Experience with multi-agent coordination, durable workflow execution, repository-aware context retrieval, model routing, developer tools, build and test infrastructure, CI integrations, automated code review, or repair workflows.
  • Experience with extensibility frameworks, plugin architectures, protocol design, declarative programming models, manifest-driven extensibility, Microsoft Copilot, Azure AI, or similar agentic platforms.
  • Experience scaling AI-powered engineering workflows and connecting agent usage to measurable engineering outcomes.
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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