Microsoft

Principal Software Engineer

Microsoft
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2 days ago
Redmond, WA, USAStaff+
H1B sponsor

Base Salary

$143k - $304k/yr

Responsibilities

  • Design, build, and evolve the MDASH scanning engine for agent orchestration, multi-model routing, code understanding, vulnerability detection, reachability validation, and fix generation and verification.
  • Expand coverage across vulnerability classes, programming languages, frameworks, build systems, and codebase sizes, including large monorepos.
  • Integrate static and dynamic analysis, taint tracking, call-graph and data-flow analysis, fuzzing, and sandboxed execution into agent workflows.
  • Improve detection precision and recall, consistency, fix quality, scan performance, scalability, cost, and latency.
  • Build a secure, reliable, observable engine with strong isolation for untrusted code and telemetry for diagnosing agent behavior.
  • Collaborate with security researchers, applied scientists, model teams, and product managers to bring new techniques and models into production.
  • Lead design reviews, participate in code reviews and on-call rotations, mentor engineers, and help raise the team’s engineering standards.

Requirements

  • Bachelor’s degree in Computer Science or a related technical field and 6+ years of technical engineering experience coding in languages including C, C++, C#, Java, JavaScript, TypeScript, 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 with 8+ years of experience, or bachelor’s degree with 12+ years of experience, or equivalent experience.
  • Experience building production systems with large language models, including AI agents, multi-agent orchestration, tool calling, planning, context management, or code-understanding systems.
  • Experience with security scanners, static analysis, dynamic analysis, software composition analysis, compilers, or other program analysis tools.
  • Working knowledge of vulnerability classes including memory safety, injection, authentication and authorization, deserialization, path traversal, SSRF, and business-logic flaws.
  • Experience with taint analysis, data-flow and control-flow analysis, code property graphs, fuzzing, or symbolic execution.
  • Experience building distributed, high-scale cloud services on Azure, including containerized or sandboxed execution.
  • Familiarity with multiple software ecosystems and build systems across C/C++, C#, Java, JavaScript/TypeScript, Python, and cloud-native applications.

Benefits

  • Typical U.S. base pay range is USD $142,800-$274,800 per year, with a separate San Francisco Bay Area and New York City range of USD $188,000-$304,200 per year.
  • Certain roles may be eligible for benefits and other compensation.
  • The position is open for a minimum of five days, with applications accepted on an ongoing basis until filled.
  • Successful candidates must pass the Microsoft Cloud Background Check upon hire or transfer and every two years thereafter.
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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