Microsoft
Technology & SoftwareDirect employer career site

Principal Software Engineer

Location
Redmond, WA
Job type
Full-time
Level
Executive
Experience
10+ years
Education
Bachelor's degree
Listed
28 days ago

Skills & highlights for this role

  • distributed systems
  • runtime architecture
  • C#
  • C++
  • plugin architectures
  • protocol design

Also useful

  • LLM-based systems
  • agentic workflows
  • AI orchestration
  • MCP

About the role

Architect and evolve the core runtime infrastructure to support. Agent-to-Agent (A2A) and Multi-Agent Protocols (e.g., MCP). Declarative and code-based extensibility models. Runtime patching, flighting, and dynamic configuration. Runtime extensibility through skills. Design and implement scalable orchestration patterns for agent collaboration, including delegation, sub-agent invocation, and shared memory contexts.

Partner with cross-functional teams to ensure runtime stability, performance, and security. Drive innovation in agentic patterns such as proactive agents, long running tasks, async workflows, and dynamic skill selection. Contribute to the platform roadmap and influence long-term technical strategy.

Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. OR equivalent experience. 10+ years of experience in software engineering with a focus on distributed systems, runtime architecture, or platform engineering.

Proven track record of technical leadership at scale, ideally in runtime or orchestration systems. Deep understanding of extensibility frameworks, plugin architectures, and protocol design. Solid coding skills in C#, C++, or equivalent systems-level languages. Experience with LLM-based systems, agentic workflows, or AI orchestration is a plus. Familiarity with declarative programming models and manifest-driven extensibility.

Demonstrated ability to lead cross-org initiatives and influence without authority.

Read the original posting

From Microsoft's careers page, first listed on Rolev.ai on October 11, 2026. Rolev.ai is not the employer.

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Common questions

Where is the Principal Software Engineer job at Microsoft located?

This Principal Software Engineer position at Microsoft is located in Redmond, WA. Always check Microsoft's application page for specific state eligibility or relocation policies.

What qualifications are required for Principal Software Engineer at Microsoft?

For the Principal Software Engineer role, Microsoft highlights 10+ years of relevant experience; a bachelor's degree; experience with distributed systems, runtime architecture, C#, C++, plugin architectures, protocol design. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Principal Software Engineer position at Microsoft?

This listing links directly to Microsoft's application page. You can apply directly on Microsoft's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.