Principal Software Engineer

** Overview*
* The AI Transformation team within Microsoft Frontier Company is reimagining how the company operates in the age of AI. We work across the business to transform critical end-to-end workflows, bringing people, AI agents, and systems together to create fundamentally new ways of working.

Our team brings together engineering, applied AI, program leadership, and business transformation to move rapidly from opportunity to working solution. We operate with a builder mindset: hands-on, highly collaborative, comfortable with ambiguity, and biased toward action. Our goal is not simply to add AI to existing processes, but to build AI-native operating models and reusable solutions that improve how Microsoft Frontier Company works and accelerate transformation at scale.

As a Principal Software Engineer, you will bring strong software design and engineering expertise to build AI-powered solutions that transform how Microsoft Frontier Company operates. You'll work in small, multidisciplinary teams to rapidly move from prototype to production, using AI and agentic coding tools to build reliable applications, agents, integrations, and workflows that deliver measurable operational impact.

Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

** Responsibilities*
* ** Understand User Requirements*
* + Partners with stakeholders (e.g., project manager, technical lead) to determine user requirements for a set of scenarios. Leverages a variety of feedback channels to incorporate insights into future designs or solution fixes. Leads incorporation of appropriate continuous feedback loops measuring customer value, usage patterns, and other actionable metrics of value. Begins to determine additional critical metrics.

** Design*
* + Leads efforts and discussions for the architecture of aspects of products/solutions (e.g., design, cost). Creates proposals for architecture and design documents and leads testing of hypotheses and proposed solutions. Shares and acts on findings from investigations, owns design decisions, and oversees the other team members. Leads the development of design documents for designs or User Stories and determines the technology that will be leveraged and how they will interact.

Leads design discussions with the team and shares findings/learnings from investigations, holding ownership for design decisions. Leads efforts to assure system architecture meets security and compliance requirements and expectations.

+ Independently creates and mentors' others for a clear and articulated plan for testing and assuring the quality of solutions, and defines success for outcomes of tests (e.g., unit tests). Identifies needs for a broad versus selected approach in testing mechanisms and makes informed decisions to implement the most effective tests. Leads efforts to add new tests, remove antiquated tests, and aggregate tests to improve the overall test suite.

Improves recommendations to the team and augments test cases to ensure that solutions have good test coverage. Leads efforts to continually integrate automation features when planning for testing.

+ Leads identification of dependencies and the development of design documents for a product, application, service or platform. Leads identification of other teams and technologies that will be leveraged, how they will interact, and when one's own system may provide support to others. Leads efforts to determine back-end…