Principal Full Stack Software Engineer

Job Description:

Note: Fidelity will not provide immigration sponsorship for this position.

The Role

We are seeking a highly skilled Principal Full Stack Software Engineer to design, build, and operate intelligent business solutions across Microsoft Power Platform, Microsoft Copilot Studio, and Azure AI Foundry. This position serves as a technical leader, driving the implementation of AI Agents and ensuring strong engineering discipline, enterprise security, and operational readiness.

You will develop end-to-end solutions ranging from user experiences in Power Apps and Power Pages to Python-based integration services and APIs, grounding AI solutions in enterprise data. You will also establish engineering patterns for agent tool-calling, orchestration, lifecycle management, and systems integration.

This role is ideal for an engineer with strong full‑stack fundamentals and hands-on experience building agentic AI systems (tool/function calling, orchestration, state/memory, and reliability controls).

The Skills and Expertise You Bring

Required Qualifications

• Proven experience delivering end-to-end full stack solutions, including backend services and front-end/app experiences.
• Hands-on experience building AI agents or copilots, including orchestration and tool/function calling.
• Experience across Power Platform (Power Apps, Power Automate, Dataverse, Power Pages) at enterprise scale.
• Experience using Microsoft Copilot Studio to design and deploy AI-powered agents.
• Strong Python engineering background for APIs and integration services.
• Strong understanding of data fundamentals, including modeling, retrieval patterns, and handling structured/unstructured data for AI grounding.
• Demonstrated technical leadership, including mentorship, establishing standards, and influencing cross-functional teams.

Preferred Qualifications

• Experience building agent solutions with Azure AI Foundry (assistants/agents, tool invocation, state management).
• Experience with enterprise integration patterns across Dataverse, Microsoft 365, and external systems via secure APIs and connectors.
• Experience with GenAI retrieval patterns (e.g., ingestion + retrieval + grounding), vector stores, and search.
• Experience implementing AI engineering controls (evaluation, monitoring/telemetry, testing, and production operations).

The Team

As part of this team, you will:

• Lead design and implementation of AI Agents using Azure AI Foundry or Copilot Studio, creating assistant-style experiences that automate tasks, call tools, and maintain conversational context.
• Develop function/tool-calling patterns enabling secure interaction with enterprise APIs, workflows, data systems, and business operations.
• Create reliable, production-ready agent behaviors with structured output controls, error handling, fallbacks, and observability.
• Deliver AI-powered solutions across Copilot Studio and Power Platform, embedding agents into Power Apps, Power Pages, and workflows.
• Build and maintain Python integration services and APIs that connect AI agents and applications to enterprise systems.
• Collaborate with data engineering teams to ensure solutions are grounded in governed, high-quality data.
• Drive engineering excellence through architecture guidance, code reviews, pattern creation, and lifecycle management (CI/CD, monitoring, operational readiness).

Certifications:

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Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles. Some roles may have unique onsite requirements. Please consult with your recruiter for the specific expectations for this position.

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.