Mar 06, 2026
Fidelity Investments
Job Description: Principal AI Engineer The Role Fidelity Labs is looking for a Full-stack Software Engineer to help us build Generative AI powered applications for investment. You will join a new startup team to apply cutting edge Agentic AI technologies to build exciting new products, from ideation to deployment. What You will Work on Design, build, and integrate agentic applications (LangGraph and/or Google ADK) end-to-end. Develop and maintain APIs with FastAPI and REST best practices. Implement prompt/context engineering for LLM agents. Create indexing and retrieval pipelines (embeddings, vector stores, RAG). Integrate external tools, services, and data sources into agent workflows. Build, connect, and maintain user-facing apps with React and Next.js. Lead UI architecture, state management, and performance optimization. Write clean, tested, production-quality code on both frontend and backend. The Experience and Skills You Bring...
Professional Diversity Network
Merrimack, NH, USA
Full-Time
