CareerPlan

Principal Software Engineer

United States, Washington, RedmondFull-time$166k2026-09-02 → 2026-11-10

Core

Design and ship end-to-end AI systems including LLM-based services, retrieval pipelines, and agentic workflows optimized for safety, latency, and cost at cloud scale.

Role type

Principal Software Engineer (Applied AI/ML)

Builds

Production AI/ML systems, agentic workflows, and LLM services for real customer scenarios

Domain

Cloud-scale AI, Large Language Models, Agentic Systems

Deliverable

production ML models

Required skills

LLM/ML system architecture, agentic system design, model orchestration, RAG implementation, cloud service design, fine-tuning, evaluation frameworks, performance optimization, responsible AI practices

Preferred skills

Azure AI expertise, vector store integration, inclusive design standards

Technologies

Azure, Python, C#, C++, LLMs, SLMs, vector stores

Responsibilities

Lead technical direction for features and services, mentor engineers, participate in on-call/operational excellence, collaborate with research teams on model adaptation

Seniority

Principal, hands-on IC with strategy & mentorship