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Principal Software Engineer

United States, California, Mountain View💼 Full-time🗓 2026-06-18 → 2026-10-07

Core

Build software tools for validation and exploration of LLM optimization technologies, collaborating with ML researchers and system engineers.

Role type

Principal Software Engineer (LLM optimization & system engineering) (via careerplan.io/jobs/1970393556630574-principal-software-engineer-at-microsoft)

Builds

Software tools for LLM validation and optimization

Domain

Artificial Intelligence / Large Language Models / System Optimization

Deliverable

production ML models

Required skills

C, C++, C#, Java, JavaScript, Python, model scripting, kernel development, requirements scoping, solution estimation, work scheduling

Preferred skills

Deep Neural Network training, LLM serving, ML system optimization

Technologies

Python, C, C++, CUDA

Responsibilities

Collaborate with ML researchers and system engineers; Engage with partners to evaluate LLM performance and quality; Build software tools for LLM optimization validation; Perform software development in model scripting and kernel languages; Identify requirements and scope solutions.

Seniority

Principal, hands-on IC with strategic scope