Principal Python Engineer

Job Summary

To support advanced AI systems, the fully remote Principal Python Engineer will design and build data pipelines, annotation tooling, and evaluation systems while working flexibly on a contract basis.

Key responsibilities

• Design, build, and optimize high-performance Python systems for AI data pipelines and evaluation workflows
• Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control
• Collaborate with data, research, and engineering teams to enhance model training and evaluation workflows

Required qualifications

• 5+ years of professional experience in production Python for large-scale infrastructure or platform engineering
• Deep expertise in designing distributed computing systems and managing concurrency with advanced asynchronous patterns
• Strong systems programming background with familiarity in Python internals, GIL limitations, and performance optimization
• Able to drive technical strategy and architectural decisions clearly and confidently
• Available to commit 20-40 hours per week