Python Software Engineer - AI Workflows

Seattle

**Python Software Engineer --- AI Workflows** **About The Role** What if your Python expertise could directly shape the infrastructure behind next-generation AI? We're looking for a senior full-stack Python engineer to build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve their models. This is a fully remote, flexible contract role for an experienced engineer who wants to work on real production systems at the cutting edge of AI --- not toy projects, but high-impact infrastructure that influences how the world's most advanced models are built. * Organization: Alignerr * Type: Hourly Contract * Location: Remote * Commitment: 20--40 hours/week **What You'll Do** * Design, build, and optimize high-performance Python systems supporting AI data pipelines and evaluation workflows * Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control * Improve reliability, performance, and safety across existing Python codebases * Collaborate with data, research, and engineering teams to support model training and evaluation workflows * Identify bottlenecks and edge cases in data and system behavior, then implement scalable fixes * Participate in synchronous design reviews to iterate on architecture and implementation decisions **Who You Are** * 3--5+ years of professional experience writing production-grade Python * Strong full-stack developer with a solid systems programming background * You write clean, maintainable code --- linters, formatters, and testing frameworks are second nature * Experienced in integrating AI services and APIs, handling edge cases, and building robust error reporting * A clear communicator --- both in writing and in synchronous discussions * Native or fluent English speaker * Available to commit 20--40 hours per week **Nice to Have** * Prior experience with data annotation, data quality, or evaluation systems * Familiarity with AI/ML workflows, model training, or benchmarking pipelines * Experience with distributed systems or developer tooling **Why Join Us** * Work on cutting-edge AI infrastructure alongside leading research labs * Fully remote and flexible --- work when and where it suits you * Freelance autonomy with the structure of meaningful, high-impact engineering work * Tackle real production challenges that directly shape how next-generation AI models are built * Potential for ongoing work and contract extension as new projects launch