Python Software Engineer - AI Workflows

Python Software Engineer — AI Workflows About The Role What if your Python expertise could directly shape the infrastructure powering next-generation AI models? We're looking for a Senior Python Full-Stack Engineer to design and 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 frontier of AI development — not toy projects, but high-impact infrastructure that matters. Organization: AlignerrType: Hourly ContractLocation: RemoteCommitment: 20–40 hours/week What You'll Do Design, build, and optimize high-performance Python systems supporting AI data pipelines and evaluation workflowsDevelop full-stack tooling and backend services for large-scale data annotation, validation, and quality controlImprove reliability, performance, and robustness across existing Python codebasesCollaborate with data, research, and engineering teams to support model training and evaluationIdentify bottlenecks and edge cases in data and system behavior, and implement scalable, production-grade fixesParticipate in synchronous design reviews and iterate on system architecture decisions Who You Are 3–5+ years of professional experience writing production-grade PythonFull-stack developer with a strong systems programming backgroundWrites clean, maintainable code with proper use of linters, formatters, and testing frameworksExperienced integrating AI services and APIs, handling edge cases, and ensuring robust error reportingClear and effective written and verbal communicatorNative or fluent English speakerAble to commit 20–40 hours per week consistently Nice to Have Prior experience with data annotation, data quality pipelines, or evaluation systemsFamiliarity with AI/ML workflows, model training, or benchmarking infrastructureExperience with distributed systems or developer tooling at scale Why Join Us Work directly with leading AI research labs on production systems that matterFully remote and flexible — work from wherever you do your best thinkingFreelance autonomy with the structure and purpose of high-impact, technically challenging workGet hands-on experience at the cutting edge of AI infrastructure before it becomes mainstreamPotential for ongoing work and contract extension as projects evolve and new ones launch