Backend Python Engineer

Backend Python Engineer (AI Training) About The Role What if your Python expertise could directly shape how the world's most advanced AI systems write and reason about code? We're looking for experienced Backend Python Engineers to evaluate AI-generated code, build complex algorithmic challenges, and help push the boundaries of what AI can do with software. This is a fully remote, flexible contract role built for senior Python developers who want meaningful, high-impact work alongside cutting-edge AI research labs — on their own schedule. Organization: AlignerrType: Hourly ContractLocation: RemoteCommitment: 10–40 hours/week What You'll Do Review and evaluate AI-generated Python code for correctness, efficiency, and adherence to PEP 8 and industry best practicesDesign and develop complex backend algorithmic solutions and data processing scripts that challenge AI reasoning at its limitsWrite clear, human-readable explanations of backend logic, architectural decisions, and code quality judgementsIdentify edge cases, security vulnerabilities, and failure modes in AI-generated API logicProvide structured, expert-level feedback that directly informs how AI models learn to write better code Who You Are Deep expertise in Python, including modern frameworks such as Django, Flask, and FastAPI3–5+ years of professional experience writing production-level Python codeStrong grasp of advanced Python language features, performance considerations, and software design principlesExceptional written communication skills — you can explain complex technical concepts clearly and preciselyBachelor's degree or higher in Computer Science or a related technical fieldSelf-motivated and comfortable working independently in an async environment Nice to Have Prior experience with data annotation, RLHF, or AI evaluation workflowsBackground in API security, distributed systems, or data engineeringFamiliarity with software testing methodologies and edge case analysis Why Join Us Work directly with leading AI research labs on some of the most technically demanding projects in the fieldFully remote and flexible — work when and where suits you bestFreelance autonomy with the structure of meaningful, task-based workMake a tangible impact on how AI understands, writes, and reasons about real-world codePotential for ongoing work and contract extension as new projects launch