Backend Python Developer

Backend Python Developer (AI Training) About The Role What if your Python expertise could directly influence how the next generation of AI understands, writes, and reasons about code?

We're looking for experienced Backend Python Developers to work alongside the world's leading AI research labs — evaluating AI-generated code, building complex algorithmic challenges, and helping push the boundaries of what AI can do.

This is a fully remote, flexible contract role designed for seasoned Python engineers who want to put their skills to work on something genuinely cutting-edge.

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 production-quality standardsDesign and develop complex backend algorithmic solutions and data processing scripts that challenge AI reasoning at its limitsWrite clear, human-readable explanations for backend logic, architectural decisions, and code behaviourIdentify edge cases, security vulnerabilities, and logical flaws in AI-generated API and backend logicProvide structured, detailed feedback that directly shapes how AI models learn to write better code Who You Are Deep Python expertise — you've written production-level Python and it shows3–5+ years of professional backend development experienceSolid command of modern Python frameworks including Django, Flask, or FastAPIStrong grasp of advanced language features, design patterns, and software architecture principlesExceptional written communication skills — you can explain complex technical concepts clearly and conciselyDegree in Computer Science or a related technical field, or equivalent professional experience Nice to Have Prior experience with data annotation, RLHF, or AI evaluation workflowsFamiliarity with API security best practices and vulnerability identificationBackground in algorithm design, competitive programming, or systems-level developmentExperience writing technical documentation or code reviews at scale Why Join Us Work on genuinely cutting-edge AI projects alongside leading research labs and teamsFully remote and flexible — work when and where it suits you, on your own scheduleFreelance autonomy with the substance of meaningful, high-impact technical workMake a direct, tangible impact on how AI understands and generates code used by millionsTraining and onboarding support provided — hit the ground running from day onePotential for ongoing work and contract extension as new AI projects launch