• $50–$100 per hour equivalent, paid per accepted task
• 100% remote
• Part-time
• Under 20 hours a week, you choose when On your own schedule, write backend tasks for AI systems and assess the code, tests and solutions they produce. AI companies need software engineers to test and improve their systems on real backend engineering work. You design coding exercises that cover new features, along with bug fixes and refactoring, as well as performance improvements. You set up reproducible environments, write deterministic checks and provide reference solutions, then assess submitted work and explain the reasoning behind your decisions. This is that work, done remotely around your schedule.

What you'll do
• Write backend coding tasks that ask for new features or fixes to existing code
• Prepare assignments focused on refactoring and performance optimization
• Set up reproducible environments, write deterministic checks and provide reference solutions
• Review technical submissions for accuracy and clarity, then explain your technical reasoning Why this is worth your time
• Earn $50–$100 an hour equivalent, paid per accepted task
• Apply backend engineering to new features, code fixes, refactoring and performance optimization
• Work on coding tasks, their solutions and the checks used in AI training




• Fully remote and versátil, no fixed shifts, no commute Who this is for
• Professional fluency in English
• Hands-on expertise with a backend language such as Python, Java or Rust; Go, C++, TypeScript or Node.js; or a similar backend language
• A clear open-source contribution record or equivalent portfolio demonstrating experience with debugging software, automated tests, algorithms and data structures, performance bottlenecks, refactoring, code review, technical documentation, and scalable services and APIs
• No AI experience needed. Pay and details
• $50–$100 per hour equivalent; pay is per accepted task, as an independent contractor
• Part-time, under 20 hours a week; fully remote, Argentina

How to apply
1. Apply on OpenTrain (about two minutes). 2. Complete the application on the hiring platform. 3. If shortlisted, take a conversational AI interview with technical questions and a coding challenge, whenever it suits you. Ready to write and assess backend coding tasks for AI systems? Apply today. About OpenTrain AI OpenTrain AI connects experienced professionals with paid, part-time AI training work: shaping and improving the AI systems that companies are building right now.

📌 Software Engineer, Part-Time AI Coding Task Authoring (Argentina)
🏢 OpenTrain AI
📍 Argentina