Freelance AI Trainer – Software Engineer(Backend) – Remote

Remote (US preferred) | $25–$100/hr | Flexible | Min. 15 hrs/weekLabelbox • Shape the data that powers frontier AILabelbox is building the data engine that accelerates breakthrough AI and we’re looking for backend engineers to help refine, evaluate, and improve AI-generated code powering next-generation applications.What You’ll Do⚡ Code Evaluation: Review AI-generated backend code (Node.js, Python, Java, Go) for correctness, scalability, efficiency, and clarity. 🛠️ Hands-On Development: Write backend solutions for server-side and API challenges across different difficulty levels. 📖 Knowledge Sharing: Provide clear, developer-friendly explanations of architectural decisions, logic, and strategies. 🚩 Quality Assurance: Identify ambiguities, edge cases, or errors in AI-generated solutions.You’re a Great Fit If You HaveStrong written English communication skills for explaining backend conceptsExpertise in backend development: Node.js, Python, Java, Go, REST APIs, databases, async programming3–5 years of experience with frameworks & platforms (Express, Django, Spring Boot, microservices, cloud platforms a plus)Bachelor’s (or pursuing) in Computer Science/related field. Master’s/PhD welcome, not required(Bonus) Experience with RLHF, data labeling, or AI trainingWhy Join Us✅ Fully remote & flexible: Work anywhere, anytime. ✅ High impact: Improve AI models for top AI labs & Fortune 500 companies. ✅ Backed by elite investors: SoftBank, Andreessen Horowitz, Kleiner Perkins, and more.Interview Process1️⃣ Initial screening with Zara, our AI interviewer, in English. 2️⃣ Technical Zara interview to assess backend expertise (distributed systems, microservices, frameworks).Ready to Apply? We review candidates on a rolling basis and will reach out if your background matches an active project.👉 Apply today and help shape the future of backend engineering in AI.