Join to apply for the Umbundu Language Specialist - AI Trainer role at Invisible Expert Marketplace We’re looking for a highly skilled Umbundu language specialist who can bring linguistic depth, cultural context, and precision to training data. You’ll work with cutting-edge AI tools, evaluate and refine Umbundu text outputs, and provide expert feedback on grammar, syntax, semantics, style, and cultural appropriateness to strengthen model performance. On a typical day, you will review and annotate Umbundu content, assess AI-generated outputs for accuracy and fluency, identify and document error patterns, and collaborate with our team to refine prompts, evaluation methods, and linguistic guidelines. Fluency in Umbundu is required, along with demonstrated experience in translation, linguistics, language teaching, editing, or related professional work. Experience in training, coaching, or linguistic annotation is a plus. Clear communication skills, cultural knowledge, and attention to detail are essential. Ready to channel your Umbundu expertise into building the AI tools of tomorrow? Apply today and help shape the model that will support millions of Umbundu speakers worldwide. We offer a pay range of $8 to $65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and stable internet connection; company-sponsored benefits such as health insurance and PTO do not apply. Job title: Umbundu Language Specialist – AI Trainer Employment type: Contract Workplace type: Remote Seniority level: Mid-Senior #J-18808-Ljbffr