The English-language job board for Spain
88,000+ live jobsRemote, Global·Full-time·Added over a year ago
This job was published a year ago
42 open roles
US$8 - US$65 an hour
Gross, as stated in the ad.
Full-time hours
Per the ad.
Fully remote
Per the ad.
Have the right to work in Spain
Invisible Technologies doesn't mention sponsorship in the ad.
Master's degree
“A master's or PhD in Bulgarian language, linguistics, or a closely related field is ideal; peer-reviewed publications, teaching experience, or hands-on linguistic analysis projects signal fit.” — per the ad.
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 high-speed internet; company-sponsored benefits such as health insurance and PTO do not apply.
A master's or PhD in Bulgarian language, linguistics, or a closely related field is ideal; peer-reviewed publications, teaching experience, or hands-on linguistic analysis projects signal fit. Clear, metacognitive communication-"showing your work"-is essential.
Are you a Bulgarian language expert eager to shape the future of AI? Large-scale language models are evolving from clever chatbots into powerful engines of linguistic discovery. With high-quality training data, tomorrow's AI can democratize world-class education, keep pace with cutting-edge research, and streamline communication for Bulgarian speakers everywhere. That training data begins with you-we need your expertise to help power the next generation of AI.
We're looking for Bulgarian language specialists who live and breathe Bulgarian grammar, syntax, morphology, spelling, phonology, and pragmatics. You'll challenge advanced language models on topics like verb conjugation, noun declension, sentence structure, aspect, regional dialects, formal and informal speech, and the nuances of the Bulgarian writing system-documenting every failure mode so we can harden model reasoning.
On a typical day, you will converse with the model on language scenarios, verify factual accuracy and logical soundness, capture reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics.
Job title: Bulgarian Language Specialist - AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Mid-Senior Level
Ready to turn your Bulgarian language expertise into the knowledge base for tomorrow's AI? Apply today and start teaching the model that will teach the world.
Invisible Technologies is an applied AI services and operations company that trains, evaluates, and deploys AI models for enterprises. Its website states it has trained over 80% of the world's leading AI models and offers a platform spanning data processing, expert sourcing, model evaluations, and governed AI agents, serving industries such as banking, healthcare, insurance, life sciences, and the public sector. The company was established in 2015 and reports a team of 250+ people, with recognition including a 2024 Deloitte Technology Fast 500 listing.
or browse Mid-level·Remote·Education & EdTech
This role involves training large-scale language models using business and management expertise. You will evaluate model reasoning through business scenarios and provide structured feedback.
This role involves training AI models by reviewing and annotating STEM-related content in Marathi and English. You will evaluate technical accuracy and refine AI outputs to improve model performance.
This role involves reviewing and annotating AI-generated code to improve large-scale language models.
Chinese translators assess and refine AI-generated translations between Chinese and English, annotating errors and improving model behavior. Work is remote as an independent contractor.
Train advanced AI models by applying your insurance expertise to real-world scenarios. You will evaluate model reasoning in English and French to improve financial literacy and risk analysis.
You will train large-scale language models using your neuroscience expertise to improve scientific reasoning. The role involves verifying factual accuracy and documenting model failures.
As a Sound Engineering Specialist, you will train AI models by discussing complex audio system design and troubleshooting. You will validate engineering accuracy and document model reasoning failures.
You will train large-scale language models by simulating real-world administrative scenarios and documenting errors. The role offers an hourly rate between $8 and $65 based on experience and location.
You will train large-scale language models by verifying code correctness and documenting failure modes. The role offers an hourly rate based on expertise and location.
You will train large-scale language models by testing them on complex operational scenarios. The role offers an hourly rate based on experience and location. This is a remote contract position.
You will train large-scale language models by evaluating technical IT scenarios and systems architecture. The role offers an hourly rate based on expertise and location.
This role involves training AI models by reviewing and annotating Mongolian content for accuracy and fluency.
US$120k - US$160k
🇬🇧 🇪🇸€26k
🇬🇧€27k
€24k
