Join to apply for the Bulgarian Trilingual Language Specialist – AI Trainer role at Invisible Expert Marketplace

Are you fluent in Bulgarian, English, and at least one additional language, and eager to apply your linguistic expertise to the future of AI? Large-scale language models are transforming how people communicate, learn, and access information across cultures. The training data starts with you: delivering high-quality multilingual input to help AI better serve global communities with accuracy, nuance, and inclusivity.

We’re looking for a Bulgarian Trilingual Language Specialist who can bring deep linguistic knowledge, cultural awareness, and multilingual proficiency to AI training. You’ll work with cutting-edge AI tools to evaluate, annotate, and refine model outputs in Bulgarian, English, and your third language, helping improve cross-lingual reasoning, translation quality, and naturalness.

On a typical day, you will review AI-generated text for grammatical accuracy, idiomatic expression, and cultural appropriateness; annotate and correct linguistic errors; assess multilingual translations for clarity and fidelity; and collaborate with our team to strengthen evaluation protocols and language-specific guidelines.

Responsibilities:

• Review AI-generated text for grammatical accuracy, idiomatic expression, and cultural appropriateness
• Annotate and correct linguistic errors in Bulgarian, English, and the third language
• Assess multilingual translations for clarity and fidelity
• Collaborate with the team to strengthen evaluation protocols and language-specific guidelines

Qualifications:

• Fluency in Bulgarian and English, plus proficiency in at least one additional language
• Prior experience in translation, linguistics, content evaluation, or AI training is strongly preferred
• Clear communication skills, attention to detail, and the ability to articulate linguistic nuances across languages

Ready to apply your multilingual expertise to shape the AI of tomorrow? Apply today and help build tools that empower communication for people worldwide.

Employment details

• Employment type: Contract
• Workplace type: Remote
• Seniority level: Mid-Senior

Compensation

We offer a pay range of $6 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 reliable internet connection; company-sponsored benefits such as health insurance and PTO do not apply.