Find remote AI training and data labeling jobs open to applicants in Bulgaria.
Transcribe short Korean recordings for $14 per hour in a long-term, part-time role with about one flexible hour of work each day. You will also review audio and flag unclear segments.
Posted Jan 7, 2026
Transcribe short French audio recordings, verify unclear segments, and label unusable audio for $15 per hour. This ongoing contract offers about one flexible hour of work each day.
Posted Jan 7, 2026
Create and verify Python-based mechanical engineering problems that help train and evaluate AI models. This flexible contract role pays $10-$45 per hour and requires advanced English, Python, and relevant engineering expertise.
Posted Dec 12, 2025
Design and verify complex Python and SQL problems that test full-pipeline data science skills for advanced AI systems. This worldwide contractor role pays $50 per hour for fewer than 20 hours per week.
Posted Dec 3, 2025
Evaluate and attack AI models and agents to find safety risks and security flaws. This flexible remote contract pays $40 per hour for less than 20 hours per week.
Posted Nov 17, 2025
Segment recycling images by outlining individual objects with polygons in CVAT and the Segment Anything tool. This entry-level contract role pays $5 per hour and values accuracy and careful visual review.
Posted Nov 11, 2025
Work remotely on part-time LLM security projects for $40 per hour. Design attacks, test AI agents and RAG pipelines, and document risks using your cybersecurity and penetration testing skills.
Posted Oct 6, 2025
Review and improve AI-generated answers to automotive engineering questions for $40 per hour. This flexible, part-time contract requires 3+ years of automotive engineering experience and Python skills.
Posted Oct 1, 2025
AI training work helps prepare and review examples used by artificial-intelligence systems. Depending on the individual role, tasks may include labeling images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. The specific work available to applicants located in Bulgaria is defined by each live posting.
OpenTrain handles hiring for the public roles on OpenTrain, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. The individual posting contains the authoritative information for that opportunity, including its eligibility and role-specific requirements.
