Thai/English Bilingual AI Data Annotator & Evaluator

CNTXT AI; United States; Remote; USD 34,000 - 83,000; Part time

Job summary

CNTXT AI is seeking a fully remote, hourly contractor to support Thai localization and translation for AI data projects. You will evaluate prompts, annotate content, and ensure cultural nuance and accuracy across sources, with a focus on high-quality Thai outputs and strict editing standards.

Candidates should hold a Bachelor's degree or higher, native or near-native Thai, and C1 English proficiency, plus strong editorial judgment and cross-time-zone communication. Remote work offered globally.

Qualifications

• Native or near-native Thai with strong writing skills.
• Minimum C1 English proficiency for interpreting prompts and guidelines.
• Excellent editorial judgment in tone, punctuation, and culture.
• Ability to fact-check localization details precisely using reliable sources.

Responsibilities

• Annotate, translate, and review content for Thai AI datasets.
• Evaluate AI-generated responses for accuracy and cultural relevance.
• Write and refine prompts and model outputs to ensure quality guidance.
• Maintain consistency in terminology, tone, and locale across tasks.

Skills

Thai localization

English proficiency (C1)

Editing and proofreading

Content evaluation

Education

Bachelor's degree or higher

Job description

This is a fully remote, hourly contractor role supporting AI data and language projects on a project-based, flexible hour basis. Project scopes vary and may include:

• Data annotation: labeling, classifying, and structuring documents, tables, and other content to support AI training datasets.
• LLM evaluation: reviewing AI-generated responses for accuracy, reasoning quality, coherence, and cultural/linguistic appropriateness.
• Content generation: writing high-quality prompts and model responses, or recording high-quality voice samples, to guide AI learning across diverse topics.
• Localization QA: ensuring terminology, tone, cultural nuance, and locale-specific details (units, references, names, dates) are consistently accurate across outputs.

You will apply senior-level Thai localization and translation judgment alongside minimum C1 English proficiency to ensure terminology, tone, and cultural nuance are consistently accurate across use cases.

Profile Requirements

• Bachelor's degree or higher, preferably in Translation, Linguistics, Localization, Communications, or a related field.
• Native or near-native Thai proficiency with strong writing and editing skills.
• Minimum C1 English proficiency (reading/writing) for interpreting prompts, source materials, and evaluation guidelines.
• Excellent editorial judgment in register, tone, punctuation, inclusivity, and cultural nuance, with extreme attention to detail.
• Ability to identify meaning drift, ambiguity, locale inconsistencies, and subtle errors, and to explain corrections clearly in writing.
• Ability to rigorously fact-check localized content (units, references, names, dates) using reliable sources and consistent reasoning.
• Ability to identify reasoning gaps, methodological errors, and unclear explanations even when language is fluent.
• Reliable, self-directed, and able to deliver consistent quality with clear communication and responsiveness across time zones.

Preferred Experience

• Professional localization or translation experience.
• Previous experience with AI data training, annotation, or evaluation.
• Familiarity with MQM/LQA concepts (severity, category, and root-cause thinking) for consistent quality decisions.
• Familiarity with CAT tools and QA workflows.

About CNTXT AI

CNTXT AI builds artificial intelligence products and data solutions with a focus on making AI accurate, safe, and globally relevant for impact. Our work spans data services, custom AI solutions, and proprietary AI products, with deep expertise in Arabic-native and secure, sovereign solutions.