Korean PDF Annotation Pro for AI Training

Mercor; San Francisco (CA); On-site; USD 60,000 - 90,000; Full time

Job summary

Mercor is seeking detail-oriented Korean annotators to build training data for document AI. You will identify and bound every meaningful region of Korean PDFs that contain multimodal elements and transcribe all text in Hangul, including hanja where present.

Attention to character-level accuracy is critical, and the role involves systematic taxonomy across varied layouts such as newspapers, forms, menus, and manuals. Collaboration and peer review are integral parts of the workflow.

Qualifications

• Native Korean speaker with full Hangul command, including hanja where it appears.
• Experience in bilingual transcription, translation, editorial work, or AI training data is preferred; reviewer experience ideal.
• Character-level accuracy is essential; exactness matters more than speed.
• Systematic with consistent taxonomy across hundreds of pages.

Responsibilities

• Source publicly accessible Korean PDFs containing at least one multimodal element and record the source.
• Annotate structure by bounding every meaningful region and assigning component type and reading-order index.
• Record relationships by linking regions to their parent figure or table.
• Transcribe faithfully in Hangul, including hanja, flagging unreadable regions.
• Capture page metadata: language, document type, source, page dimensions, and features like tables, formulas and handwriting.
• Review a colleague's work; every task is reviewed end-to-end by a second Korean expert.

Skills

Korean language

Hangul

Hanja

Transcription

Editorial work

Job description

Mercor is seeking detail-oriented Korean annotators to build training data for document AI. You will identify and bound every meaningful region of Korean PDFs that contain multimodal elements and transcribe all text in Hangul, including hanja where present.

Attention to character-level accuracy is critical, and the role involves systematic taxonomy across varied layouts such as newspapers, forms, menus, and manuals. Collaboration and peer review are integral parts of the workflow.