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Posted 24 July, 2026

Data Annotator

SAI Group
Kolkata,WB,India Full Time
Reference: 135_759305_50


We are seeking a detail-oriented and reliable Data Annotator to label, classify, and validate data used to train and improve Artificial Intelligence (AI) and Machine Learning (ML) models. The ideal candidate should have excellent attention to detail, follow annotation guidelines accurately, and maintain high-quality standards while working with text, images, audio, or video datasets.


Key Responsibilities

  • Annotate and label text, image, audio, or video datasets according to project guidelines.
  • Review and verify annotated data to ensure accuracy and consistency.
  • Identify and report ambiguous or incorrect data.
  • Perform quality checks and correct annotation errors.
  • Follow annotation standards and documentation.
  • Collaborate with QA teams, data scientists, and project managers.
  • Meet daily productivity and quality targets.
  • Maintain confidentiality and data security throughout the annotation process.
  • Assist in improving annotation processes and documentation.

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