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Kungu Duncan

Kungu Duncan

Data Annotation Specialist

Talent
NairobiMember since June 21, 2026
CVAT
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CVAT

About

Detail-oriented Data Annotation Specialist with 3+ years of experience delivering high-quality labeled datasets for machine learning and computer vision applications. Skilled in image and video annotation using CVAT and similar tools. Proven track record of achieving over 98% annotation accuracy while meeting tight deadlines in fast-paced remote environments.

Experience

Data Annotation Specialist - Remotask - Remote

(2023-01)

  • Annotated 120,000+ images and video frames for object detection and segmentation projects.
  • Achieved and maintained 98–99% annotation accuracy, consistently exceeding quality benchmarks.
  • Reduced annotation errors by 25% through rigorous quality control and guideline adherence.
  • Completed tasks 15% faster than average turnaround time, meeting all project deadlines.
  • Collaborated with distributed teams of annotators, reviewers, and project managers across multiple projects.
  • Performed preprocessing tasks including resizing, formatting, and dataset organization.

AI Data Annotator / Contributor - Outlier - Remote

(2022-06 - 2022-12)

  • Labeled and validated 50,000+ data samples for AI model training and evaluation.
  • Conducted peer reviews, improving overall dataset quality scores by 20%.
  • Maintained consistent adherence to annotation guidelines, ensuring uniform labeling across datasets.
  • Assisted in optimizing workflows, reducing annotation time per task by 10–15%.
  • Delivered high-quality outputs within strict deadlines across multiple concurrent projects.

Education

Bachelor of Science - Actuarial Science - Jomo Kenyatta University of Agriculture and Technology (JKUAT)

Skills

Data Annotation Specialist

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