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I am a detail-oriented Data Annotation and QA Specialist with over four years of experience supporting AI projects across autonomous driving, geospatial, and agricultural domains. I excel at reviewing, tagging, and labeling data according to strict guidelines, maintaining accuracy and consistency under tight timelines in remote environments. I am reliable, adaptable, and eager to learn and apply new tools and guidelines.…I am a detail-oriented Data Annotation and QA Specialist with over four years of experience supporting AI projects across autonomous driving, geospatial, and agricultural domains. I excel at reviewing, tagging, and labeling data according to strict guidelines, maintaining accuracy and consistency under tight timelines in remote environments. I am reliable, adaptable, and eager to learn and apply new tools and guidelines.

Joseph Kipngeny Kiptanui

Data Annotator, QA Engineer, Data Scientist, +3

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I am a detail-oriented Data Annotation and QA Specialist with over four years of experience supporting AI projects across autonomous driving, geospatial, and agricultural domains. I excel at reviewing, tagging, and labeling data according to strict guidelines, maintaining accuracy and consistency under tight timelines in remote environments. I am reliable, adaptable, and eager to learn and apply new tools and guidelines.…I am a detail-oriented Data Annotation and QA Specialist with over four years of experience supporting AI projects across autonomous driving, geospatial, and agricultural domains. I excel at reviewing, tagging, and labeling data according to strict guidelines, maintaining accuracy and consistency under tight timelines in remote environments. I am reliable, adaptable, and eager to learn and apply new tools and guidelines.

Available to hire

I am a detail-oriented Data Annotation and QA Specialist with over four years of experience supporting AI projects across autonomous driving, geospatial, and agricultural domains.

I excel at reviewing, tagging, and labeling data according to strict guidelines, maintaining accuracy and consistency under tight timelines in remote environments. I am reliable, adaptable, and eager to learn and apply new tools and guidelines.

Skills

CVAT

Data Visualization

Python

Experience Level

CVAT

Expert

Data Visualization

Expert

Python

Expert

Language

English

Fluent

Swahili

Fluent

Work Experience

Freelance Data Annotator and QA Reviewer at CloudFactory

July 1, 2024 - November 6, 2025

Led pixel-level instance and semantic segmentation using CVAT, Labelbox, and SuperAnnotate with 98%+ QA pass rate. Conducted QA audits, reducing rework by 20% and boosting IAA by 8%. Updated class definitions and documentation to enhance onboarding efficiency by 30%. Maintained 99% on-time delivery within SLA windows through proactive communication. Exported and validated datasets in COCO JSON and segmentation masks for ML model training.

Data Annotator at RYU Data Projects

June 30, 2024 - June 30, 2024

Annotated satellite and aerial imagery for AI model training and agricultural analysis. Created precise polygonal and segmentation masks following project specifications. Participated in QA sessions to enhance annotation consistency and dataset quality.

Data Annotator at Sama

December 31, 2023 - December 31, 2023

Delivered high-quality image and LiDAR annotations for autonomous vehicle projects. Focused on labeling objects and environments for computer vision and sensor fusion models. Consistently surpassed 95% quality benchmarks while meeting tight deadlines.

Data Annotator at Sama

January 1, 2021 - January 1, 2023

Delivered high-quality image and LiDAR annotations for large-scale autonomous vehicle projects; reviewed labeled data for accuracy and evolving guidelines; consistently exceeded quality benchmarks while meeting tight production timelines.