Key Skills

Software

CVAT

Label Studio

Top Subject Matter

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Freelancer Overview

I am a detail-oriented Data Annotation Specialist with several years of hands-on experience supporting AI and machine learning projects through high-quality data labeling. My expertise spans annotating, reviewing, and validating large-scale image, video, and text datasets for computer vision and NLP applications, using tools like CVAT, Roboflow, and Label Studio. I am skilled in creating bounding boxes, polygons, segmentation, and key points for object detection and classification tasks, as well as handling NLP annotation such as NER and sentiment analysis. My work consistently meets rigorous quality and deadline standards, and I am comfortable managing datasets, performing QA checks, and collaborating with teams to optimize data pipelines for model performance. I am passionate about contributing to impactful AI solutions by ensuring data accuracy and integrity at every stage.

Labeling Experience

Senior Data Annotation Specialist

CVATImageObject Detection

As a Senior Data Annotation Specialist, I annotated thousands of images and videos for computer vision and AI model development. I performed object detection, segmentation, and classification tasks using CVAT and Label Studio with a high degree of accuracy. Additionally, I optimized and prepared datasets leveraging Roboflow for preprocessing, augmentation, and format conversions. • Consistently delivered high-quality, accurate labels while meeting strict project deadlines. • Performed systematic quality assurance to ensure compliance with client and internal guidelines. • Collaborated with project managers and ML engineers to refine project workflows and boost data quality. • Maintained thorough documentation and reporting across multiple projects.

As a Senior Data Annotation Specialist, I annotated thousands of images and videos for computer vision and AI model development. I performed object detection, segmentation, and classification tasks using CVAT and Label Studio with a high degree of accuracy. Additionally, I optimized and prepared datasets leveraging Roboflow for preprocessing, augmentation, and format conversions. • Consistently delivered high-quality, accurate labels while meeting strict project deadlines. • Performed systematic quality assurance to ensure compliance with client and internal guidelines. • Collaborated with project managers and ML engineers to refine project workflows and boost data quality. • Maintained thorough documentation and reporting across multiple projects.

2022

Data Annotator

Label StudioTextEntity Ner Classification

In the role of Data Annotator, I labeled image and text datasets for AI model training across diverse domains. My work focused on tasks such as Named Entity Recognition (NER), sentiment analysis, and text classification. I followed detailed annotation protocols and met daily production and quality benchmarks. • Conducted peer review sessions and corrected annotation errors on a regular basis. • Improved annotation accuracy through continuous feedback and periodic updates to guidelines. • Successfully managed productivity and ensured output aligned with project expectations. • Used tools like Label Studio and CVAT to handle varied annotation assignments.

In the role of Data Annotator, I labeled image and text datasets for AI model training across diverse domains. My work focused on tasks such as Named Entity Recognition (NER), sentiment analysis, and text classification. I followed detailed annotation protocols and met daily production and quality benchmarks. • Conducted peer review sessions and corrected annotation errors on a regular basis. • Improved annotation accuracy through continuous feedback and periodic updates to guidelines. • Successfully managed productivity and ensured output aligned with project expectations. • Used tools like Label Studio and CVAT to handle varied annotation assignments.

2020 - 2022

Education

Work History