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Visithra Rajagopal

Visithra Rajagopal

AI Data Annotation Specialist - Machine Learning Projects

INDIA flag
Hosur, India
$5.00/hrIntermediateImeritAppen

Key Skills

Software

iMeritiMerit
AppenAppen

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
TextText
VideoVideo

Top Label Types

Bounding Box
Prompt Response Writing SFT
Segmentation
Transcription

Freelancer Overview

I am a detail-oriented AI data annotation specialist with hands-on experience in bounding box annotation, data labeling, and quality control for diverse machine learning projects. My background includes annotating text, images, audio, and video using tools like Ango, with a strong emphasis on accuracy, consistency, and adherence to project guidelines. I have worked on high-volume annotation tasks for clients such as Crowdgen and Innodata, supporting the development of computer vision and NLP models. My experience also includes search engine evaluation, content moderation, desktop and mobile testing, and transcription, allowing me to contribute to a wide range of AI training data initiatives. I am committed to maintaining high quality standards, meeting tight deadlines, and collaborating effectively with global teams to help deliver reliable datasets for AI systems.

IntermediateEnglishTamil

Labeling Experience

Appen

Data Annotator

AppenVideoPrompt Response Writing SFT
Perform detailed data labelling tasks for AI training, ensuring accuracy and consistency across projects. ·Annotate text, images and video data to support machine learning model development. ·Maintain quality standards by following project-specific guidelines and conducting regular reviews. ·Contribute to improving dataset usability and overall AI system performance.

Perform detailed data labelling tasks for AI training, ensuring accuracy and consistency across projects. ·Annotate text, images and video data to support machine learning model development. ·Maintain quality standards by following project-specific guidelines and conducting regular reviews. ·Contribute to improving dataset usability and overall AI system performance.

2025
iMerit

Bounding Box QC

ImeritImageBounding Box
·Review and validate bounding box annotations to ensure accuracy, consistency, and adherence to project guidelines. ·Identify and correct annotation text, and flagging issues in the Ango tool for review and resolution. ·Maintain quality standards and turnaround times while handling high-volume annotation tasks.

·Review and validate bounding box annotations to ensure accuracy, consistency, and adherence to project guidelines. ·Identify and correct annotation text, and flagging issues in the Ango tool for review and resolution. ·Maintain quality standards and turnaround times while handling high-volume annotation tasks.

2025

Education

S

Srinivasan Engineering College

Bachelor of Engineering, Electronics and Communication

Bachelor of Engineering
2010 - 2014

Work History

A

APPEN - CROWDGEN

DATA ANNOTATOR

Hosur
2025 - Present
I

imerit

BOUNDING BOX QC

Hosur
2025 - Present