Avinash T S

Key Skills

Software

Other

Labelbox

Scale AI

CVAT

SuperAnnotate

Appen

Top Subject Matter

Voice Data Collection / Speech Recognition

Top Data Types

Audio

Video

Image

Text

Top Task Types

Audio Recording

Bounding Box

Entity (NER) Classification

Action Recognition

Segmentation

Transcription

Freelancer Overview

Freelance Data Labeling Specialist – Image Annotation. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, Scale AI, and CVAT. Education includes Higher Secondary Education, Santhinikethan Public School. AI-training focus includes data types such as Image, Text, and Video and labeling workflows including Bounding Box, Entity (NER) Classification, and Action Recognition.

Labeling Experience

Freelance Data Labeling Specialist – Audio Transcription

AppenAudioTranscription

Audio transcription tasks were performed for various projects to support data annotation, mainly in conjunction with image and video datasets. My contributions included precise, time-stamped transcriptions and supporting QA processes to uphold data integrity. Strong communication and workflow management skills ensured the timely delivery of all audio-related assignments. • Generated accurate transcriptions from diverse audio samples. • Supported labeling efforts for multimodal datasets. • Conducted quality assurance on transcribed data. • Delivered all assignments punctually and with high fidelity.

Audio transcription tasks were performed for various projects to support data annotation, mainly in conjunction with image and video datasets. My contributions included precise, time-stamped transcriptions and supporting QA processes to uphold data integrity. Strong communication and workflow management skills ensured the timely delivery of all audio-related assignments. • Generated accurate transcriptions from diverse audio samples. • Supported labeling efforts for multimodal datasets. • Conducted quality assurance on transcribed data. • Delivered all assignments punctually and with high fidelity.

2022 - Present

Freelance Data Labeling Specialist – Semantic Segmentation

LabelboxImageSegmentation

Conducted semantic segmentation for both autonomous vehicle and medical imaging datasets to support model training. Responsibilities included segmenting regions of interest, verifying mask accuracy, and flagging problematic areas for further review. I collaborated with machine learning specialists to align on segmentation protocol and best practices. • Performed pixel-wise image segmentation for critical use cases. • Checked segmentation masks for accuracy and completeness. • Regularly updated annotation guidelines with client teams. • Ensured all medical and autonomous datasets met quality standards.

Conducted semantic segmentation for both autonomous vehicle and medical imaging datasets to support model training. Responsibilities included segmenting regions of interest, verifying mask accuracy, and flagging problematic areas for further review. I collaborated with machine learning specialists to align on segmentation protocol and best practices. • Performed pixel-wise image segmentation for critical use cases. • Checked segmentation masks for accuracy and completeness. • Regularly updated annotation guidelines with client teams. • Ensured all medical and autonomous datasets met quality standards.

2022 - Present

Freelance Data Labeling Specialist – Video Annotation

CVATVideoAction Recognition

Labeled video frames for action recognition and object tracking across more than 500 video clips for AI model development. My work included annotating objects and actions, segmenting relevant video frames, and maintaining dataset accuracy. I regularly communicated progress to project managers and addressed ambiguous cases through team discussions. • Annotated video frames for object tracking and action recognition. • Segmented sequences to isolate events for AI training. • Maintained high accuracy in all video-based labeling tasks. • Worked with remote AI teams to resolve labeling ambiguities.

Labeled video frames for action recognition and object tracking across more than 500 video clips for AI model development. My work included annotating objects and actions, segmenting relevant video frames, and maintaining dataset accuracy. I regularly communicated progress to project managers and addressed ambiguous cases through team discussions. • Annotated video frames for object tracking and action recognition. • Segmented sequences to isolate events for AI training. • Maintained high accuracy in all video-based labeling tasks. • Worked with remote AI teams to resolve labeling ambiguities.

2022 - Present

Freelance Data Labeling Specialist – Text Annotation (NER & Sentiment)

AppenTextEntity Ner Classification

I performed Named Entity Recognition (NER) and sentiment labeling on over 100,000 text records for natural language processing projects. Projects included annotating text data for classification, sentiment analysis, and entity extraction. I maintained strict adherence to quality benchmarks and adjusted annotation strategies based on team feedback. • Conducted entity extraction and sentiment analysis on large-scale datasets. • Ensured annotation consistency for NLP training data. • Coordinated with engineers to clarify entity definitions. • Used various online annotation tools for efficient workflow.

I performed Named Entity Recognition (NER) and sentiment labeling on over 100,000 text records for natural language processing projects. Projects included annotating text data for classification, sentiment analysis, and entity extraction. I maintained strict adherence to quality benchmarks and adjusted annotation strategies based on team feedback. • Conducted entity extraction and sentiment analysis on large-scale datasets. • Ensured annotation consistency for NLP training data. • Coordinated with engineers to clarify entity definitions. • Used various online annotation tools for efficient workflow.

2022 - Present

Freelance Data Labeling Specialist – Image Annotation

LabelboxImageBounding Box

As a freelance Data Labeling Specialist, I expertly annotated over 50,000 images utilizing bounding boxes, polygons, and keypoints for object detection models. I maintained high annotation accuracy above 98%, ensuring quality for clients in domains such as autonomous driving, healthcare imaging, and e-commerce. My role also included managing dataset QA reviews and refining labeling guidelines with machine learning engineers. • Performed precise image annotations for object detection. • Managed quality assurance and flagged ambiguous data for review. • Collaborated with ML teams to improve labeling consistency. • Used multiple industry-standard labeling platforms effectively.

As a freelance Data Labeling Specialist, I expertly annotated over 50,000 images utilizing bounding boxes, polygons, and keypoints for object detection models. I maintained high annotation accuracy above 98%, ensuring quality for clients in domains such as autonomous driving, healthcare imaging, and e-commerce. My role also included managing dataset QA reviews and refining labeling guidelines with machine learning engineers. • Performed precise image annotations for object detection. • Managed quality assurance and flagged ambiguous data for review. • Collaborated with ML teams to improve labeling consistency. • Used multiple industry-standard labeling platforms effectively.

2022 - Present

Education

Work History