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K
Koushik Halder

Koushik Halder

Data Annotation & Labeling Specialist (Freelance Remote)

India flagDiamond Harbour, India
$20.00/hrEntry LevelOther

Key Skills

Software

Other

Top Subject Matter

AI/ML Model Training Data
Audio Transcription
Speech-to-Text AI Data

Top Data Types

ImageImage
AudioAudio
VideoVideo

Top Task Types

ClassificationClassification
TranscriptionTranscription

Freelancer Overview

Data Annotation & Labeling Specialist (Freelance Remote). Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, University of Calcutta (2020) and Higher Secondary Education, Diamond Harbour High School (2017). AI-training focus includes data types such as Image and Audio and labeling workflows including Classification and Transcription.

Entry LevelEnglishBengaliHindi

Labeling Experience

Audio Transcriptionist (Freelance Remote)

OtherAudioTranscription
As a freelance Audio Transcriptionist, I transcribed audio and video files into clear, structured text. I ensured transcripts maintained proper formatting, grammar, and clarity to facilitate downstream AI/NLP work. This experience demanded accuracy, attention to detail, and the ability to handle multiple accents and challenging audio conditions. • Transcribed audio with varying quality and speaker backgrounds. • Maintained formatting standards for training-ready text datasets. • Delivered all projects remotely and on schedule. • Supported AI training tasks involving linguistic data.

As a freelance Audio Transcriptionist, I transcribed audio and video files into clear, structured text. I ensured transcripts maintained proper formatting, grammar, and clarity to facilitate downstream AI/NLP work. This experience demanded accuracy, attention to detail, and the ability to handle multiple accents and challenging audio conditions. • Transcribed audio with varying quality and speaker backgrounds. • Maintained formatting standards for training-ready text datasets. • Delivered all projects remotely and on schedule. • Supported AI training tasks involving linguistic data.

2022 - Present

Data Annotation & Labeling Specialist (Freelance Remote)

OtherImageClassification
As a freelance remote Data Annotation & Labeling Specialist, I labeled and annotated datasets for AI/ML model training using established guidelines. I ensured high accuracy by performing error checking and validation on the data. My work included image, text, and data categorization tasks, significantly improving overall dataset quality. • Labeled images and text for supervised machine learning projects. • Performed rigorous quality control and consistency checks. • Used spreadsheets and remote annotation tools as primary software. • Delivered project outputs within tight deadlines.

As a freelance remote Data Annotation & Labeling Specialist, I labeled and annotated datasets for AI/ML model training using established guidelines. I ensured high accuracy by performing error checking and validation on the data. My work included image, text, and data categorization tasks, significantly improving overall dataset quality. • Labeled images and text for supervised machine learning projects. • Performed rigorous quality control and consistency checks. • Used spreadsheets and remote annotation tools as primary software. • Delivered project outputs within tight deadlines.

2021 - Present

Education

U

University of Calcutta

Bachelor of Science, Biology

Bachelor of Science
2020 - 2020
D

Diamond Harbour High School

Higher Secondary Education, Science

Higher Secondary Education
2017 - 2017

Work History

L

Laxmi Kamal Bhandar

Data Management Assistant

Diamond Harbour
2020 - Present
S

Self-Employed

Home Tutor

Diamond Harbour
2018 - 2024