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Sourin Saha

Sourin Saha

Data Annotation Specialist | Computer Vision & AI Training Data

India flagKolkata, India
$3.50/hrIntermediateCrowdsourceData Annotation TechImerit

Key Skills

Software

CrowdSourceCrowdSource
Data Annotation TechData Annotation Tech
iMeritiMerit
MercorMercor
TolokaToloka
TelusTelus

Top Subject Matter

No subject matter listed

Top Data Types

Geospatial Tiled ImageryGeospatial Tiled Imagery
ImageImage

Top Task Types

Question AnsweringQuestion Answering
TrackingTracking
MappingMapping
Evaluation/RatingEvaluation/Rating
Bounding BoxBounding Box
RelationshipRelationship
Object DetectionObject Detection

Freelancer Overview

I have hands-on experience in data labeling and AI training data, having worked as a freelance annotator on projects involving global map rating, image annotation, and audio annotation. My roles required strict adherence to detailed guidelines, high attention to detail, and consistency across large task volumes, ensuring quality and accuracy in every task. With a background in business administration and foundational knowledge in computer science from Harvard’s CS50x, I am comfortable working with structured data workflows, automation tools like n8n, and data management platforms such as Google Sheets. I thrive in environments where accuracy, reliability, and process improvement are valued, and I am eager to contribute my disciplined execution and adaptability to collaborative, data-driven teams.

IntermediateHindiEnglish

Labeling Experience

Tendem Junior

DocumentEvaluation Rating
Executed multiple paid junior-level tasks involving deep web research, structured data work, content production, and spreadsheet system building, within instruction-heavy, QA-driven workflows. Scope included: SEO content production (30 articles, batch workflow) FX conversion system engineering (multi-currency spreadsheet automation) Dashboard design & KPI analytics (Google Sheets) Web research, fact-checking, and data validation GenAI-assisted workflows with manual QA control Work Characteristics: Instruction-sensitive execution High consistency across outputs Hybrid workflow (manual + GenAI + logic systems) Exposure to real-world, multi-domain data tasks

Executed multiple paid junior-level tasks involving deep web research, structured data work, content production, and spreadsheet system building, within instruction-heavy, QA-driven workflows. Scope included: SEO content production (30 articles, batch workflow) FX conversion system engineering (multi-currency spreadsheet automation) Dashboard design & KPI analytics (Google Sheets) Web research, fact-checking, and data validation GenAI-assisted workflows with manual QA control Work Characteristics: Instruction-sensitive execution High consistency across outputs Hybrid workflow (manual + GenAI + logic systems) Exposure to real-world, multi-domain data tasks

2026 - Present

Bounding Box & Description Specialist

Don T DiscloseImageBounding Box
Rated Images, Mapped Consistency and Similarities, Handled Edge Cases, Created Bounding Boxes, Mapped Object ID's, Created Descriptions.

Rated Images, Mapped Consistency and Similarities, Handled Edge Cases, Created Bounding Boxes, Mapped Object ID's, Created Descriptions.

2025 - 2026

GIS Rater

Don T DiscloseGeospatial Tiled ImageryQuestion Answering
GIS Rating. Query Relevance Judging. Query Response Judging. Map Tracking. Research.

GIS Rating. Query Relevance Judging. Query Response Judging. Map Tracking. Research.

2025 - 2025

Education

S

Swami Vivekananda Institute of Modern Science and Technology

Bachelor of Business Administration (Honors), Business Administration

Bachelor of Business Administration (Honors)
2021 - 2021
J

Jharkhand Academic Council

Higher Secondary School Certificate, Commerce

Higher Secondary School Certificate
2018 - 2018

Work History

S

Shivani Bhandar

Co-Owner

Kolkata
2022 - Present
R

Rajwada Group

Property Advisor

Kolkata
2025 - 2025