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Y
Yathu G.

Yathu G.

AI Data Annotator , LLM Trainer

United Kingdom flagCoventry, United Kingdom

Key Skills

Software

AppenAppen
Anno-MageAnno-Mage
ArgillaArgilla
Axiom AI
ClickworkerClickworker
AWS SageMakerAWS SageMaker
RoboflowRoboflow
Label StudioLabel Studio
LionbridgeLionbridge
MercorMercor
OneFormaOneForma
RemotasksRemotasks
TolokaToloka
TelusTelus
Data Annotation TechData Annotation Tech
DatatroniqDatatroniq

Top Subject Matter

Healthcaredi, Medical
Real Estate
Ecommerce

Top Data Types

ImageImage
VideoVideo
TextText

Top Task Types

Bounding BoxBounding Box
PolygonPolygon
SegmentationSegmentation
ClassificationClassification
Entity (NER) ClassificationEntity (NER) Classification
Point/Key PointPoint/Key Point
Object DetectionObject Detection
Text GenerationText Generation
Question AnsweringQuestion Answering
Text SummarizationText Summarization
RLHFRLHF
Fine-tuningFine-tuning
Red TeamingRed Teaming
TranscriptionTranscription
Evaluation/RatingEvaluation/Rating
Data CollectionData Collection
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

Detail-oriented AI Data Specialist with 7+ years working hands-on with content, language data, and search systems, and 2+ years applying large language models (ChatGPT, Claude, Gemini) in live production workflows. Experienced in evaluating, rating, and ranking AI-generated text; writing and reviewing high-quality model responses; building taxonomies and labelling schemes; and working consistently to detailed annotation guidelines at scale. Strong written English, sharp factual accuracy, and a proven track record of producing reliable, repeatable, high-quality data output across SEO, content, and machine-learning-assisted projects.

Labeling Experience

AI Content & Data Consultant (Independent

TextTextClassificationClassification

Ran ongoing AI quality-review workflows, evaluating and rating large-language-model outputs (ChatGPT, Claude, Gemini) for accuracy, relevance, tone and helpfulness, and selecting the stronger of competing responses against written rubrics. • Authored and refined prompt–response pairs and reference answers used to test and improve content-generation models, flagging hallucinations, factual errors and policy issues.

2025 - 2026

Education

S

Sri Lanka Institute of Information Technology

Master of Science in Information Management , Master of Science in Information Management

Master of Science in Information Management
2019 - 2022

Work History

Z

Zinerge Limited

AI Data Annotation Specealist

London
2025 - Present