Marvellous A.

Key Skills

Software

Appen

Clickworker

Top Subject Matter

AI training datasets

Machine learning training and evaluation

LLM/AI training data quality

Top Data Types

Text

Image

Top Task Types

Classification

Computer Programming/Coding

Freelancer Overview

Data labeling and quality assurance specialist across AI annotation platforms. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen, Clickworker, and Outlier. AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

AI Data Labeling & Annotation project showcase

TextClassification

Contributed to AI training by performing data labeling and quality assurance tasks on multiple annotation systems. Assessed labeled outputs for correctness and consistency with labeling instructions. Sustained accuracy and reliability while completing tasks efficiently within deadlines. • Performed quality assurance on labeled data • Evaluated outputs against guidelines • Ensured consistent annotation standards • Maintained accuracy under deadline pressure

2024 - 2025

AI training data annotator / task evaluator

ClickworkerText

Completed data annotation and dataset training support activities using established annotation work platforms. Focused on maintaining labeled dataset quality through careful review and validation. Applied structured attention to detail to deliver precise results for downstream model performance. • Reviewed and validated annotations • Supported evaluation of task responses • Ensured accurate labeling outputs • Worked independently to meet turnaround times

Not specified

Data labeling and quality assurance specialist across AI annotation platforms

AppenText

Performed data labeling and quality assurance tasks to support AI training workflows across multiple crowd AI training platforms. Evaluated task outputs to ensure accuracy, consistency, and adherence to dataset guidelines. Maintained high attention to detail and delivered reliable annotations under time constraints. • Conducted QA checks on labeled data • Performed task evaluation and accuracy verification • Ensured guideline compliance for annotations • Maintained productivity and consistency under deadlines

Not specified

Education

Work History