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Pius J.

Pius J.

AI Data Annotator/ AI Trainer

United Kingdom flagSouthampton, England

Key Skills

Software

Data Annotation TechData Annotation Tech
MindriftMindrift
MercorMercor
Micro1

Top Subject Matter

Software Engineering/ Coding Quality Assurance - Highlighting React, TypeScript, and C++
Finance & FinTech Evaluation - Experienced in technical analysis, risk data, and market metrics.
E-commerce - Product Categorization & Customer Support

Top Data Types

TextText
VideoVideo
ImageImage

Top Task Types

ClassificationClassification
Bounding BoxBounding Box
Object DetectionObject Detection
Text GenerationText Generation
Question AnsweringQuestion Answering
CuboidCuboid
Text SummarizationText Summarization
TranscriptionTranscription
Evaluation/RatingEvaluation/Rating
Data CollectionData Collection
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

AI trainer and data annotation specialist with experience working on Large language model (LLM) training, prompt evaluation, response ranking, content review, and quality assurance projects. I have contributed to AI development through platforms such as Outlier, DataAnnotation, and Handshake AI, where I assessed model outputs, followed detailed project guidelines, and maintained high accuracy standards. My background in professional writing, research, and data management enables me to analyze information critically, provide high-quality feedback, and support the development of reliable AI systems.

Labeling Experience

AI Data Annotator

TextTextEvaluation/RatingEvaluation/Rating

I evaluated two model responses regarding the given user prompt, selected the better response, and rated both responses on 5 different dimensions: instruction following, harmfulness, helpfulness, factuality, and conciseness and coherence to the prompt.

2025 - Present

AI Trainer

TextTextClassificationClassification

Evaluated and ranked AI-generated responses for accuracy, relevance, reasoning quality, and instruction adherence. Performed prompt assessment, content review, quality assurance, and data annotation tasks to improve large language model performance. Followed detailed project guidelines while maintaining high-quality standards and consistency.

2025 - Present

Education

S

Solent University

PhD, Mechanical Engineering

PhD
2015 - 2019

Work History

I

IBM

Packaging R&D Engineer

Hursley
2022 - Present