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J
J W.

J W.

Senior Data Analyst | AI Training and Model Validation

United Kingdom flagPeterborough, United Kingdom

Key Skills

Software

No software listed

Top Subject Matter

Biostatistics
Statistical Analysis
Clinical Research
Clinical Trials
In Vitro Diagnostics (IVD)

Top Data Types

ImageImage
VideoVideo
TextText

Top Task Types

Data CollectionData Collection
Computer Programming/CodingComputer Programming/Coding
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Audio RecordingAudio Recording
Object DetectionObject Detection
Action RecognitionAction Recognition

Freelancer Overview

I have experience working with large, complex healthcare and clinical datasets, where I have been responsible for data review, quality control, validation, coding verification, and ensuring data integrity for regulatory and research purposes. As a biostatistician, I routinely develop data management and analysis workflows, review data against predefined specifications, identify discrepancies, and apply standardized classification frameworks. These activities require a high level of accuracy, attention to detail, consistency, and adherence to established guidelines—skills that are directly transferable to AI training and data annotation projects. In addition, I have experience interpreting medical, scientific, and real-world evidence data, creating structured datasets, and ensuring that information is accurately categorized and documented for analysis and reporting. My background in clinical research, diagnostics, and statistical programming has strengthened my ability to follow complex instructions, maintain data quality standards, and contribute to the development of reliable datasets that support machine learning and artificial intelligence applications.

Labeling Experience

I have experience supporting Large Language Model (LLM) development through prompt-response assessment, preference ranki

I have experience supporting Large Language Model (LLM) development through prompt-response assessment, preference ranking, reinforcement learning from human feedback (RLHF), and safety evaluation tasks. This work required strong analytical skills, attention to detail, and the ability to apply complex guidelines consistently while maintaining high quality standards. My background in biostatistics and data analysis further strengthens my ability to interpret nuanced information, identify patterns, and contribute to the development of reliable, high-performing AI systems.

Not specified

Education

P

PhD: Medical Statistics and Primary Care Sciences MSc.: Public Health Research PGD.: Medical Statistics

Degree not specified

Not specified
Not specified

Work History

A

accuracy

Performed annotation, validation, and quality assurance of text, image, and audio datasets to support the training and o

Location not specified
Not specified