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T
Tochukwu Uba

Tochukwu Uba

Business/Operations Analyst

United Kingdom flagKent, United Kingdom
$50.00/hrExpertDeep SystemsData Annotation TechOneforma

Key Skills

Software

Deep SystemsDeep Systems
Data Annotation TechData Annotation Tech
OneFormaOneForma
RemotasksRemotasks
TelusTelus
CrowdSourceCrowdSource
AppenAppen

Top Subject Matter

Retail
Logistics
Business Analysis

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

Evaluation/RatingEvaluation/Rating
Question AnsweringQuestion Answering
Data CollectionData Collection

Freelancer Overview

I am an experienced data labeling and AI training specialist with a strong background in producing high-quality annotated datasets that support both development and evaluation of machine learning models. I have worked across a variety of task types, including text classification, data validation, content evaluation, and prompt-response assessment, consistently applying detailed guidelines to ensure accuracy, consistency, and alignment with model objectives. My approach combines analytical thinking with strong attention to detail, enabling me to identify edge cases, maintain data integrity, and deliver outputs that meet strict quality benchmarks. What sets me apart is my ability to go beyond basic labeling by critically evaluating data quality, improving annotation guidelines, and providing clear, structured reasoning for decisions. I bring strong communication skills, enabling me to document findings, justify classifications, and collaborate effectively with cross-functional teams. With a solid foundation in data analysis, technical tools (including Excel and structured datasets), and a continuous learning mindset, I am well-positioned to contribute to the development of reliable, high-performing AI systems.

ExpertEnglish

Labeling Experience

Prompt Evaluator / AI Response Reviewer

VideoEvaluation Rating
Worked as an AI Response Evaluator, assessing and improving the quality of large language model (LLM) outputs across a wide range of domains including technical, analytical, and general knowledge tasks. Responsible for reviewing AI-generated responses against detailed evaluation guidelines, focusing on accuracy, relevance, completeness, safety, and clarity. Applied structured reasoning to rate responses, identify factual errors, logical inconsistencies, and gaps in explanation, and provide clear, evidence-based justifications for each evaluation. Contributed to improving model performance by analysing prompt-response interactions and suggesting refinements to prompts to elicit higher-quality outputs. This included identifying ambiguous or poorly structured prompts, testing alternative phrasings, and evaluating the impact on response quality. Maintained high annotation accuracy and consistency across large volumes of tasks, demonstrating strong attention to detail and adherence to strict quality standards. Additionally, handled edge cases such as biased, unsafe, or misleading outputs by applying policy guidelines to ensure responsible AI behaviour. Collaborated within a distributed workflow, meeting tight deadlines while maintaining quality benchmarks. Leveraged analytical skills and experience with structured data to track patterns in model performance and contribute to continuous improvement of evaluation frameworks.

Worked as an AI Response Evaluator, assessing and improving the quality of large language model (LLM) outputs across a wide range of domains including technical, analytical, and general knowledge tasks. Responsible for reviewing AI-generated responses against detailed evaluation guidelines, focusing on accuracy, relevance, completeness, safety, and clarity. Applied structured reasoning to rate responses, identify factual errors, logical inconsistencies, and gaps in explanation, and provide clear, evidence-based justifications for each evaluation. Contributed to improving model performance by analysing prompt-response interactions and suggesting refinements to prompts to elicit higher-quality outputs. This included identifying ambiguous or poorly structured prompts, testing alternative phrasings, and evaluating the impact on response quality. Maintained high annotation accuracy and consistency across large volumes of tasks, demonstrating strong attention to detail and adherence to strict quality standards. Additionally, handled edge cases such as biased, unsafe, or misleading outputs by applying policy guidelines to ensure responsible AI behaviour. Collaborated within a distributed workflow, meeting tight deadlines while maintaining quality benchmarks. Leveraged analytical skills and experience with structured data to track patterns in model performance and contribute to continuous improvement of evaluation frameworks.

2025 - 2026

Education

N

Nnamdi Azikiwe University

Bachelor of Economics, Economics

Bachelor of Economics
2010 - 2014

Work History

T

Tesco

Operations Analyst

Kent
2023 - Present
C

Caldwell Foster Advisory

Business Analyst

Kent
2025 - 2025