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Stephen Adjei

Stephen Adjei

Data Annotator

United Kingdom flagRichmond Upon Thames, United Kingdom
$15.00/hrEntry LevelOther

Key Skills

Software

Other

Top Subject Matter

General AI/Data Labeling

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

Bounding BoxBounding Box
Text GenerationText Generation
Text SummarizationText Summarization
Question AnsweringQuestion Answering
Object DetectionObject Detection
Fine-tuningFine-tuning
TranscriptionTranscription
Function CallingFunction Calling

Freelancer Overview

Data Annotator - Outlier AI. Brings 12+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Mphil Biology, Bachelor of Education, University of Education, Winneba and West African Senior School Certificate Examination, Simms Senior High School (2013). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Entry LevelEnglish

Labeling Experience

Data Annotator - Outlier AI

OtherText
In this position, I annotated and labeled large datasets including text, image, and audio to support machine learning model training. I applied detailed project guidelines to ensure consistent and high-quality data outputs, evaluating and ranking AI-generated responses for accuracy, relevance, and safety. I also edited and rewrote model outputs to improve clarity and correctness, and conducted quality assurance checks to maintain high accuracy rates. • Managed ambiguous or complex data cases using critical thinking and decision-making • Met productivity targets while adhering to strict quality benchmarks • Utilized annotation platforms and tools to efficiently complete and track tasks • Provided feedback on guidelines and flagged inconsistencies to improve overall data quality.

In this position, I annotated and labeled large datasets including text, image, and audio to support machine learning model training. I applied detailed project guidelines to ensure consistent and high-quality data outputs, evaluating and ranking AI-generated responses for accuracy, relevance, and safety. I also edited and rewrote model outputs to improve clarity and correctness, and conducted quality assurance checks to maintain high accuracy rates. • Managed ambiguous or complex data cases using critical thinking and decision-making • Met productivity targets while adhering to strict quality benchmarks • Utilized annotation platforms and tools to efficiently complete and track tasks • Provided feedback on guidelines and flagged inconsistencies to improve overall data quality.

2025 - 2026

Education

A

AAMUSTED

MASTER OF PHILOSOPHY , BIOLOGY

MASTER OF PHILOSOPHY
2023 - 2026
S

Simms Senior High School

West African Senior School Certificate Examination, Agricultural Science

West African Senior School Certificate Examination
2010 - 2013

Work History

G

Grey Court School

Physics Teacher

Richmond Upon Thames
2024 - 2024
B

Banka Community Senior High School

Science Teacher

Banka
2020 - 2024