Okwori E.

Key Skills

Software

Other

Appen

Clickworker

Data Annotation Tech

iMerit

LabelImg

Mercor

Micro1

OneForma

Remotasks

Sama

SuperAnnotate

Telus

Toloka

Top Subject Matter

AI model training data (search and structured dataset quality)

Search engine evaluation and relevance scoring

Multi-modal dataset annotation for AI training

Top Data Types

Text

Audio

Document

Image

Video

Top Task Types

Classification

Data Collection

Evaluation/Rating

Transcription

RLHF

Text Summarization

Question Answering

Text Generation

Object Detection

Polyline

Bounding Box

Polygon

Segmentation

Entity (NER) Classification

Point/Key Point

Cuboid

Prompt + Response Writing (SFT)

Freelancer Overview

I am a detail-oriented AI Data Annotation and Search Evaluation professional with hands-on experience in data labeling, annotation, and quality assurance for machine learning systems. I have worked remotely with organizations such as DataLen Africa and RWS Group, where I evaluated search engine results, annotated text, audio, image, and video datasets, and performed quality reviews to improve AI model accuracy and performance. My experience includes relevance assessment, sentiment analysis, data segmentation, NLP-related tasks, multimedia content review, and ensuring alignment between prompts and structured datasets while following strict annotation guidelines. What sets me apart is my strong analytical thinking, attention to detail, and ability to work independently in remote AI training environments. I am skilled in data processing, data interpretation, image and video annotation, audio transcription, and structured documentation. With a B.Sc. (Hons) in Microbiology and additional certification in Data Labelling & Annotation for AI Development from CipherSense – DataLens AI, I combine technical precision with strong research and problem-solving abilities. I am fluent in English and Hausa, enabling me to contribute effectively to multilingual and linguistically sensitive AI projects.

Labeling Experience

Data Annotator (Freelance/Remote) — RWS Group (2025–2026)

OtherText

Annotated text, audio, and structured datasets to support AI model performance under detailed project guidelines. Performed quality checks to ensure consistency and correctness of labeled outputs. Ensured alignment between prompts, responses, and structured datasets while meeting productivity and quality targets. • Followed strict annotation and labeling guidelines • Conducted review/quality assurance for labeled data • Verified prompt-response-structure alignment • Maintained throughput while adhering to quality standards

2025 - 2026

Search Engine Evaluator (Remote) — DataLen Africa (2022–2023)

OtherDocument

Evaluated search results for relevance, accuracy, and usefulness using strict guidelines. Reviewed web pages, videos, and other multimedia content to assess user intent fit. Identified inconsistencies and provided feedback to improve system outputs. • Rated relevance and usefulness of search results • Assessed accuracy and contextual alignment of content • Reviewed multimedia pages/videos per rubric • Reported issues and improvement feedback

2022 - 2023

AI Data Annotation Specialist (Freelance) (2020–2022)

OtherTextClassification

Labeled and annotated large multi-modal datasets (text, images, audio, and video) to support machine learning and AI development. Performed data classification, segmentation, and tagging according to client project guidelines and quality standards. Reviewed and validated annotated data to ensure consistency, accuracy, and compliance. • Applied classification/segmentation/tagging rules • Annotated multi-modal content for ML readiness • Validated outputs for consistency and accuracy • Ensured compliance with client requirements

2020 - 2022

Education

Work History