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Adede-Nkosi Essien

Adede-Nkosi Essien

AI Data Expert (Contract) – LILT

KENYA flag
Nairobi, Kenya
$8.00/hrExpertAppenCrowdsourceOpencv AI Kit Oak

Key Skills

Software

AppenAppen
CrowdSourceCrowdSource
OpenCV AI Kit (OAK)OpenCV AI Kit (OAK)
OneFormaOneForma
Micro1
MercorMercor
iMeritiMerit
SuperAnnotateSuperAnnotate

Top Subject Matter

Natural Language Processing AI Models
AI Language Model Training Data
AI Model Evaluation and Analysis

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

Classification
Bounding Box
Polyline
Object Detection
Segmentation
Point Key Point
Text Generation
Text Summarization
Transcription
Prompt Response Writing SFT
Function Calling
Data Collection
Evaluation Rating
Red Teaming
RLHF
Question Answering
Entity Ner Classification
Polygon
Fine Tuning
Computer Programming Coding
Cuboid

Freelancer Overview

AI Data Expert (Contract) – LILT. Brings 3+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, United States International University Africa (2023) and Certificate, Holberton School (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Translation.

ExpertEnglishSwahiliGermanChinese Mandarin

Labeling Experience

AI Data Expert (Contract) – LILT

Text
I evaluated AI model outputs for linguistic accuracy, reasoning quality, and contextual correctness. I produced high-quality annotated datasets used for the training and refinement of large language models. I identified model weaknesses and edge cases to provide structured feedback improving reliability. • Evaluated model-generated text outputs for accuracy and relevancy. • Annotated datasets to facilitate ongoing large language model improvements. • Identified and reported edge cases and failure scenarios. • Collaborated with software engineering teams to iterate model enhancements.

I evaluated AI model outputs for linguistic accuracy, reasoning quality, and contextual correctness. I produced high-quality annotated datasets used for the training and refinement of large language models. I identified model weaknesses and edge cases to provide structured feedback improving reliability. • Evaluated model-generated text outputs for accuracy and relevancy. • Annotated datasets to facilitate ongoing large language model improvements. • Identified and reported edge cases and failure scenarios. • Collaborated with software engineering teams to iterate model enhancements.

2026 - Present

AI Data Specialist – RWS Group

Text
I analyzed datasets and performed multilingual annotation and linguistic validation for AI model training. I supported improvements to machine learning workflows through dataset annotation and data quality assessments. I coordinated with global teams to achieve high standards in AI data pipelines. • Performed linguistic validation for training and evaluation datasets. • Carried out multilingual data annotation for AI model performance. • Utilized Python and Excel for dataset analysis and QA checks. • Ensured annotated data met strict quality and consistency standards.

I analyzed datasets and performed multilingual annotation and linguistic validation for AI model training. I supported improvements to machine learning workflows through dataset annotation and data quality assessments. I coordinated with global teams to achieve high standards in AI data pipelines. • Performed linguistic validation for training and evaluation datasets. • Carried out multilingual data annotation for AI model performance. • Utilized Python and Excel for dataset analysis and QA checks. • Ensured annotated data met strict quality and consistency standards.

2023 - Present

AI Model Evaluation Dashboard (Technical Project)

TextClassification
I built systems for scoring and analyzing language model outputs across accuracy, bias, and quality. I developed dashboards to visualize performance trends and to identify and categorize model failure cases. I contributed labeled data to benchmarking and AI model validation workflows. • Designed evaluation metrics for language model scoring. • Curated examples illustrating bias or performance edge cases. • Categorized model output using custom quality classifications. • Delivered annotated samples for systematic model retraining.

I built systems for scoring and analyzing language model outputs across accuracy, bias, and quality. I developed dashboards to visualize performance trends and to identify and categorize model failure cases. I contributed labeled data to benchmarking and AI model validation workflows. • Designed evaluation metrics for language model scoring. • Curated examples illustrating bias or performance edge cases. • Categorized model output using custom quality classifications. • Delivered annotated samples for systematic model retraining.

2025 - 2026

Multilingual Luo–English NLP Dataset (Technical Project)

Text
I created and structured a Luo–English dataset supporting multilingual machine learning tasks. I implemented preprocessing and quality control pipelines to ensure the dataset was accurate and representative. I trained baseline NLP models using the annotated data. • Collected and annotated Luo–English parallel text data. • Applied preprocessing and normalization to dataset samples. • Evaluated dataset coverage and linguistic diversity. • Supported downstream NLP applications for low-resource languages.

I created and structured a Luo–English dataset supporting multilingual machine learning tasks. I implemented preprocessing and quality control pipelines to ensure the dataset was accurate and representative. I trained baseline NLP models using the annotated data. • Collected and annotated Luo–English parallel text data. • Applied preprocessing and normalization to dataset samples. • Evaluated dataset coverage and linguistic diversity. • Supported downstream NLP applications for low-resource languages.

2025 - 2025

Education

H

Holberton School

Certificate, Data Analytics

Certificate
2025 - 2025
S

Strand Digital Skills Hub

Certificate, SEO Content Writing

Certificate
2024 - 2024

Work History

M

Mama Lucy Kibaki Hospital

Executive Virtual Assistant

Nairobi
2025 - Present
A

AIESEC

Performance Manager

Nairobi
2024 - 2025