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Whilky Ogolla

Whilky Ogolla

Data Analyst & Annotation Specialist

Kenya flagNairobi, Kenya
$15.00/hrExpertCrowdsourceData Annotation TechClickworker

Key Skills

Software

CrowdSourceCrowdSource
Data Annotation TechData Annotation Tech
ClickworkerClickworker

Top Subject Matter

AI Training Data
Data Quality Assurance
Research Analysis

Top Data Types

TextText
DocumentDocument
AudioAudio

Top Task Types

RLHF
Classification
Segmentation

Freelancer Overview

I have hands-on experience in data labeling and AI training data workflows, including work with platforms such as Appen and Google Crowdsource, where I completed tasks involving image annotation, text classification, and data validation. These experiences sharpened my ability to follow detailed annotation guidelines, maintain consistency across large datasets, and deliver high-quality outputs within tight deadlines. My BSc in Computer Science gives me a strong technical foundation that allows me to quickly understand task instructions, apply logical judgment to edge cases, and grasp how labeled data feeds into broader machine learning pipelines. What sets me apart is the combination of academic training and practical field experience. At AMREC, I applied rigorous data evaluation frameworks using tools like ODK, SurveyCTO, and KoboToolbox — skills that transfer directly to structured annotation work. I am proficient in Python, R, and statistical analysis, and I am comfortable working independently in remote, asynchronous environments. My attention to detail, fluency in English, and familiarity with data quality standards make me well-suited to contribute meaningfully to AI training data projects from day one.

ExpertEnglish

Labeling Experience

Data Analyst & Annotation Specialist

TextRLHF
Performed data annotation, labeling, and evaluation tasks on both structured and unstructured text datasets. Applied annotation style guides and quality rubrics to ensure accuracy and consistency in labeled data for AI and machine learning workflows. Reviewed, scored, and ranked AI-generated content to support training data pipelines and model evaluation. • Consistently followed complex annotation and instruction guidelines • Validated data collected using digital survey platforms • Mentored junior staff on annotation standards and documentation • Collaborated with remote teams to meet project deadlines

Performed data annotation, labeling, and evaluation tasks on both structured and unstructured text datasets. Applied annotation style guides and quality rubrics to ensure accuracy and consistency in labeled data for AI and machine learning workflows. Reviewed, scored, and ranked AI-generated content to support training data pipelines and model evaluation. • Consistently followed complex annotation and instruction guidelines • Validated data collected using digital survey platforms • Mentored junior staff on annotation standards and documentation • Collaborated with remote teams to meet project deadlines

2022 - Present

Education

L

Laikipia University

Bachelor of Science, Computer Science

Bachelor of Science
2017 - 2021

Work History

K

Kenya Medical Research Institute

ICT & Data Support Attaché

Nairobi
2021 - 2021
I

Independent Electoral and Boundaries Commission

Data Entry & Verification Clerk

Nairobi
2017 - 2017