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Jeremy Gachoka

Jeremy Gachoka

Data Annotation Specialist

Kenya flagNairobi, Kenya
$3.00/hrExpertOtherClickworkerAppen

Key Skills

Software

Other
ClickworkerClickworker
AppenAppen

Top Subject Matter

E-commerce Product Data & Taxonomy
AI Training & Quality Evaluation
Machine Learning

Top Data Types

TextText
DocumentDocument
ImageImage

Top Task Types

ClassificationClassification
Bounding BoxBounding Box
Question AnsweringQuestion Answering
Text GenerationText Generation
SegmentationSegmentation

Freelancer Overview

Data Annotation Specialist. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Internal, and Proprietary Tooling. Education includes Bachelor of Science, University of Nairobi (2019). AI-training focus includes data types such as Text and labeling workflows including Classification, Evaluation, and Rating.

ExpertEnglish

Labeling Experience

QA Engineer (LLM Evaluation/Adversarial Prompting)

Text
I utilized adversarial prompting techniques in freelance QA roles to evaluate LLM (Large Language Models) on bias, safety, and robustness. These activities focused on large-scale analysis of LLM outputs for global AI-driven projects. My tasks contributed critical feedback to improve AI language model performance and alignment. • Designed adversarial prompts for AI model assessment • Systematically rated LLM responses for compliance and fairness • Reported on bias and edge case handling to stakeholders • Collaborated closely with international AI development teams

I utilized adversarial prompting techniques in freelance QA roles to evaluate LLM (Large Language Models) on bias, safety, and robustness. These activities focused on large-scale analysis of LLM outputs for global AI-driven projects. My tasks contributed critical feedback to improve AI language model performance and alignment. • Designed adversarial prompts for AI model assessment • Systematically rated LLM responses for compliance and fairness • Reported on bias and edge case handling to stakeholders • Collaborated closely with international AI development teams

2021 - Present

Data Annotation Specialist

OtherTextClassification
I labeled and tested textual datasets as a Data Annotation Specialist for machine learning projects. My work ensured the preparation of clean and accurate training data to support AI model development. I focused on supervised learning to enhance predictive reliability for e-commerce applications. • Labeled diverse text data for classification tasks • Supported development teams with high-quality annotations • Verified dataset integrity prior to model deployment • Enhanced training data consistency for retail-focused AI models

I labeled and tested textual datasets as a Data Annotation Specialist for machine learning projects. My work ensured the preparation of clean and accurate training data to support AI model development. I focused on supervised learning to enhance predictive reliability for e-commerce applications. • Labeled diverse text data for classification tasks • Supported development teams with high-quality annotations • Verified dataset integrity prior to model deployment • Enhanced training data consistency for retail-focused AI models

2016 - 2018

Education

U

University of Nairobi

Bachelor of Science, Information Technology

Bachelor of Science
2015 - 2019

Work History

T

Twitter

Community Manager

Nairobi
2021 - Present
F

Freelance Projects

QA Engineer

Nairobi
2021 - Present