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Timothy Karanja

Timothy Karanja

AI Trainer & Freelance Web Designer

KENYA flag
Nairobi, Kenya
$10.00/hrExpertAppenClickworkerData Annotation Tech

Key Skills

Software

AppenAppen
ClickworkerClickworker
Data Annotation TechData Annotation Tech

Top Subject Matter

Conversational AI
Natural Language Processing

Top Data Types

AudioAudio
TextText
VideoVideo

Top Label Types

Relationship
Emotion Recognition
Action Recognition
Prompt Response Writing SFT

Freelancer Overview

AI Trainer & Freelance Web Designer. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. AI-training focus includes data types such as Text and labeling workflows including Prompt + Response Writing (SFT).

ExpertEnglishSwahili

Labeling Experience

AI Trainer & Freelance Web Designer

TextPrompt Response Writing SFT
As an AI Trainer and Freelance Web Designer, I managed AI training tasks such as prompt engineering and providing feedback on AI-generated outputs. My work included constructing and refining prompts to instruct conversational AI models and assessing responses to ensure quality and relevance. These tasks contributed to the continuous fine-tuning and practical testing of AI systems for natural language capabilities. • Developed, reviewed, and improved natural language prompts for conversational agents • Provided qualitative feedback and evaluations of AI-generated outputs • Assisted in training cycles by adjusting prompts and contexts for better AI performance • Used Python-based tools and APIs for prompt testing and dataset collection

As an AI Trainer and Freelance Web Designer, I managed AI training tasks such as prompt engineering and providing feedback on AI-generated outputs. My work included constructing and refining prompts to instruct conversational AI models and assessing responses to ensure quality and relevance. These tasks contributed to the continuous fine-tuning and practical testing of AI systems for natural language capabilities. • Developed, reviewed, and improved natural language prompts for conversational agents • Provided qualitative feedback and evaluations of AI-generated outputs • Assisted in training cycles by adjusting prompts and contexts for better AI performance • Used Python-based tools and APIs for prompt testing and dataset collection

2021 - Present
Clickworker

AI Output Evaluation & Prompt Review

ClickworkerAudioRelationshipEmotion Recognition
Reviewed and evaluated AI-generated text responses for accuracy, relevance, clarity, and instruction adherence. Performed prompt review and response rating tasks following detailed guidelines, flagged errors and edge cases, and ensured consistency and high data quality across multiple tasks.

Reviewed and evaluated AI-generated text responses for accuracy, relevance, clarity, and instruction adherence. Performed prompt review and response rating tasks following detailed guidelines, flagged errors and edge cases, and ensured consistency and high data quality across multiple tasks.

2023 - 2025

Education

K

Karatina University

Bachelor of Science, Information Technology

Bachelor of Science
2021 - 2025
N

Njoro Day Secondary School

Kenya Certificate of Secondary Education, General Secondary Education

Kenya Certificate of Secondary Education
2017 - 2021

Work History

F

Freelance

Freelance Web Designer

Nairobi
2022 - Present
R

RoyalHope Home Based Care

Web Developer & Systems Designer

Nairobi
2025 - 2026