For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
N

Ndirangu Joseph

AI Data Annotator / Technical Domain Evaluator (Freelance)

KENYA flag
Nairobi, Kenya
$20.00/hrExpertOtherData Annotation TechHivemind

Key Skills

Software

Other
Data Annotation TechData Annotation Tech
HiveMindHiveMind
MercorMercor
RemotasksRemotasks
TolokaToloka

Top Subject Matter

Ict Domain Expertise
Account Management
General Knowledge

Top Data Types

Computer Code ProgrammingComputer Code Programming
ImageImage
VideoVideo

Top Task Types

Bounding Box
Text Generation
Computer Programming Coding
Object Detection
Data Collection
Evaluation Rating
Prompt Response Writing SFT
RLHF
Text Summarization
Question Answering
Classification
Segmentation
Polygon

Freelancer Overview

AI Data Annotator / Technical Domain Evaluator (Freelance). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, KCA University (2025) and Kenya Certificate of Secondary Education, Kiambu High School (2021). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

ExpertSerbianEnglish

Labeling Experience

AI Data Annotator / Technical Domain Evaluator (Freelance)

OtherText
I evaluated AI-generated responses in technical Q&A and account management scenarios, rating outputs for accuracy, helpfulness, tone, and safety. I crafted natural language prompts to test model reasoning and identified issues such as hallucinated facts and off-topic responses. Quality and rubric compliance were maintained through consistent annotation across multiple projects. • Rated and justified the accuracy and quality of AI answers in ICT domains • Authored prompts to test and surface model weaknesses • Flagged tone, clarity, and factuality issues for model improvement • Delivered written feedback to guide AI system refinement

I evaluated AI-generated responses in technical Q&A and account management scenarios, rating outputs for accuracy, helpfulness, tone, and safety. I crafted natural language prompts to test model reasoning and identified issues such as hallucinated facts and off-topic responses. Quality and rubric compliance were maintained through consistent annotation across multiple projects. • Rated and justified the accuracy and quality of AI answers in ICT domains • Authored prompts to test and surface model weaknesses • Flagged tone, clarity, and factuality issues for model improvement • Delivered written feedback to guide AI system refinement

2024 - Present

Education

K

KCA University

Bachelor of Science, Applied Computing Information Security and Forensics

Bachelor of Science
2021 - 2025
K

Kiambu High School

Kenya Certificate of Secondary Education, General Secondary Education

Kenya Certificate of Secondary Education
2017 - 2021

Work History

T

Tourism Regulatory Authority

ICT Support Intern

Nairobi
2025 - 2025
I

IEBC Kenya

Data Clerk

Nairobi
2022 - 2022