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Milton Odhiambo

Milton Odhiambo

Freelance AI Data Annotator & AI Trainer

Kenya flagNairobi, Kenya
$30.00/hrIntermediateImeritOther

Key Skills

Software

iMeritiMerit
Other

Top Subject Matter

AI Training Data
Fintech Transactions
LLM Output Evaluation

Top Data Types

TextText
AudioAudio
VideoVideo

Top Task Types

RLHFRLHF
Computer Programming/CodingComputer Programming/Coding
Fine-tuningFine-tuning
TranscriptionTranscription

Freelancer Overview

I have hands-on experience supporting machine learning pipelines through data annotation, transcript validation, and AI output evaluation. My work has included reviewing and correcting AI-generated transcripts, validating speaker tagging and diarization labels, removing hallucinated content from model outputs, and verifying named entities and financial data against strict annotation guidelines. I have contributed to human-in-the-loop (HITL) evaluation workflows and RLHF preference data pipelines evaluating LLM prompt-response pairs for accuracy, coherence, helpfulness, and safety. What sets me apart is the combination of practical annotation experience with a strong technical foundation in software development and data systems. My background in backend engineering, database schema design, and API validation means I understand data structure and consistency at a deeper level than most annotators allowing me to catch structural errors, flag edge cases, and maintain high precision across complex datasets. I also bring experience with Python-based data processing (Pandas, NumPy, Scikit-learn) and have built a working ML recommendation system, giving me genuine familiarity with how clean, well-labeled training data directly impacts model performance.

IntermediateEnglishSwahili

Labeling Experience

Freelance AI Data Annotator & AI Trainer

TextRLHF
As a Freelance AI Data Annotator & AI Trainer, I performed RLHF data preparation, text annotation, and transcript validation for multiple ML pipelines. My responsibilities included reviewing AI-generated transcripts, validating speaker diarization labels, and verifying named entities in structured datasets. This work supported preference ranking, LLM evaluation, and human-in-the-loop AI evaluation workflows. • Conducted RLHF prompt-response evaluation, scoring for helpfulness, accuracy, coherence, and safety • Corrected hallucination and maintained quality in model-generated outputs • Labeled and validated financial data for fintech ML pipeline training • Used spreadsheets and internal tools for structured audio and text annotation

As a Freelance AI Data Annotator & AI Trainer, I performed RLHF data preparation, text annotation, and transcript validation for multiple ML pipelines. My responsibilities included reviewing AI-generated transcripts, validating speaker diarization labels, and verifying named entities in structured datasets. This work supported preference ranking, LLM evaluation, and human-in-the-loop AI evaluation workflows. • Conducted RLHF prompt-response evaluation, scoring for helpfulness, accuracy, coherence, and safety • Corrected hallucination and maintained quality in model-generated outputs • Labeled and validated financial data for fintech ML pipeline training • Used spreadsheets and internal tools for structured audio and text annotation

2022 - Present

Education

M

Murang'a University of Technology

Computer Science, Computer Science

Computer Science
2022 - 2026
O

Otterman

Ethics in Artificial Intelligence, Artificial Intelligence

Ethics in Artificial Intelligence
2025 - 2025

Work History

F

Freelance

Full-Stack Developer

Nairobi
2021 - Present
S

Software Development Environment

Junior Software Developer

Nairobi
2019 - 2020