Antony Njenga

Key Skills

Software

Appen

Clickworker

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Computer Code Programming

Image

Text

Top Label Types

Audio Recording

Bounding Box

Classification

Computer Programming Coding

Prompt Response Writing SFT

RLHF

Transcription

Freelancer Overview

I am a software engineer with hands-on experience in AI training data workflows, including data annotation, RLHF, prompt engineering, and rigorous factuality checking for Large Language Models. My technical background spans Python, SQL, and data management, allowing me to build structured data systems and automate validation processes to ensure high data quality. I have supported data categorization projects, adhered to strict annotation guidelines, and developed backend systems for entity extraction and anomaly detection—skills essential for training and evaluating AI models. My work combines a strong focus on logic verification, code review, and quality assurance, making me adept at identifying inconsistencies and improving dataset reliability for AI applications.

Labeling Experience

AI Trainer & Technical Consultant

AppenTextClassification

As an AI Trainer & Technical Consultant, I executed various data annotation and labeling projects for diverse clients. My responsibilities included applying complex style guides, performing entity extraction, and crafting high-quality Chain-of-Thought (CoT) reasoning for Large Language Models. I also delivered comprehensive prompt engineering and RLHF (Reinforcement Learning from Human Feedback) evaluations. • Labeled and categorized textual data with strict adherence to RLHF and client-specific guidelines. • Performed entity extraction and data structuring for AI model enhancement. • Developed and documented Chain-of-Thought reasoning to improve LLM outputs. • Supported quality assurance by validating labeled datasets and ensuring accuracy.

As an AI Trainer & Technical Consultant, I executed various data annotation and labeling projects for diverse clients. My responsibilities included applying complex style guides, performing entity extraction, and crafting high-quality Chain-of-Thought (CoT) reasoning for Large Language Models. I also delivered comprehensive prompt engineering and RLHF (Reinforcement Learning from Human Feedback) evaluations. • Labeled and categorized textual data with strict adherence to RLHF and client-specific guidelines. • Performed entity extraction and data structuring for AI model enhancement. • Developed and documented Chain-of-Thought reasoning to improve LLM outputs. • Supported quality assurance by validating labeled datasets and ensuring accuracy.

2022

Education

Work History