Rodger Mwangeka

Key Skills

Software

Data Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

Text

Top Label Types

Text Generation

RLHF

Evaluation Rating

Freelancer Overview

I am an experienced AI Trainer and Data Annotation Specialist with a strong background in human-in-the-loop model training, evaluation, and alignment. My work on platforms such as Outlier and Alignerr has given me hands-on expertise in evaluating large language model outputs, annotating and validating NLP datasets, and applying detailed rubrics to ensure model safety, accuracy, and compliance. I excel at identifying hallucinations, edge cases, and inconsistencies, and I consistently deliver high-quality feedback to drive model improvement. With a foundation in computer science and skills in Python, dataset quality control, and annotation platforms, I am dedicated to supporting the development of reliable and robust AI systems.

Labeling Experience

Advanced Ai Model evaluation & RLHF Data annotation

Data Annotation TechTextText GenerationRLHF

worked on Ai training projects that focused on improving large language model performance through structured evaluation ranking and annotation workflows. Performed comparative response ranking , identified hallucinations and edge cases and provided structured feedback to support reinforcement learning from human feedback (RLHF) process

worked on Ai training projects that focused on improving large language model performance through structured evaluation ranking and annotation workflows. Performed comparative response ranking , identified hallucinations and edge cases and provided structured feedback to support reinforcement learning from human feedback (RLHF) process

2025

Education

Work History