Eric Mutinda

Key Skills

Software

Labelbox

Top Subject Matter

Large Language Model Optimization

Machine Learning Research

Top Data Types

Text

Image

Top Task Types

RLHF

Classification

Segmentation

Text Generation

Transcription

Data Collection

Freelancer Overview

AI Training Specialist / Data Annotator. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, Internal, and Proprietary Tooling. Education includes Master of Science, Mount Kenya University (2023) and Bachelor of Science, Mount Kenya University. AI-training focus includes data types such as Text and labeling workflows including RLHF and Classification.

Labeling Experience

AI Training Specialist / Data Annotator

LabelboxTextRLHF

As an AI Training Specialist and Data Annotator at OpenTrain AI, I performed RLHF optimization to evaluate and rank AI-generated text responses. I conducted mathematical and logical verification on AI outputs to ensure accuracy and adherence to computational logic. I also developed challenging prompts to augment LLM instruction-following capabilities. • Conducted quality assurance on AI-generated mathematical and coding responses • Elevated dataset reliability by identifying and flagging subtle errors • Crafted prompts to rigorously test LLM performance • Improved dataset quality, helping reduce model hallucinations

As an AI Training Specialist and Data Annotator at OpenTrain AI, I performed RLHF optimization to evaluate and rank AI-generated text responses. I conducted mathematical and logical verification on AI outputs to ensure accuracy and adherence to computational logic. I also developed challenging prompts to augment LLM instruction-following capabilities. • Conducted quality assurance on AI-generated mathematical and coding responses • Elevated dataset reliability by identifying and flagging subtle errors • Crafted prompts to rigorously test LLM performance • Improved dataset quality, helping reduce model hallucinations

2023 - Present

Graduate Researcher (Mathematics & Informatics)

TextClassification

As a Graduate Researcher at Mount Kenya University, I prepared large-scale datasets for predictive modeling and research projects. I created and maintained detailed annotation guidelines for consistency among team members. I assisted with algorithm testing and labeled outcomes for experimental machine learning models. • Cleaned and structured textual datasets for research use • Developed annotation protocols to standardize team output • Labeled experimental results for machine learning evaluation • Supported predictive modeling through high-quality data annotation

As a Graduate Researcher at Mount Kenya University, I prepared large-scale datasets for predictive modeling and research projects. I created and maintained detailed annotation guidelines for consistency among team members. I assisted with algorithm testing and labeled outcomes for experimental machine learning models. • Cleaned and structured textual datasets for research use • Developed annotation protocols to standardize team output • Labeled experimental results for machine learning evaluation • Supported predictive modeling through high-quality data annotation

2021 - 2023

Education

Work History