Rane Muithya

Key Skills

Software

Scale AI

Data Annotation Tech

Appen

Top Subject Matter

LLM Evaluation and RLHF

Multimodal Annotation (Image, Text, Audio, Document)

NLP and Search Relevance Annotation

Top Data Types

Text

Image

Document

Top Task Types

RLHF

Bounding Box

Classification

Freelancer Overview

Senior AI Trainer & LLM Evaluator (Freelance). Brings 2+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Scale AI, Data Annotation Tech, and Appen. Education includes Bachelor of Science, University of the People (2020). AI-training focus includes data types such as Text and Image and labeling workflows including RLHF, Bounding Box, and Classification.

Labeling Experience

Senior AI Trainer & LLM Evaluator (Freelance)

Scale AITextRLHF

As a Senior AI Trainer & LLM Evaluator (Freelance), I contributed to RLHF preference comparison tasks and reward model training. I evaluated long-form LLM responses for helpfulness, correctness, safety, and hallucinations. I conducted red-team and safety annotation while maintaining high inter-annotator agreement. • Completed 1,000+ RLHF preference comparisons for reward model tuning • Evaluated and scored LLM outputs for quality and policy adherence • Identified jailbreaks and policy violations in safety annotation projects • Reviewed AI-generated code and reasoning for logical consistency

As a Senior AI Trainer & LLM Evaluator (Freelance), I contributed to RLHF preference comparison tasks and reward model training. I evaluated long-form LLM responses for helpfulness, correctness, safety, and hallucinations. I conducted red-team and safety annotation while maintaining high inter-annotator agreement. • Completed 1,000+ RLHF preference comparisons for reward model tuning • Evaluated and scored LLM outputs for quality and policy adherence • Identified jailbreaks and policy violations in safety annotation projects • Reviewed AI-generated code and reasoning for logical consistency

2023 - Present

Data Annotation Specialist (Contract)

Data Annotation TechImageBounding Box

As a Data Annotation Specialist, I annotated images with bounding boxes, segmentation masks, and keypoints. I performed classification and entity recognition on multilingual datasets, and transcribed hours of audio for speech recognition. I also worked on document annotation for OCR and structured forms. • Labeled 10,000+ images using advanced annotation techniques • Performed NER, sentiment, and intent labeling on multilingual text • Transcribed and labeled over 200 hours of audio for speech pipelines • Annotated documents for layout, tables, and form extraction

As a Data Annotation Specialist, I annotated images with bounding boxes, segmentation masks, and keypoints. I performed classification and entity recognition on multilingual datasets, and transcribed hours of audio for speech recognition. I also worked on document annotation for OCR and structured forms. • Labeled 10,000+ images using advanced annotation techniques • Performed NER, sentiment, and intent labeling on multilingual text • Transcribed and labeled over 200 hours of audio for speech pipelines • Annotated documents for layout, tables, and form extraction

2021 - 2022

Multilingual AI Annotator (Project-Based)

AppenTextClassification

As a Multilingual AI Annotator, I labeled NLP and search relevance datasets in English and Swahili. I supported content moderation and performed linguistic quality evaluations with high accuracy and throughput. I followed strict annotation guidelines throughout all projects. • Labeled text and search data for English and Swahili AI applications • Assessed and moderated content for relevance and safety • Evaluated linguistic quality following project standards • Maintained high annotation accuracy and speed

As a Multilingual AI Annotator, I labeled NLP and search relevance datasets in English and Swahili. I supported content moderation and performed linguistic quality evaluations with high accuracy and throughput. I followed strict annotation guidelines throughout all projects. • Labeled text and search data for English and Swahili AI applications • Assessed and moderated content for relevance and safety • Evaluated linguistic quality following project standards • Maintained high annotation accuracy and speed

2020 - 2021

Education

Work History