Wakako Kitahara

Key Skills

Software

Scale AI

Other

Top Subject Matter

Japanese Language

AI Language Models

Japanese & Multilingual Language Data

Top Data Types

Audio

Text

Top Task Types

Evaluation/Rating

Audio Recording

Data Collection

Freelancer Overview

LLM Evaluation & AI Training Specialist (Freelance, Outlier). Core strengths include Other. Education includes Bachelor of Technology, West Japan Academy. AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

Voice recording and evaluation, transcription

Scale AIAudioTranslation LocalizationEvaluation Rating

Recorded and evaluated multi-speaker Japanese conversations, including my own. Conducted voice recordings across multiple categories and emotional tones, and performed labeling and quality assessment of other participants’ audio data.

Recorded and evaluated multi-speaker Japanese conversations, including my own. Conducted voice recordings across multiple categories and emotional tones, and performed labeling and quality assessment of other participants’ audio data.

2025 - 2025

Freelance Linguistic & AI Evaluator (RWS)

OtherText

As a freelancer with RWS, I worked on linguistic and AI-related projects for Japanese LLMs. My tasks centered on evaluating AI-generated text for fluency, accuracy, and naturalness. The goal was to improve the cultural and contextual appropriateness of model outputs. • Rated and reviewed model-generated content • Checked for linguistic and contextual quality • Provided evaluative feedback for improvements • Supported Japanese linguistic AI training

As a freelancer with RWS, I worked on linguistic and AI-related projects for Japanese LLMs. My tasks centered on evaluating AI-generated text for fluency, accuracy, and naturalness. The goal was to improve the cultural and contextual appropriateness of model outputs. • Rated and reviewed model-generated content • Checked for linguistic and contextual quality • Provided evaluative feedback for improvements • Supported Japanese linguistic AI training

2025 - Present

AI Data Annotation Contractor (Freelance, Invisible)

OtherTextData Collection

I participated in annotation projects to generate and label data sets for Japanese AI language development with Invisible. Tasks included text data labeling and quality assurance for multilingual models. My role supported language evaluation and enhancement efforts. • Annotated and collected text data for AI training • Conducted linguistic quality checks • Worked on multilingual and Japanese-specific datasets • Utilized internal annotation and QA workflows

I participated in annotation projects to generate and label data sets for Japanese AI language development with Invisible. Tasks included text data labeling and quality assurance for multilingual models. My role supported language evaluation and enhancement efforts. • Annotated and collected text data for AI training • Conducted linguistic quality checks • Worked on multilingual and Japanese-specific datasets • Utilized internal annotation and QA workflows

2024 - Present

LLM Evaluation & AI Training Specialist (Freelance, Outlier)

OtherText

I evaluated large language model (LLM) outputs to improve Japanese AI systems for Outlier. My work focused on assessing accuracy, expression, and cultural nuance in model-generated responses. I contributed feedback to enhance model performance in realistic contexts. • Evaluated LLM responses using defined rubrics • Provided language and cultural feedback • Ensured linguistic accuracy in outputs • Collaborated remotely on deadline-driven projects

I evaluated large language model (LLM) outputs to improve Japanese AI systems for Outlier. My work focused on assessing accuracy, expression, and cultural nuance in model-generated responses. I contributed feedback to enhance model performance in realistic contexts. • Evaluated LLM responses using defined rubrics • Provided language and cultural feedback • Ensured linguistic accuracy in outputs • Collaborated remotely on deadline-driven projects

2024 - Present

Voice & Speech Data Contributor (Freelance)

OtherAudioData Collection

I participated in projects involving the collection of voice and speech data, including text-to-speech (TTS) training and script reading. My contributions aimed to improve AI-driven speech recognition and generation systems. Tasks included recording audio samples and collecting structured voice datasets. • Contributed to TTS and speech data initiatives • Performed script reading for data generation • Assisted with voice data collection protocols • Supported Japanese-language speech AI projects

I participated in projects involving the collection of voice and speech data, including text-to-speech (TTS) training and script reading. My contributions aimed to improve AI-driven speech recognition and generation systems. Tasks included recording audio samples and collecting structured voice datasets. • Contributed to TTS and speech data initiatives • Performed script reading for data generation • Assisted with voice data collection protocols • Supported Japanese-language speech AI projects

Present

Education

Work History