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Atsuko Nagai

Atsuko Nagai

Japanese Language AI Trainer / Expert Contractor (Invisible Technologies)

Japan flagAichi, Japan
$25.00/hrIntermediateLabelboxLabel StudioOther

Key Skills

Software

LabelboxLabelbox
Label StudioLabel Studio
Other
Micro1
MercorMercor
SuperAnnotateSuperAnnotate

Top Subject Matter

LLM Voice/Audio Assessment
Japanese Text Generation
Japanese Transcription

Top Data Types

ImageImage
TextText
VideoVideo
AudioAudio
DocumentDocument

Top Task Types

Evaluation Rating
Prompt Response Writing SFT
RLHF
Translation Localization
Transcription
Data Collection
Red Teaming
Question Answering
Classification
Text Generation
Text Summarization

Freelancer Overview

Japanese Language AI Trainer / Expert Contractor (Invisible Technologies). Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. AI-training focus includes data types such as Audio and labeling workflows including Evaluation, Rating, and Transcription.

IntermediateEnglishJapanese

Labeling Experience

Japanese Language AI Trainer / AI Trainer Lead

OtherAudioTranscription
As Japanese Language AI Trainer Lead at Turing AI, I contributed to Japanese transcription projects for Amazon and led a multilingual LLM improvement SFT project for NVIDIA. I managed review standard development and quality assurance specifically for audio transcription and SFT tasks. I ensured consistency, quality, and effective processes for AI training on transcription and multilingual language models. • Managed Japanese transcription tasks for AI data curation. • Led standard development for SFT and audio quality. • Directed review and assurance for LLM tuning projects. • Oversaw multilingual evaluation to enhance model performance.

As Japanese Language AI Trainer Lead at Turing AI, I contributed to Japanese transcription projects for Amazon and led a multilingual LLM improvement SFT project for NVIDIA. I managed review standard development and quality assurance specifically for audio transcription and SFT tasks. I ensured consistency, quality, and effective processes for AI training on transcription and multilingual language models. • Managed Japanese transcription tasks for AI data curation. • Led standard development for SFT and audio quality. • Directed review and assurance for LLM tuning projects. • Oversaw multilingual evaluation to enhance model performance.

2025 - Present

Japanese Language AI Trainer / Expert Contractor

OtherAudio
Serving as a Japanese Language AI Trainer and Expert Contractor, I participated in RLHF projects geared towards evaluating LLM voice and audio performances. I assessed the quality of model-generated Japanese writing and response outputs for both Google and OpenAI. My responsibilities included comprehensive Japanese writing review and audio evaluation using proprietary tools. • Engaged in quality assessment for AI-generated audio and text materials • Conducted thorough reviews of LLM responses with an emphasis on linguistic quality • Collaborated with international teams for guideline enforcement and review processes • Provided feedback for ongoing AI training improvements

Serving as a Japanese Language AI Trainer and Expert Contractor, I participated in RLHF projects geared towards evaluating LLM voice and audio performances. I assessed the quality of model-generated Japanese writing and response outputs for both Google and OpenAI. My responsibilities included comprehensive Japanese writing review and audio evaluation using proprietary tools. • Engaged in quality assessment for AI-generated audio and text materials • Conducted thorough reviews of LLM responses with an emphasis on linguistic quality • Collaborated with international teams for guideline enforcement and review processes • Provided feedback for ongoing AI training improvements

2025 - Present

Japanese Language AI Trainer / Reviewer

OtherTextRLHF
As a Japanese Language AI Trainer/Reviewer at Outlier, I reviewed AI training data and annotations for large language models. My responsibilities involved RLHF, SFT projects, and ranking model outputs for quality and instruction adherence. I also participated in prompt engineering and multilingual transcription for LLM improvement. • Conducted RLHF and supervised fine-tuning tasks on LLM outputs. • Reviewed and validated data annotations for language model training. • Ranked responses based on relevance and adherence to instructions. • Performed multilingual transcription tasks for model improvement.

As a Japanese Language AI Trainer/Reviewer at Outlier, I reviewed AI training data and annotations for large language models. My responsibilities involved RLHF, SFT projects, and ranking model outputs for quality and instruction adherence. I also participated in prompt engineering and multilingual transcription for LLM improvement. • Conducted RLHF and supervised fine-tuning tasks on LLM outputs. • Reviewed and validated data annotations for language model training. • Ranked responses based on relevance and adherence to instructions. • Performed multilingual transcription tasks for model improvement.

2024 - Present

Japanese Language AI Trainer / Search Quality Rater

OtherText
As a Japanese Language AI Trainer and Search Quality Rater for Welocalize/Welo Data, I performed data labeling and AI evaluation on various Google projects. My tasks included web search quality rating, AI annotation, and evaluation of model response and speech recognition output. I ensured guideline compliance and contributed to factuality and usefulness assessments for LLMs and related data. • Evaluated and rated web search results for quality and relevance. • Labeled AI-generated outputs for accuracy and usefulness. • Performed speech and audio evaluation for AI models. • Adhered to strict annotation guidelines and formatting rules.

As a Japanese Language AI Trainer and Search Quality Rater for Welocalize/Welo Data, I performed data labeling and AI evaluation on various Google projects. My tasks included web search quality rating, AI annotation, and evaluation of model response and speech recognition output. I ensured guideline compliance and contributed to factuality and usefulness assessments for LLMs and related data. • Evaluated and rated web search results for quality and relevance. • Labeled AI-generated outputs for accuracy and usefulness. • Performed speech and audio evaluation for AI models. • Adhered to strict annotation guidelines and formatting rules.

2023 - Present

Education

O

Oxford Brookes University

Sociology,Linguistics, Sociology,Linguistics

Sociology,Linguistics
1991 - 1995

Work History

O

Outlier

AI Trainer

Remote
2024 - Present
W

Welocalize

Google SQR, AI Trainer

Remote
2023 - Present