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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/RatingEvaluation/Rating
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
RLHFRLHF
Translation/LocalizationTranslation/Localization
TranscriptionTranscription
Data CollectionData Collection
Red TeamingRed Teaming
Question AnsweringQuestion Answering
ClassificationClassification
Text GenerationText Generation
Text SummarizationText 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