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Waki Tajima

Waki Tajima

AI Trainer and LLM Evaluator (Freelance)

Japan flagKoshigaya, Japan
$31.00/hrIntermediateScale AIOther

Key Skills

Software

Scale AIScale AI
Other

Top Subject Matter

LLM evaluation and Japanese-language datasets
OCR annotation and document layout analysis
Speech data collection and audio evaluation for AI training

Top Data Types

TextText
AudioAudio
DocumentDocument
ImageImage

Top Task Types

RLHFRLHF
Evaluation/RatingEvaluation/Rating
Audio RecordingAudio Recording
Bounding BoxBounding Box

Freelancer Overview

AI Trainer and LLM Evaluator (Freelance). Core strengths include Other. AI-training focus includes data types such as Text, Image, and Audio and labeling workflows including Evaluation, Rating, and Bounding Box.

IntermediateJapaneseEnglish

Labeling Experience

Optical Character Recognition

OtherDocumentBounding Box
Annotation of an image and drawing bounding boxes around each word, transcribing it, and markingoverlaid/scene text; grouping word annotations into lines based on physical position, orientation, and semantic consistency, indicating if the line isoverlaid/scene text; grouping lines into meaningful semantic paragraphs, specifying if the paragraph is overlaid/scene text.

Annotation of an image and drawing bounding boxes around each word, transcribing it, and markingoverlaid/scene text; grouping word annotations into lines based on physical position, orientation, and semantic consistency, indicating if the line isoverlaid/scene text; grouping lines into meaningful semantic paragraphs, specifying if the paragraph is overlaid/scene text.

2025 - Present
Scale AI

AI Voice Trainer

Scale AIAudioAudio Recording
Record natural conversations for AI development. Create and record voice prompts for AI chatbot development

Record natural conversations for AI development. Create and record voice prompts for AI chatbot development

2025 - Present
Scale AI

AI Trainer

Scale AITextRLHFEvaluation Rating
Not specific on industry but specific to Japanse language

Not specific on industry but specific to Japanse language

2025 - Present

Education

W

Waseda University

Bacheor, Electronics and Communication Engineering

Bacheor
1981 - 1985

Work History

M

Mitsubishi Corporation

IT Specialist & Project Leader

Tokyo
1985 - 2024
M

Mitsubishi Corporation

Marketing and Sales Specialist

Tokyo
1985 - 1997