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Yumi Kim

Korean LLM language Contributor & Reviewer

South Korea flagBellevue, South Korea
IntermediateOther

Key Skills

Software

Other

Top Subject Matter

Korean language
Llms Domain Expertise
Rlhf Domain Expertise

Top Data Types

AudioAudio
TextText
DocumentDocument

Top Task Types

Audio RecordingAudio Recording

Freelancer Overview

Korean LLM language Contributor & Reviewer. Brings 14+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Certificate, Hanuri (2024) and Post Baccalaureate Certificate, Seattle University (2012). AI-training focus includes data types such as Audio and labeling workflows including Audio Recording, Evaluation, and Rating.

Intermediate

Labeling Experience

Korean LLM language Voice actor

OtherAudioAudio Recording
As a Korean LLM language Voice Actor at Crowdgen, I recorded and delivered 1,500+ high-quality Korean voice samples for LLM training. I contributed to the creation of web-search-based datasets through Chain of Thought (CoT) data construction, ensuring accurate multi-step reasoning paths. My work maintained strict adherence to linguistic and emotional standards to support robust LLM development. • Mapped multi-step reasoning trajectories, including error recognition and hypothesis revision. • Consistently followed in-depth linguistic quality guidelines for every sample delivered. • Supported team initiatives to expand the range of problem-solving categories. • Delivered audio data optimized for advanced reasoning and machine learning.

As a Korean LLM language Voice Actor at Crowdgen, I recorded and delivered 1,500+ high-quality Korean voice samples for LLM training. I contributed to the creation of web-search-based datasets through Chain of Thought (CoT) data construction, ensuring accurate multi-step reasoning paths. My work maintained strict adherence to linguistic and emotional standards to support robust LLM development. • Mapped multi-step reasoning trajectories, including error recognition and hypothesis revision. • Consistently followed in-depth linguistic quality guidelines for every sample delivered. • Supported team initiatives to expand the range of problem-solving categories. • Delivered audio data optimized for advanced reasoning and machine learning.

2025 - Present

Korean LLM language Contributor & Reviewer

OtherAudioAudio Recording
As a Korean LLM language Contributor & Reviewer at Outlier, I generated and recorded high-quality multi-turn Korean audio prompts for AI training. I evaluated and refined complex linguistic nuances and communication styles to enhance LLM performance and authenticity. In addition, I conducted RLHF-based evaluations to detect hallucinations and improve alignment with human intent. • Authored detailed justifications and assigned comparative scores to dual LLM outputs. • Performed meticulous data annotation for Korean audio-transcript pairs. • Ensured maximum naturalness and reliability through strategic review processes. • Promoted based on continually delivering excellence in labeled data quality.

As a Korean LLM language Contributor & Reviewer at Outlier, I generated and recorded high-quality multi-turn Korean audio prompts for AI training. I evaluated and refined complex linguistic nuances and communication styles to enhance LLM performance and authenticity. In addition, I conducted RLHF-based evaluations to detect hallucinations and improve alignment with human intent. • Authored detailed justifications and assigned comparative scores to dual LLM outputs. • Performed meticulous data annotation for Korean audio-transcript pairs. • Ensured maximum naturalness and reliability through strategic review processes. • Promoted based on continually delivering excellence in labeled data quality.

2025 - Present

Korean LLM language trainer

OtherTextRLHF
Executed high-stakes RLHF evaluations by analyzing dual model responses to complex prompts; authored sophisticated justifications based on multi-dimensional criteria and assigned precise performance ratings. Conducted deep-dive comparative analysis to determine the superior output, providing expert-level justifications on how specific responses deliver more actionable and nuanced value to the user. Demonstrated exceptional cognitive focus and meticulousness under tight deadlines, leveraging human-centric logical reasoning to refine model-generated content. Applied advanced linguistic intuition to evaluate subtle nuances and communication styles, ensuring AI outputs align with professional-grade human standards and authenticity.

Executed high-stakes RLHF evaluations by analyzing dual model responses to complex prompts; authored sophisticated justifications based on multi-dimensional criteria and assigned precise performance ratings. Conducted deep-dive comparative analysis to determine the superior output, providing expert-level justifications on how specific responses deliver more actionable and nuanced value to the user. Demonstrated exceptional cognitive focus and meticulousness under tight deadlines, leveraging human-centric logical reasoning to refine model-generated content. Applied advanced linguistic intuition to evaluate subtle nuances and communication styles, ensuring AI outputs align with professional-grade human standards and authenticity.

2025 - 2026

Education

H

Hanuri

Certificate, Korean Literacy Instruction

Certificate
2024 - 2024
S

Seattle University

Post Baccalaureate Certificate, Teaching English to Speakers of Other Languages

Post Baccalaureate Certificate
2011 - 2012

Work History

C

Clydehill Elementary School

ELL Teaching Assistant

Bellevue
2013 - 2013
E

Echolab

HR Manager

Seoul
2009 - 2009