io a
@ioa
Detail-oriented Data Operations Specialist and sound engineer driving high-quality AI TTS data and media workflows.
South KoreaWhat I'm looking for
I’m a detail-oriented Data Operations Specialist and Sound Engineer with nearly 2 years of experience across AI voice synthesis (TTS) development and media content production. I’ve built a track record in data labeling, quality control (QC), and vendor management, while contributing to high-quality VARCO TTS audio data pipelines.
I’m especially proud of leading a Korean data team to standardize workflows and revise operational guidelines on Confluence—work that reduced project timelines by approximately 3 months. I also support AI training by evaluating, generating, and refining data for large language models (LLMs), with a focus on safety, accuracy, and consistent outcomes.
Experience
Work history, roles, and key accomplishments
AI Data Trainer (Project Contributor)
Outlier & DataAnnotation
Jan 2026 - Present (6 months)
Participate in AI training projects by evaluating, generating, and refining high-quality data to improve large language models (LLMs). Conduct prompt engineering, response evaluation, and data annotation focused on safety, accuracy, and performance.
Audio Data Team Member / Korean Lead
NCAI
Feb 2025 - Jun 2025 (4 months)
Contributed to development of NCSOFT’s VARCO TTS (Text-to-Speech) engine while leading the Korean part of the audio data team. Supervised QC, managed schedules and vendor recording quality, and updated Confluence guidelines to reduce worker errors.
Audio Data Team Member / Sound Engineer
NCSOFT
Sep 2024 - Feb 2025 (5 months)
Supported development of the VARCO TTS engine with a focus on high-quality audio data processing. Performed audio preprocessing (noise reduction and mixing) and managed recording operations and final data verification.
Audio PD / Content Planning Team
Studio 161
Jul 2022 - Jul 2023 (1 year)
Produced, recorded, and edited audio content for SBS Podcasts and handled live audio engineering for YouTube broadcasts. Managed voice-over news segments and supported digital content planning by drafting articles and uploading content.
Intern PD
Studio 161
May 2020 - Dec 2020 (7 months)
Assisted production for the SBS Podcast Newsroom, including audio recording and editing and related content management tasks.
Education
Degrees, certifications, and relevant coursework
Sookmyung Women's University
Bachelor of Communication and Media, Communication and Media (Storytelling)
2017 -
Activities and societies: Grand Prize, Media Content Contest (Short Film) — 2017 and 2018.
Bachelor's program in Communication and Media with a double major in Storytelling, expected to complete in 2026.
Availability
Location
South KoreaAuthorized to work in
Job categories
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