Jin K. - AI Annotation Specialist

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Yangpyeong-gun, Korea, Republic of

Experience

Sep 2025 - Present

3 months

AI Annotation Specialist

Tarmack (Freelance)

Conducting high-quality data annotation and evaluation for Google Meet enhancement models, focusing on multimodal content understanding (audio, video, and UX behavior signals).
Ensuring accuracy, consistency, and compliance with Google’s annotation guidelines through detailed review and precise labeling.
Collaborating with global annotation teams to resolve complex cases and maintain data quality standards.
Contributing to model improvements related to meeting summaries, speaker detection, and overall user experience optimization.

Oct 2022 - Apr 2025

2 years 7 months

Korea, Republic of

Head of BD/Supply

Backmarket Korea

Pioneered Back Market's entry into the Korean market, establishing a localized platform and driving revenue from zero to achieve company key KPIs.
Secured 20+ strategic partnerships, ensuring supply stability and expanding product categories by 20%.
Spearheaded the N-pay integration project, managing API implementation, SGI insurance setup, and KYC compliance to enhance payment security and efficiency.
Optimized customer service processes, reducing response times by 30% and increasing customer satisfaction.
Collaborated with HQ teams to tailor global marketing strategies for the Korean audience, resulting in a 20% user acquisition growth.

Jan 2022 - Aug 2022

8 months

Korea, Republic of

KR Head of BD

Shopback

Localized key business strategies and secured partnerships with major players, including G-market, Coupang, and Disney+, to drive market expansion.
Designed and implemented partnership plans tailored to domestic needs, contributing to significant market share growth.

Aug 2020 - Oct 2021

1 year 3 months

Korea, Republic of

General Manager

Wishmedia (JV with MediaMath)

Led business development and expanded new revenue streams, driving significant sales growth.
Managed partner contracts, programmatic marketing tools, and team operations.

Feb 2015 - May 2021

6 years 4 months

Singapore

Marketing & BD Lead

Koroneday

Oversaw general business operations, including global business development and marketing.
Analyzed and engaged with global users, aligning product experience with Korean fashion and culture.

Jul 2013 - Jan 2015

1 year 7 months

Singapore

Country & Biz Dev Manager

Somo Singapore

Managed business development for Korean companies across APAC.
Executed online marketing for both local Korean and global campaigns.
Handled global partnership management (Yahoo SG, Line SEA, Expedia APAC, Naver).

Jan 2013 - Jul 2013

7 months

Korea, Republic of

Global Sales Manager

App Disco

Managed global advertisers, sales operations, and contract negotiation for AdLatte and LatteScreen.

Apr 2008 - Dec 2012

4 years 9 months

Korea, Republic of

Global Account Manager

Yahoo

Managed global & local performance marketing accounts including ecommerce and travel (GMarket, Soim, Agoda).
Developed global online marketing strategies and analyzed performance using internal Overture tools.

Apr 2005 - Mar 2008

3 years

Korea, Republic of

Manager

Daeyoung Engineering

Supported business operations in the CEO office, assisting HQ and overseas business activities.

Summary

Proven Expertise in Market Launch and Localization: Successfully launched and scaled global platforms in the Korean market, including Back Market, by building local partnerships, optimizing supply chains, and adapting global strategies to meet local needs.
Strong Track Record in Business Development: Demonstrated ability to achieve revenue goals from zero, securing 15+ strategic partnerships and driving significant growth across diverse categories.
Leadership in Cross-Functional Collaboration: Experienced in managing cross-functional teams across marketing, finance, and product departments to ensure seamless integration and KPI achievement.
Expertise in Digital Transformation and Process Optimization: Led projects like N-pay integration, implementing innovative solutions to enhance payment systems, compliance, and customer experience.
Multicultural Work Experience: Extensive experience in global organizations, combining insights from both domestic and international markets to drive sustainable growth.