Available to hire
I’m Dongjin (Tony) Yoon, an IT professional with a Computer Systems Technician diploma and over 6 years of experience in technical support, customer service, AI data labeling, and content moderation. I thrive in fast-paced environments and am dedicated to delivering high-quality client support and building positive customer relationships.
Experience Level
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Korean
Fluent
Work Experience
Technical Support Case Manager at Concentrix
December 31, 2024 - August 19, 2025Directed and managed consumer case handling, achieving over 95% timely resolution. Resolved warranty and liability disputes, coordinating with dealers and legal teams. Developed and maintained reporting systems to track and manage high-risk cases. Collaborated with cross-functional teams to improve customer satisfaction outcomes.
Technical Support Case Manager at Concentrix
December 1, 2024 - December 1, 2024Directed and managed consumer case handling, achieving 95%+ timely resolution. Resolved warranty and liability disputes, coordinating with dealers and legal teams. Developed and maintained reporting systems to track and manage high-risk cases. Collaborated with cross-functional teams to improve customer satisfaction outcomes.
Freelance AI Project Contributor at Outlier AI
November 1, 2024 - November 7, 2025Participated in Korean and English language AI training projects as a freelance contributor. Reviewed and refined AI-generated content to ensure natural language flow and cultural accuracy. Performed labeling and quality checks on text data to support language model development. Collaborated with project teams to meet linguistic and quality standards for bilingual datasets.
Content Editor at Outlier AI
November 1, 2024 - PresentEvaluate AI-generated content and craft original responses to improve writing quality. Collaborate on Korean language data moderation and labeling tasks, ensuring cultural and linguistic accuracy for AI model training. Conduct QA and annotation of large datasets, improving NLP model performance by reducing error rates by 15%. Review and process over 200 AI responses daily, ensuring consistency and accuracy.
Online Content Moderator at Concentrix
June 1, 2023 - June 1, 2023Monitored and reviewed flagged user content across multiple platforms. Applied AI tools to identify problematic or policy-violating submissions. Produced daily and quarterly analytical reports for clients.
Online Content Moderator at Concentrix
June 1, 2023 - August 19, 2025Monitored and reviewed flagged user content across multiple platforms. Applied AI tools to identify problematic or policy-violating submissions. Produced daily and quarterly analytical reports for clients.
Content Moderation Auditor at Cognizant
December 31, 2020 - August 19, 2025Audited client content moderation strategies and ensured compliance. Recommended policy updates and improved internal control systems. Monitored performance and provided recommendations to improve platform safety.
Content Moderation Auditor at Cognizant
December 1, 2020 - December 1, 2020Audited client content moderation strategies and ensured compliance. Recommended policy updates and improved internal control systems. Monitored performance and provided recommendations to make platforms safer.
Product Process Specialist at Best Buy Canada
December 31, 2018 - August 19, 2025Multi-channel sales associate maintaining knowledge of technology products and industry trends. Managed logistics for incoming and outgoing shipments and product placement.
Product Process Specialist at Best Buy Canada
December 1, 2018 - December 1, 2018Multi-Channel Sales Associate, Maintained knowledge of technology products and industry trends. Managed logistics for incoming/outgoing shipments and product placement.
Cashier & Merchandiser at Shoppers Drug Mart
December 1, 2016 - December 1, 2016Provided excellent customer service and operated cash register with accuracy and efficiency. Managed merchandise display and restocking to maintain product presentation and inventory levels.
Education
Computer Systems Technician Diploma at George Brown College
January 11, 2030 - August 19, 2025Bachelor's degree Business Administration at Kyungpook National University
January 11, 2030 - August 19, 2025Computer Systems Technician Diploma at George Brown College, Toronto
January 11, 2030 - November 7, 2025Bachelor's degree at Kyungpook National University, South Korea
January 11, 2030 - November 7, 2025Qualifications
Data Analytics Professional Certificate
January 11, 2030 - August 19, 2025Microsoft Office Specialist (MOS) Certification
January 11, 2030 - August 19, 2025Data Analytics Professional Certificate
January 11, 2030 - November 7, 2025Industry Experience
Computers & Electronics, Software & Internet, Retail, Professional Services, Media & Entertainment, Other
Experience Level
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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