• as a leader of the ML strategy unit consisting of ML product strategists, ML data strategists, labeling managers, and labeler educators, clarified each position’s R&R and developed the overall work pipeline. • enhanced fine-tuning dataset quality for the chatbot, achieving a milestone of 2 million users along with 18% of retention rate. • made a new persona chatbot from a to z, reaching 50,000 DAUs in CIC project. • conducted in-depth research on the diverse LLM FT techniques and designed training data schema for SFT, Instruction FT and RLHF through intensive discussion with ML researchers. • proposed a ‘regeneration’ feature of a chatbot by implementing qualitative and quantitative data segment analysis using Python, generating data worth ₩5.5M every month. • organized and trained a labeling team consisting of 2 labeling managers, 5 educators and 40+ freelancers for labeling tasks. • optimized the pipeline from data construction to quality check system, which reducted labeling time by 45%.

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• led 9 projects by providing in-depth AI consulting and constructing high-quality data for clients such as Samsung and SKT, generating a total revenue of ₩1.1B. • managed and motivated a team of 4 junior PMs, handling 12 projects and 200+ labelers at a time. • created one-page analysis for the sales team evaluating new contract terms such as pricing and schedule based on accumulated project experiences, reducing renegotiation rate from 30% to 10%. • provided regular NLP labeling seminars for freelancer labelers, which resulted in an unprecedent data accuracy of 76.29% on NLI task in KLUE benchmark compared to Stanford average of 58.3%. • conducted an analysis of the correlation between a labeler’s submission time and accuracy using SQL, which became a starting point for limiting work submissions per a time period within the platform.

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• cold-called 50+ potential clients on a daily basis, with a closing rate of 10% to 25%. • proposed and located new potential business partnerships (B2G) by contacting government institutions and attending networking events, which resulted in 27 new strategic partnerships. • hit and exceeded sales KPIs by 30% for the months of June and July by implementing action items to achieve daily goals.

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