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Park hyobinPH
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Park hyobin

@parkhyobin

Technical Product Owner at Nexon who improved SIREN metric creation success from under 20% to 60% and automated SDK documentation at Sendbird.

South Korea
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What I'm looking for

I'm open to remote roles with APAC or EU teams, as an independent contractor or through an EOR engagement.

At NEXON Korea, I owned four data products for operations and business teams across 40+ games. For SIREN, I used behavior logs and onboarding observations to prioritize a beginner-focused redesign, raising metric creation success from under 20% to 60%.

At Sendbird, I built an agent workflow to draft and review SDK documentation, reducing average update lead time from 10 business days to 3. I’ve also shipped independent products and worked as a freelance Product Manager on a wearable sports data platform, shaping its phased MVP and delivering user flows and wireframes.

Experience

Work history, roles, and key accomplishments

Sendbird logoSE

Technical Writer (Contract)

Nov 2025 - Apr 2026 (5 months)

Built a documentation automation system for SDK and API docs, using an agent workflow where SDK releases and Jira feedback produce an AI draft checked by editor and user agents, then approved by a writer in Slack. Reduced documentation update lead time from 10 business days to 3, with 50% of AI drafts approved without edits.

Nexon Korea logoNK

Data Analyst

Nexon Korea

Mar 2021 - Feb 2023 (1 year 11 months)

Worked on the Anomaly Detection & Security Solutions PM Team, supporting product development with data analysis and contributing to community issue detection and other data products.

ETRI logoET

Research Intern

ETRI

Jan 2020 - Feb 2020 (1 month)

Built CNN models predicting semiconductor thin-film thickness from light reflectance data, achieving best MAE of 0.589. First author of paper presented at IEEE ICCE-Asia 2020.

WP

Product Manager (Freelance)

Wearable Sports Data Platform

Jul 2026 - Present (4 months)

Gathered client requirements and proposed MVP, phase 2 and phase 3 scope, then trimmed the MVP to the launch date using the development agency's estimates. Resolved a disagreement between client and agency over GPS maps by putting raw GPS collection in the MVP and the map view in phase 2.

Education

Degrees, certifications, and relevant coursework

Korea University of Technology and Education logoKE

Korea University of Technology and Education

Bachelor of Science, Computer Science and Engineering

2015 - 2020

Bachelor of Science in Computer Science and Engineering from Korea University of Technology and Education, completed in 2020.

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