Product Manager · Design and research background

I make complex products easier to use and run.

I turn user needs and workflow failures into product choices: what to change, what to check, and where human judgment still matters.

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Selected work

Product decisions under real constraints.

Two connected cases: choosing what to reward as a program grew, then making the work behind it more reliable.

Growth · Reward Program · Sustainability

Yield Guild Games Program Manager → Product Manager 2023–2025

Choosing What to Reward as Participation Grew

A program built around rewarded activities grew quickly. The question shifted from driving participation to rewarding actions worth their cost, with revenue later entering the picture.

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5.9×: participants meeting criteria; 545 to 3,190
+24.5%: qualifying records per participant; 3.00 to 3.74 qualifying records per participant
60.7%: qualified participants who returned; 331 of 545 completed a quest in the following cycle

These are outcomes from the period when I managed GAP with internal teams and community contributors. I do not present them as outcomes caused by my work alone.

Workflow · Internal tools · Data

Yield Guild Games Program Manager → Product Manager 2023–2025

From Quest Failures to Product Requirements

Quests were rewarded activities that had to be prepared and published. Duplicate records, broken links, and unclear handoffs showed why reliable data and checks had to come before a full upload tool.

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Product-design foundation

Product management built on design and research.

Saphir is one selected example from over six years in product design and user research. That experience still shapes how I define problems and work with design and engineering teams.

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Le Figaro · Design-studio team member · 2016–2018

Saphir: One Design System, Different Products

Common interface rules that still left room for each Figaro product’s identity.

About

I work on the product and the system behind it.

I’m a Product Manager based in South Korea. Before moving into product management, I spent over six years in product design and user research.

That mix helps me when a problem spans what people see and the work behind it: how a product behaves, the rules and data it relies on, and the tools and teamwork needed to run it.

View resume (PDF) ↗

Contact

Looking for a product manager who can improve the experience and the systems behind it?

Email Benjamin