Seungyon (Yona) Lee-Product Manager
Check rate
Experience
Product Manager
Buzzbeaterz Inc.
- Led end-to-end app product development from concept and prototyping to launch, structuring workflows and prioritizing features across business, engineering, and marketing
- Worked directly with CEO on business strategy and milestone planning, translating strategic goals into aligned cross-functional execution
- Collaborated with engineers to define feature and user flow logic, develop prototypes, and conduct QA to improve app UX and interaction
- Identified product performance gaps through data analysis using Mixpanel and led experiments that resulted in a 15% increase in content creation through feature reprioritization and UX optimization
- Defined feature development priorities and monitored progress to ensure on-time product releases
Creator Partnership Manager Internship
Buzzbeaterz Inc.
- Analyzed creator channel performance data and developed monthly reports with action plans to drive creator growth and audience engagement
- Coordinated campaigns across creators, internal marketing teams, and external partner brands, ensuring seamless rollout and performance tracking
- Delivered 8+ campaign projects within 3 months; converted 3 into long-term partners
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Advertising, and Media and Entertainment.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Product Development, Quality Assurance, Marketing, and Sales.
Summary
Product Manager with experience building and iterating digital product from concept to launch in an IT startup, and with a background in International Business Management and Fine Arts. Strong in improving UX by translating user insights and performance data into product strategy. Hands-on in web and app prototyping, hypothesis testing, and collaborating with engineering and design to deliver intuitive user experience.
Skills
- Product Management
- Product Data Analysis
- Ux & User Flow Design
- Prototyping
- Feature Optimization
- Cross-Functional Collaboration
- Jira
- Slack
- Figma
- Mixpanel
- Notion
- Ms Office
- Google Workspace
- Adobe Creative Suite (Photoshop, Illustrator, Premiere)
Languages
Education
Berlin Professional School – HWR Berlin
Master of Science · International Business Management · Berlin, Germany
Hongik University
Bachelor of Fine Arts · Printmaking · Korea, Republic of
Certifications & licenses
Carbon Literacy Training
PRME (via Nottingham Trent University)
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Seungyon is based in Berlin, Germany.
Seungyon speaks the following languages: Korean (Native), English (Advanced), German (Intermediate), Japanese (Elementary).
Seungyon has at least 2 years of experience. During this time, Seungyon has worked in at least 2 different roles and for 1 company. The average length of individual experience is 1 year and 10 months. Note that Seungyon may not have shared all experience and actually has more experience.
Based on recent experience, Seungyon would be well-suited for roles such as: Product Manager, Creator Partnership Manager Internship.
Seungyon's most recent position is Product Manager at Buzzbeaterz Inc..
In recent years, Seungyon has worked for Buzzbeaterz Inc..
Seungyon is most experienced in industries like Information Technology, Advertising, and Media and Entertainment.
Seungyon is most experienced in business areas like Business Intelligence, Product Development, and Quality Assurance. Seungyon also has some experience in Marketing and Sales.
Seungyon holds a Master in International Business Management from Berlin Professional School – HWR Berlin and a Bachelor in Printmaking from Hongik University.
Seungyon has 1 certificate: Carbon Literacy Training.
The availability of Seungyon needs to be confirmed.
Daily rate distribution
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The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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