HY Yuntaek Ha
KR EN
English Version

Data-driven
Commerce Strategy
Professional

A data-driven commerce strategy professional with hands-on experience in payment growth, platform growth, category strategy, and operational optimization.

2.4x payment growth · 1.6x user growth · KRW 200M annual cost savings

Download Resume (English) View Projects
2.4x
Payment Growth
1.6x
User Growth
2x
Listing Growth
₩200M
Annual Cost Savings

Basic Information

  • Name Yuntaek Ha
  • Email yuntaek.ha@gmail.com
  • Phone 010-4795-3330
  • Position Data-driven Commerce Strategy Planner

Keywords

  • Commerce Strategy category growth / payment conversion
  • Data Analysis SQL / funnel / LTV / cohort
  • Visualization QuickSight / Looker Studio / Superset
  • Collaboration engineering / ops / planning / marketing
Summary

Turning data into measurable commerce outcomes

At Joonggonara, I drove 2.4x payment growth through funnel analysis and high-value user segmentation. I also led a cafe-to-app growth initiative that increased users by 1.6x and listings by 2x. At KimCaddie, I introduced IVR-based booking automation and reduced annual operating costs by approximately KRW 200M.

How I solve problems

  • 1. Define the problem through KPI and customer behavior analysis
  • 2. Identify bottlenecks using SQL and visualization tools
  • 3. Build hypotheses and design experiments
  • 4. Execute product, policy, or process improvements
  • 5. Validate results and iterate

Core strengths

  • Commerce domain understanding Wemakeprice, Coupang, Joonggonara, KimCaddie
  • Execution-oriented strategy from analysis to implementation
  • Cross-functional collaboration from requirement definition to rollout
  • Measured results GMV, users, listings, and cost savings
Core Skills

What I bring

I have worked across commerce growth, payment conversion, category strategy, and operational improvement, always grounded in data and execution.

Business Analysis

SQL-based data extraction, KPI design, funnel analysis, LTV analysis, cohort analysis

Visualization & Reporting

QuickSight, Looker Studio, and Superset for dashboard building and monitoring

Commerce Strategy

Category growth, payment conversion, promotion optimization, high-value user strategy

Growth Projects

User acquisition, listing activation, incentive design, and growth experiment execution

Operational Optimization

Process redesign, automation, cost reduction, and quality/efficiency improvement

Cross-functional Work

Collaborating with engineering, operations, planning, and marketing teams

Career

Experience

My background spans major commerce and platform businesses, connecting customer behavior, product structure, and business performance.

KimCaddie

Operations Team Lead

Jun 2025 – Feb 2026
  • Defined service improvement initiatives based on operational data and VOC
  • Planned and implemented IVR-based reservation automation
  • Reduced annual operating cost by approximately KRW 200M
  • Improved call CS response rate from 10% to 80%

Joonggonara

Manager, Payment Partnership Team

Mar 2022 – Apr 2024
  • Performed SQL-based analysis and KPI reporting
  • Improved payment conversion through funnel analysis
  • Drove 2.4x payment growth and achieved highest annual payment volume in 2023
  • Increased NRU by 1.6x and listings by 2x through cafe-to-app growth project

Brands Company (formerly Skylab)

Team Lead, Marketing Planning

May 2021 – Jan 2022
  • Led Coupang Rocket Delivery channel operations
  • Improved inventory planning through sales data analysis
  • Achieved average monthly sales growth of over 10%

Coupang

L4, Pricing Operation

Apr 2020 – Aug 2020
  • Managed pricing policies and operational issues across categories
  • Built pricing logic for mask-related market volatility
  • Improved workflow efficiency through SQL-based analysis

Wemakeprice

Promotion Operation

Dec 2017 – Mar 2020
  • Operated food category price-comparison promotions
  • Built TOP SKU-based promotion strategy
  • Achieved No.1 performance in category and hit GMV/CM targets
Key Projects

Selected Projects

A selection of projects demonstrating measurable outcomes across payment growth, user growth, operational automation, and category strategy.

Ops Automation
2.4x Growth

IVR-based Reservation Automation

Replaced a phone-based manual reservation process with IVR automation to reduce missed bookings and operational risk.

View Details
Payment Growth
2.4x Growth

2.4x Payment Growth at Joonggonara Pay

Identified high churn in the chat stage through SQL-based funnel analysis and implemented automation to drive growth.

View Details
User Growth
1.6x Users

Cafe-to-App Growth Initiative

Designed a strategy to convert Naver Cafe traffic into app growth through account linkage and staged campaign design.

View Details
Category Strategy
No.1 Category

TOP SKU Promotion Optimization

Built a TOP SKU-focused promotion strategy for the food category using Pareto analysis and transaction data.

View Details
Education

Education & Certification

Bachelor

Sangmyung University (Cheonan), Financial Management

Mar 2010 – Aug 2016

Cert

Codeit, Python-based Big Data Analysis

Feb 2025 – Mar 2025

Cert

Code States, Full-stack Engineering Bootcamp

Dec 2020 – Apr 2021

Contact

Get in touch

I am open to opportunities in commerce strategy, growth, and business planning roles.

Yuntaek Ha

Data-driven Commerce Strategy Planner

Download Resume (English) Email