- Developed backend systems including merchant dashboard, referral code module, analytics, and media matching tracker, driving 800+ merchant registrations within one year. - Reduced merchant churn from 18% to 13.5% within one year by optimizing UI/UX and product features. - Integrated LINE API to automate messaging, reducing daily support inquiries by 60%. Replaced third-party CRM (migrated from Salesforce to Kintone), saving NT$4,500 per month and improving customization flexibility. - Designed new payment system, lowering checkout drop-off rate from 20% to 15% to improve contract conversion. - Managed 3-person CS team, improved internal workflow, strengthened cross-functional collaboration, and led recruitment and onboarding of new team members.

- Oversaw ERP system operations and merchant onboarding process for 120+ SMB clients. - Coordinated supplier communication and managed feature updates for internal tools, including ERP vendors, ad agencies, and payment service providers. - Implemented e-signature tool (DottedSign) and CRM system to reduce manual tasks by 40%. - Launched Meta and Google Ads campaigns, boosting conversion rates from 5% to 15–20% and doubling ROAS within one year. - Created and led internal PM playbook and onboarding initiatives, including hosting an internal workshop and revamping the legacy PM knowledge base for smoother team transitions.