Mizuho Bank

Full Time, Analyst (Nov. 2025 - )

Seibi 2.0 Project Member

• Implementing new system that unites all EUC and accounting/booking system into one for all global Mizuho Branches

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APAC Function Head Assistant

• Collecting and analyzing statistics of Mizuho Seoul Branch

• Collaborating and accomplishing tasks of Mizuho APAC

• Arranging management and operation meetings with Mizuho APAC branches

Global Market Operation Services Data analyst

• Analsying data produced by Global Market Operation Services team on securities and derivative sales

• Implementing system that reduces reporting procedures to H.O. and increasing efficiency of the GMS team work.

Fixed Term, Analyst (Oct. 2024 - Oct.2025)

ISO 20022 Project Team Member

As a member of the ISO 20022 team, I played a key role in the implementation of the MX system, contributing to all core processes.

Key Responsibilities:

• Selected as 1st amongst Mizuho APAC branches in operations and ISO 20022 project for FY2025 Q1.

• Collected and analyzed real data from all unique operational cases at Mizuho Bank, Seoul Branch.

• Developed and refined 179 distinct branch operational case scenarios.

• Conducted User Acceptance Testing (UAT) for various financial transactions, including spot and forward trades, netting and partial payments, derivatives, inward and outward remittances, Continuous Linked Settlements, interbank services, Non-Deliverable Forwards, and message types MT900, MT910, and MT950 under the new MX framework.

• Analyzed test results and documented findings to identify and resolve defects in alignment with ISO 20022 logic.

• Independently designed and implemented an MX template for pain.001, ensuring compliance with both branch operations and SWIFT requirements.

• Optimized Business Continuity Planning (BCP) project expenses, achieving a cost reduction of 1 billion KRW, by leveraging existing MT202 functionalities to meet pacs.009 SWIFT requirements.

• Engaged in weekly coordination meetings with the head office and bi-weekly discussions with APAC branches.

• Maintained direct client communication, troubleshooting issues related to customer migration and ensuring a smooth transition.