Mizuho Tech Stack

Global investment and retail bank managing $2.8T+ in assets from Tokyo

Financial Services Tokyo, Japan 10,001+ employees Public Company

Mizuho is a large-cap Japanese bank with 10,000+ employees operating across investment banking, corporate finance, and trading. The hiring mix reveals a finance-first org (99 finance roles) with active scaling in engineering (34), ops (33), and security (24)—typical of legacy banks modernizing core systems. Active projects span core banking implementation, cybersecurity posture improvement, and transaction monitoring enhancement, while pain points cluster around AML/regulatory compliance, data reconciliation, and onboarding friction. The tech stack (Oracle-heavy, now adopting Finastra and Flexcube while phasing out Hyperion) signals migration from monolithic enterprise banking infrastructure toward more modular fintech rails.

Tech Stack 167 technologies

Core StackOracle Database Linux PL/SQL Python ServiceNow Jira C# Salesforce Power BI C++ Rust Java SAP Oracle Workday Oracle RAC Oracle Grid Infrastructure Oracle Data Guard Oracle ASM AIX Windows SQL Unix Shell Enverus Spotfire Excel PowerPoint Microsoft Access Bloomberg Tradeweb+128 more

AdoptingFinastra Flexcube

ReplacingHyperion

What Mizuho Is Building

◆Challenges

Mitigating it risks
Compliance with sustainability regulations
Data reconciliation
Inefficient onboarding processes
Ensuring compliance with aml regulations
Ensuring compliance with bank standards
Streamlining controls and process flows
Compliance with regulatory requirements
Cross-functional coordination
Identifying security risks

▲Active Projects

M&a transactions
New client pipeline development
Implementation and engineering of cybersecurity solutions to improve security posture
Transaction monitoring system enhancement
Core banking implementation
Business continuity and disaster recovery planning
Migration and production support handover
Credit risk assessments
New product development
Development and roll out of compliance training programmes

Hiring Activity

Steady280 roles · 110 in 30d

Department

Finance

Engineering

Ops

Security

Legal

Data

Compliance

Risk

Seniority

Senior

Mid

Junior

Director

Lead

Manager

Intern

Notable leadership hires: Operational Resilience Lead, Procurement Lead, Head of Compliance Assurance, Compliance Chief of Staff, Liquidity Regulatory Reporting Lead

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About Mizuho

Mizuho is one of the world's largest banks, headquartered in Tokyo with a public company structure and operations across 13 countries including the United States, United Kingdom, Singapore, and Australia. The bank serves corporations, investment firms, and institutional clients through corporate & investment banking, sales & trading, project finance, and trade finance. Its 276 active job openings span finance, engineering, operations, security, compliance, and risk—reflecting both sustained client coverage and internal transformation. Core initiatives include core banking system modernization, cybersecurity hardening, business continuity infrastructure, and regulatory compliance automation.

HeadquartersTokyo, Japan

Company Size10,001+ employees

Hiring MarketsUnited States, Singapore, United Kingdom, China, Thailand, Canada, United Arab Emirates, Philippines

Frequently Asked Questions

What is Mizuho's tech stack?

Oracle (Database, RAC, Grid, Data Guard, ASM), Linux, Windows, AIX, SAP, Salesforce, ServiceNow, Jira, Python, Java, C#, C++, Rust, and Bloomberg/Tradeweb for markets. Currently adopting Finastra and Flexcube; phasing out Hyperion.

What is Mizuho working on?

Core banking implementation, cybersecurity solutions, transaction monitoring enhancement, M&A transactions, business continuity/disaster recovery, compliance training roll-out, and credit risk assessments.