Mizuho Banking - Internal Audit Summer Internship

Mizuho is not your typical financial institution.

We offer a fantastic opportunity to gain experience within a global investment bank, working on real projects, whilst developing a strong professional network within a bank that prides itself on its inclusive, cooperative and friendly company culture.

We offer the best of both worlds - the feeling of a boutique work environment within a global organisation. Our steady growth in EMEA gives our people at all levels rewarding degrees of responsibility and a richer work experience than a small firm or an established giant could offer alone.

Summer Internship – Internal Audit Department Europe (IADE)

The Internal Audit Department at Mizuho operates independently to assess the effectiveness of the company’s first and second lines of defence.

Working in the internal audit function is a fantastic way to understand how the company operates, learn about different departments, the processes required to run the business and be involved in safeguarding the company from the risks it faces by highlighting control gaps and providing advice on how to manage them. Developing strong risk identification and risk management skills has meant individuals working in internal audit have gone on to be an asset to other departments if they choose to explore alternate career paths.

Within Internal Audit, we have a number of teams responsible for assessing the design and operating effectiveness of the firm’s risk management frameworks and internal controls within the various business lines. This ranges from Banking, Markets, Compliance and Payroll to Regulatory Compliance and Operations.

What will I be doing?

Over 10 weeks, you’ll work directly with the Internal Audit (IADE) team, gaining first-hand experience across:

• Supporting audits of various risk and control processes across business lines.
• Assessing and analysing potential risks within processes and systems.
• Executing testing procedures to evaluate the effectiveness of internal controls, identifying deficiencies, and drafting audit findings.
• Supporting audit planning, fieldwork, and preparation of work papers and draft reports.
• Collaborating with wider IADE and cross-functional teams to implement corrective actions and improve internal controls.
• Engaging with stakeholders and contributing to continuous monitoring and risk impact analysis.
• Ensuring compliance with internal audit methodologies, quality standards, and regulatory requirements.

Successful interns will be offered a place on our Graduate Programme starting in September 2027.

What can we offer you?

• Real-World Experience: Work on live projects with our Sales & Trading desks.
• Personalised Guidance & Mentorship: One-on-one guidance from experienced market professionals.
• Comprehensive Training: Technical training and tailored soft skills sessions designed to help you thrive in a professional environment.
• Buddy System: A dedicated peer mentor to support you throughout your internship.
• Career Progression: A direct route to our graduate programme
• Highly competitive salary, in line with salaries offered by other London Corporate Investment Banks.

What are we looking for? 

You must be:

• In your penultimate year of undergraduate study, with an expected graduation in 2027 (please ensure this is clearly stated on your CV and updated on your GRB profile). 
• Available for full-time employment from September 2027.
• Curious about financial services and motivated to learn about banking, risk, and auditing.

Knowledge of financial services, auditing, SOX, or data analytics is an advantage, but not essential. All degree backgrounds are welcome. 

Unfortunately, Sponsorship cannot be offered for this role.

We are an equal opportunity employer and are committed to supporting equality and diversity and seek to create a workplace that is fully inclusive.

What’s the Application Process?

1. Apply with your CV –  no cover letter required, but please ensure your CV is tailored to this internship and that your graduation year is correct on both your CV and GRB profile.
2. Online assessment & video interview – a chance to share your motivations, skills, and personality.
3. Assessment Centre (London – first week of December) – meet our team, experience our culture, and see why Mizuho is the right place for you.

Applications may close early, so please apply as soon as possible.

Important Note: Mizuho offers multiple summer internships, but we can only consider your application for one. Please apply to the internship that best aligns with your skills and interests.