Mizuho is a Japanese banking group whose UK early-career hiring, for Mizuho Bank and Mizuho International in London, is outsourced to the Graduate Recruitment Bureau. GRB hosts the listings, takes the application, issues the online test and sends the video-interview link; Mizuho runs the assessment center and makes the offer. The published sequence has been identical across the 2026 and 2027 cycles.
The open question is the test itself. Mizuho’s careers page calls stage two "Online Testing", says it is administered by GRB, and stops there. Every live GRB listing says only "Online assessment & video interview". Some candidates report that this stage was an Arctic Shores task-based assessment. We could not confirm it: the candidate reports sit on pages that would not load for us, Arctic Shores does not name Mizuho in its own client material, and Mizuho has never published a vendor. Prep sites that state Arctic Shores as fact are doing so on the same unverified basis.
That matters practically, because you cannot prepare for a specific battery you cannot confirm. This page gives you every stage that is officially documented, the dates for the 2027 cycle as they stood on 11 September 2026, what candidates describe at the video interview and assessment center, and honest category practice for an unnamed online test. Your invitation email is the only document that names the platform.