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Mizuho Securities USA

Global banking, equities, and fixed-income platform

Cloud Platform Architect - Entra

System AdministrationConfirmed live in the last 24 hours
Full-timeNew York, NY, USA

About the Job

Requirements

  • At least 7 years of experience in identity or infrastructure engineering, including deep hands-on Microsoft Entra ID experience at enterprise scale.
  • Proven experience in regulated financial services (banking, capital markets, or insurance) or a comparably regulated environment.
  • Strong command of Conditional Access design, Privileged Identity Management, hybrid identity (Entra Connect or cloud sync), and workload identity patterns.
  • Experience taking ownership of an established identity estate and maturing its configuration, documentation, and controls.
  • Working knowledge of authentication standards (OpenID Connect, OAuth 2.0, Security Assertion Markup Language) and modern authentication policy, including phishing-resistant multifactor authentication and token protection.
  • Solid working knowledge of the broader Azure platform, including role-based access control, Azure Policy, Key Vault, and identity integration with core infrastructure services.
  • Familiarity with control frameworks and regulatory expectations for identity and access management.
  • Proficiency in scripting and automation using PowerShell and Microsoft Graph API.

Responsibilities

  • Own the Microsoft Entra estate, including tenant configuration, Conditional Access, Privileged Identity Management, and entitlement management.
  • Design hybrid identity, including synchronization scope, attribute flow, authentication method, and cloud-only account policy.
  • Define identity patterns for platform services, including workload identities, service account lifecycle, and non-human identity governance.
  • Design break-glass access and integrate it with the bank's privileged access management platform.
  • Architect external and business-partner identity using Entra External ID according to the cloud roadmap.
  • Create identity blueprints, runbooks, and documentation that make the estate operable beyond one person.
  • Design and operate secure, compliant identity for the Azure estate using Microsoft Entra ID, aligned with regulatory and internal audit requirements, including access control and multifactor authentication provisions.
  • Design, implement, and iterate Conditional Access policies, Privileged Identity Management, and entitlement management across the tenant.
  • Publish identity standards as documentation and consumable patterns, including reference designs, reusable Terraform modules, and paved-road configurations.
  • Enforce identity guardrails through Azure Policy and automation rather than manual approval.
  • Own hybrid identity and the technical interface with the directory services team, including Entra Connect scope, synchronization decisions, cloud-only accounts, and boundary controls.
  • Design workload identity patterns for Azure services and pipelines, including managed identities, workload identity federation, and service principal lifecycle.
  • Partner with Security, Risk, and Compliance to integrate regulatory controls and evidence collection into identity designs.
  • Represent cloud identity in audit and regulatory conversations.

Desired Qualifications

  • Infrastructure-as-Code experience is preferred.

About the Company

Mizuho Securities USA

Global banking, equities, and fixed-income platform

Mizuho Securities USA is part of Mizuho Financial Group, a global financial services firm that blends Eastern and Western banking and market practices to serve corporations, private equity firms, and institutional investors. It operates a full-service platform spanning banking, equities, and fixed income, offering strategic and financing solutions along with risk management. The company earns revenue from interest on loans, advisory and financing fees, and trading income across its global equities and fixed income desks. Its approach combines cross-border know-how with local market expertise to tailor solutions for clients. Unlike peers, it emphasizes a long-standing CSR and diversity program, integrating ethical practices and social initiatives into its operations. The goal is to help clients shape their futures and reach their long-term objectives by providing comprehensive financial services and responsible leadership across global markets.

Company size
10,001+
Company stage
IPO
Headquarters
Tokyo, Japan
Founded
2000

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