Senior Security Architect - AD/Entra ID (Remote in the US)

GuidePoint Security · Remote · Engineering

Posted 2026-08-25

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General Description

We are seeking a highly experienced Senior Security Architect (AD/Entra ID) to join our dynamic team and lead our identity and access management initiatives. The Senior Security Architect will be responsible for the scope, assessment, design, testing, and technical documentation for the implementation, support, and security of identity solutions. The Senior Security Architect will possess and maintain expertise in Microsoft Azure AAD (Entra) and Active Directory platforms utilizing the knowledge to address business requirements.

About the Active Directory/Entra ID Practice

Our team focuses on Securing Microsoft Identities, which includes both on-prem Active Directory and Entra ID. We partner with other Identity teams, threat assessment teams, and Cloud Security teams to cover IGA, PAM, IAM, AM, pen testing, and all areas within Microsoft on-prem AD and Entra ID.

Active Directory and Entra ID Security Assessments and Remediations

Active Directory Engineering (Domain consolidations, mergers and acquisitions, domain designs, Group Policy, CIS benchmarks, etc.)

Entra ID Identity design, troubleshooting, implementation

Roles and Responsibilities:

Lead the evaluation, design, and development of Active Directory & Azure Active Directory technical requirements, solutions, and implementation roadmap to ensure functional, reliable, secure, and cost-effective technology environment.

Develop and enforce IAM policies, standards, and procedures to ensure compliance with regulatory requirements and industry best practices.

Ensure continuous improvement within the IAM security architecture by introducing and implementing emerging security technologies and practices.

Provide to global project and operational teams technical advice, guidance, expertise, and risk analysis on your area of expertise.

Translate requirements into an Architectural design and influence the deployment of key infrastructure components.

Maintain a thorough understanding of existing and emerging Microsoft Entra ID and related core technologies.

Analyze current Azure Active Directory environment to identify both technical and operational challenges while making recommendations and developing solutions for improvement.

Maintain and optimize on-premises Active Directory (AD) infrastructure, including DNS, GPOs, and domain controllers.

Participate in or lead complex or high severity troubleshooting and incident/problem resolutions with other infrastructure teams.

Evaluate and ensure the resolution of technically complex security issues, internal control issues, critical incidents and/or crisis resolution management, escalating as necessary.

Implement and enforce Multi-Factor Authentication (MFA) and security best practices across user accounts and devices.

Develop and manage integrations using the Microsoft Graph API for automation and custom applications, enabling advanced capabilities across Microsoft 365 services.

Create custom scripts to automate administrative tasks and data retrieval from the Graph API, enhancing operational efficiency.

Write and maintain Advanced PowerShell scripts to automate user and resource provisioning, reporting, and service configurations across Entra ID and Active Directory.

Implement and maintain security best practices.

Required Experience and Education:

10+ years of relevant working experience in IT Security and IT Architecture

7+ years of experience with Active Directory architecture and infrastructure, with an in-depth understanding of Active Directory Replication, DNS, Site Links, Site Topology, Group Policy, Global Catalogs, and other core infrastructure components.

3+ years of experience with Azure Active Directory architecture and design

5+ years of experience with Identity and Access Management (IAM) processes and technologies

Proven expertise in designing and implementing IAM solutions in complex environments.

Expertise in managing Azure AD/Entra, including Conditional Access, MFA, security best practices, hybrid environments, GPO's, On-Premises Active Directory Migrations and Azure AD Connect.

Experience with Microsoft Graph API for data retrieval and automation across Azure AAD.

In-depth knowledge of identity governance, authentication, authorization, and federation. Including MFA, SSO and PAM

Understanding of federation technologies (WS-Fed, OAuth, SAML, etc.)

Enterprise/Domain Admin and/or Azure Global Admin responsibilities

Proven knowledge in managing Active Directory 2016/2019/2022 infrastructure for the Enterprise.

Strong experience in PowerShell and Microsoft Graph API is required.

Knowledgeable of Microsoft Security Stack: Defender for Office 365, Defender for Identity, Defender for Cloud Apps, Entra ID, Microsoft Purview Information Protection, Data Loss Prevention and Compliance Center Experience including – Litigation Hold, Retention, and eDiscovery.

Strong communication and interpersonal skills, with the ability to collaborate effectively with stakeholders at all levels.

Embraces emerging technologies, including AI tools, to work smarter, solve problems, and drive better business outcomes.

Relevant certifications such as CISSP, CISM, or Microsoft Certified: Identity and Access Administrator Associate are considered an asset.

Travel Requirements:

Up to 10% travel

Physical Requirements:

Sedentary work

Substantial movement of the wrists, hands, and/or fingers for a minimum of 8 hours a day

Required to have close visual acuity to view computer terminal and/or extensive reading for a minimum of 8 hours a day

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