Senior Microsoft Security & Identity Specialist

The Phoenix Group; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

The Phoenix Group seeks a senior technologist to manage and enhance a predominantly Microsoft-based environment across identity, security, and infrastructure. You will collaborate with stakeholders and external providers to strengthen security controls, automation, and operational resilience.

Responsibilities include maintaining Entra ID, M365, Intune, Defender, Exchange Online, and Graph-based automation, while driving vulnerability remediation, incident response, and disaster recovery planning

Qualifications

• 7+ years in systems administration or infrastructure.
• Senior-level production environment experience.
• Hands-on with Microsoft stack (Entra ID, M365, Intune, Defender, Exchange Online).
• Strong networking and security fundamentals.
• Experience with endpoint security, patching, incident response, and hardening.
• Strong PowerShell skills and automation.
• Experience in security-conscious environments.
• Excellent communication and collaboration.

Responsibilities

• Administer Microsoft cloud infrastructure, endpoints, identity platforms, and related enterprise systems.
• Own identity and access management, including Entra ID, MFA, SSO, Conditional Access, privileged access, and user lifecycle processes.
• Manage Microsoft 365 environment including Exchange, SharePoint, Teams, OneDrive, and security/compliance functionality.
• Administer endpoint configuration and management through Microsoft Intune and related tooling.
• Maintain network and connectivity infrastructure, including firewalls, VPN, wireless, segmentation, and related security controls.
• Monitor endpoint and security technologies and investigate threats, vulnerabilities, and suspicious activity.
• Work with internal stakeholders and third-party security resources on incident investigation, containment, remediation, and recovery.
• Oversee patching, vulnerability remediation, endpoint hardening, and ongoing security improvements.
• Assist with infrastructure upgrades, system changes, configuration management, and technology implementations.
• Maintain backup and recovery processes and participate in disaster recovery and business continuity testing.
• Maintain technology asset records, licensing information, system documentation, and operational procedures.
• Assist with internal and external security assessments, audits, and compliance initiatives.
• Develop scripts and automations using PowerShell and Microsoft Graph to improve system administration and reduce manual processes.
• Help evaluate and implement security controls around emerging technologies, including AI-enabled tools and platforms.
• Create and maintain technical documentation, procedures, runbooks, and troubleshooting resources.
• Work closely with leadership and other technical stakeholders to identify infrastructure and security improvements.

Skills

PowerShell

Entra ID

Microsoft 365

Intune

Defender

Exchange Online

Networking

Incident response

Automation

Microsoft Graph

Tools

Microsoft Graph

Job description

The Phoenix Group seeks a senior technologist to manage and enhance a predominantly Microsoft-based environment across identity, security, and infrastructure. You will collaborate with stakeholders and external providers to strengthen security controls, automation, and operational resilience.

Responsibilities include maintaining Entra ID, M365, Intune, Defender, Exchange Online, and Graph-based automation, while driving vulnerability remediation, incident response, and disaster recovery planning