Senior Infrastructure Security Engineer

Job overview

The Senior Infrastructure Security Engineer role is onsite in Bloomingdale, IL; compensation is not specified. The role works with the infrastructure team and partners across IT Security, Operations, and Networking. This engineer strengthens infrastructure and identity security by hardening systems, addressing vulnerabilities, improving recovery readiness, and supporting monitoring and incident response.

What you'll do

• Secure Windows Server, Active Directory, and Microsoft 365 configurations
• assess security posture and remediate gaps
• audit identity and privileged access
• maintain Conditional Access and MFA controls
• support Purview data-loss prevention and information protection
• lead patching and vulnerability remediation
• test backups and disaster recovery
• review alerts and support investigations
• improve endpoint and network security
• maintain runbooks and support change control.

What we're looking for

Skills & competencies

infrastructure security

security engineering

active directory

microsoft 365

entra id

windows server

patching

vulnerability management

disaster recovery

bloomingdale il

now health group

Work arrangement

• Weekend coverage required

Why this role

Hands-on security leadership across Active Directory, Microsoft 365/Entra ID, Windows Server, patching, vulnerability remediation, and recovery practices.

About the employer

NOW HEALTH GROUP, INC. is hiring for this role. Industry: Other Scientific and Technical Consulting Services. Sector: 54.