We are seeking a hands-on Senior Infrastructure Security Engineer to serve as a key technical partner within a lean, high-impact IT environment. This is not a siloed security role. This position sits at the intersection of infrastructure engineering, cybersecurity operations, cloud security, and enterprise systems administration. The environment is intentionally lean, giving this person broad ownership across both infrastructure and security initiatives with direct visibility to senior leadership and meaningful influence on technical direction. The organization operates globally within a highly regulated industry supporting mission-critical operations across multiple international offices. The company also offers exceptional organizational stability, strong employee tenure, and a highly collaborative environment where technical contributors are trusted with meaningful ownership and autonomy.

Why this role stands out:

• Broad ownership across infrastructure + security
• Direct visibility to senior leadership
• Ability to shape security strategy and operational maturity
• Lean environment where your work has immediate impact
• Strong balance of project work and operational engineering
• Exceptionally stable organization with strong employee retention
• Global organization supporting international operations
• Opportunity to modernize and improve security posture over time

Duties:

• Administer and secure Windows and Linux environments (nice to have)
• Manage and enhance identity/security controls across Active Directory, Azure/Entra, SaaS, and cloud platforms
• Support hybrid infrastructure including virtualization, cloud, networking, and endpoint environments
• Monitor and investigate security events across SIEM, EDR, and monitoring platforms