Senior Infrastructure Security Engineer

Senior Infrastructure Security Engineer

AEGIS Insurance Services, Inc. (“AEGIS”) has an immediate opening for a Senior Infrastructure Security Engineer responsible for implementing, administering, and supporting security controls embedded in the organization’s on-premises, cloud, and hybrid technology environment. The position works closely with Infrastructure, the Office of the CISO, Network, Application, Database, and End-User Support teams. The role provides senior infrastructure-security expertise while preserving IT ownership of production platforms, availability, configuration, and change execution.

The Office of the CISO establishes security policy, standards, risk priorities, monitoring requirements, and independent oversight; IT assesses, tests, implements, documents, and supports production-impacting changes through established controls.

• Minimum 10 years of increasing levels of responsible experience in systems engineering, infrastructure engineering, security engineering, and/or infrastructure security
• Microsoft, Azure, infrastructure, or security certifications are desired; CISSP or a comparable security certification a plus
• Demonstrated hands‑on experience with Windows Server, Active Directory, Group Policy, DNS, Microsoft Entra , Microsoft 365, Microsoft Intune, and Microsoft Azure
• Undergraduate degree in Information Technology, Computer Science, Cybersecurity, Information Systems, or a related field, or equivalent work experience
• Working knowledge of hybrid identity, Conditional Access, multifactor authentication, endpoint security, vulnerability remediation, infrastructure hardening, and network‑security controls
• Highly proficient in Power Shell scripting, automation, technical troubleshooting, documentation, and analytical skills
• Experience with tools such as Sentinel One, Tanium, Qualys, Zscaler, Okta, and Darktrace is desired
• Ability to independently manage priorities and collaborate across IT, the Office of the CISO, business stakeholders, vendors, and service providers
• Availability to work outside of normal business hours as required in order to participate in on‑call support and scheduled implementations, maintenance, and remediation
• Experience responding to high‑priority incidents, communicate operational risk, and follow change, incident, access‑management, and segregation‑of‑duties controls

• Collaborative Communications and Behavior:
  Develops and maintains effective working relationships as a team member and across divisions; readily collaborates and shares information, seeks and provides constructive feedback, and supports a respectful workplace

• Initiative and Accountability:
  Proactively addresses opportunities to enhance AEGIS’ people, processes, products, and services, takes ownership for one’s responsibilities by acting with integrity and in the best interest of the organization and stakeholders

• Quality‑Focused:
  Demonstrates a solution‑focus, displays thoroughness and accuracy through quality deliverables, and demonstrates persistence and perseverance in achieving concrete and tangible outcomes

• Service‑Oriented:
  Conveys a genuine desire and ability to anticipate and meet customer needs and creates and nurtures mutually beneficial relationships within AEGIS and with AEGIS Members and brokers

• Administer and support Windows Server, Active Directory, Group Policy, DNS, file services, virtualization, and hybrid infrastructure
• Administer Microsoft Entra , hybrid identity, service accounts, delegation, permissions, identity federation, Conditional Access, MFA, and device‑registration controls
• A…