Infrastructure & Security Engineer

Our client is seeking an experienced Infrastructure Security Engineer to support and secure a hybrid Microsoft environment spanning both on-premises and cloud platforms. This role is ideal for a hands-on professional with deep experience across traditional server and network infrastructure, along with responsibility for enterprise security tooling, threat monitoring, and ongoing security operations. The organization is currently in a hybrid state and actively transforming to a more cloud-centric environment, so this individual will play a key role in both day-to-day operational security and longer-term modernization efforts. Based on general knowledge.

Key Responsibilities

Manage and secure core infrastructure, including servers, networks, firewalls, switches, VPNs, and related systems in a hybrid on-premises and cloud environment. Based on general knowledge.

Administer, maintain, and optimize security tools such as endpoint protection, vulnerability management, SIEM, email security, identity and access management, and monitoring platforms. Based on general knowledge.

Monitor infrastructure and security events, investigate alerts, respond to incidents, and support remediation efforts. Based on general knowledge.

Partner with infrastructure and leadership teams to strengthen security controls across Microsoft technologies, including Active Directory, Azure, Microsoft 365, and related platforms. Based on general knowledge.

Support the company’s transition from traditional on-premises infrastructure to cloud-based solutions by helping design and implement secure architectures and best practices. Based on general knowledge.

Perform vulnerability assessments, patch management coordination, system hardening, and access reviews across servers, endpoints, and network devices. Based on general knowledge.

Develop and maintain security documentation, standards, procedures, and incident response processes. Based on general knowledge.

Assist with compliance, audit readiness, and security improvement initiatives. Based on general knowledge.

Collaborate with internal teams and third-party vendors to ensure reliable infrastructure performance and effective security coverage. Based on general knowledge.

Required Qualifications

5+ years of experience in infrastructure engineering, systems administration, network engineering, cybersecurity, or a related role. Based on general knowledge.

Strong hands-on experience with traditional server and network infrastructure, including Windows Server, virtualization, networking, firewalls, and enterprise environments. Based on general knowledge.

Experience administering and supporting security technologies such as SIEM, EDR, MFA, vulnerability scanning, email security, and log monitoring tools. Based on general knowledge.

Experience working within Microsoft environments, including Active Directory, Azure, Microsoft 365, Entra ID/Azure AD, Intune, and related services. Based on general knowledge.

Understanding of hybrid infrastructure security principles and cloud security best practices. Based on general knowledge.

Ability to monitor, analyze, and respond to security and infrastructure events in a fast-paced environment. Based on general knowledge.

Strong troubleshooting, documentation, and cross-functional communication skills. Based on general knowledge.

Preferred Qualifications

Experience supporting cloud transformation or migration initiatives from on-premises to Azure or other cloud platforms. Based on general knowledge.

Familiarity with zero trust concepts, identity security, conditional access, and security baselines within Microsoft environments. Based on general knowledge.

Exposure to compliance frameworks, audit support, and security governance practices. Based on general knowledge.

Relevant certifications such as Security+, CISSP, Microsoft security certifications, Azure certifications, or similar are a plus. Based on general knowledge.

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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.