Lead Systems Infrastructure Engineer

What you'll do

• Manage the day-to-day engineering, administration, and support of the enterprise Active Directory environment.
• Engineer and maintain enterprise DNS, DHCP, and IP address management (DDI) services.
• Administer the Public Key Infrastructure (PKI), including certificate authority hierarchy and lifecycle management.
• Develop automation for AD, DDI, and PKI operations using scripting, APIs, or orchestration tools.
• Lead the technical planning and execution of infrastructure projects like domain migrations and PKI modernization.
• Serve as the final internal escalation point for complex technical incidents and perform root cause analysis.
• Define infrastructure standards, security hardening practices, and compliance requirements for SOX, PCI, and PII.
• Mentor engineers through design discussions, troubleshooting, peer reviews, and knowledge-sharing sessions.

What we're looking for

• Minimum of 15 years of experience in enterprise IT infrastructure engineering or administration in a mid-size to large environment.
• Minimum of 11 years of hands-on experience designing, administering, and securing Active Directory environments, including multi-forest and multi-domain architectures.
• Minimum of 8 years of hands-on experience designing and administering enterprise DNS, DHCP, and IP address management (DDI) services.
• Minimum of 8 years of hands-on experience designing and administering enterprise PKI / Certificate Services, including certificate authority hierarchy and certificate lifecycle management.
• Experience automating Active Directory, DDI, and PKI administration using scripting, APIs, or orchestration tools.
• Working knowledge of broader WINTEL infrastructure, including Windows Server, virtualization, storage, or endpoint platforms.
• Experience leading enterprise Active Directory, DDI, or Certificate Services projects and mentoring engineers on technical standards.
• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical field (preferred); equivalent professional experience accepted.