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🥝 Systems Administrator IV

Robert Half Technology | Washington, United States | Posted May 26, 2026

Job Description

Description
Position Overview

We are seeking a highly experienced Senior Systems Engineer to support enterprise infrastructure with a focus on Active Directory, authentication services, and certificate management. This role will partner closely with infrastructure leadership to design, implement, and maintain secure and scalable identity and directory services.

The ideal candidate will bring deep expertise in Windows Server, Active Directory, DNS, certificate authorities, and authentication frameworks, combined with strong scripting capabilities and a proactive, problem‑solving mindset. This role requires ownership, collaboration across engineering teams, and the ability to operate in complex, multi-tiered environments.


Key Responsibilities

Identity & Directory Services

+ Configure, maintain, and troubleshoot Active Directory, DNS, and Certificate Authority environments

+ Manage authentication systems including ADFS, SAML,...

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