<p>Position Overview</p><p>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.</p><p>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.</p><p><br></p><p>Key Responsibilities</p><p>Identity &amp; Directory Services</p><ul><li>Configure, maintain, and troubleshoot Active Directory, DNS, and Certificate Authority environments</li><li>Manage authentication systems including ADFS, SAML, SSO, and Okta</li><li>Administer certificate lifecycle management across enterprise systems</li></ul><p>Infrastructure Engineering &amp; Automation</p><ul><li>Develop PowerShell scripts to monitor system health and automate operations</li><li>Support scalable infrastructure across physical, virtual, and cloud environments</li><li>Implement Group Policy and role-based access management</li></ul><p>Security &amp; Compliance</p><ul><li>Apply NIST and DISA security standards and system hardening practices</li><li>Manage certificate issuance and ensure zero-downtime implementation</li><li>Apply patches, enforce compliance, and maintain system integrity</li></ul><p>Operations &amp; Support</p><ul><li>Provide Tier II / III support in Windows Server and Windows 11 environments</li><li>Troubleshoot and resolve complex infrastructure issues</li><li>Maintain system documentation and architecture design artifacts</li></ul><p>Collaboration &amp; Optimization</p><ul><li>Work closely with engineering, system owners, and cross-functional stakeholders</li><li>Identify process improvements and implement infrastructure optimizations</li><li>Support project delivery, timelines, and operational priorities</li></ul>

<p>Required Qualifications</p><ul><li>Bachelor’s degree in Computer Science, Systems Engineering, or related field (or equivalent experience)</li><li>8+ years of systems engineering or administration experience</li><li>Strong expertise in Active Directory, DNS, and Certificate Management</li><li>Experience with ADFS, Okta, or authentication platforms</li><li>Proficiency in PowerShell scripting</li><li>Experience providing Tier II / III Windows support</li><li>Strong troubleshooting, documentation, and communication skills</li></ul><p>•Preferred Qualifications</p><ul><li>Experience with Azure AD / Entra ID</li><li>Experience with DevOps tools and automation workflows</li><li>Knowledge of networking fundamentals (TCP/IP)</li><li>Certifications such as CCNA, CCNP, or ITIL v3</li><li>Experience working in security-focused environments</li></ul>

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