Linux system administrator Jobs in Los Angeles, CA

Position Overview:

• The Systems Administrator is a principal-level engineer responsible for architecting, implementing, and managing large-scale enterprise infrastructure environments with a primary focus on Microsoft Domain Services.
• This includes advanced expertise in Active Directory (AD), Group Policy, DNS, DHCP, and Microsoft Cloud and hybrid integrations (Azure AD, Entra ID).
• The role requires extensive experience designing secure, scalable, and resilient domain architectures supporting thousands of users and systems.
• The Systems Administrator IV will serve as the top-tier technical authority, providing mentorship, direction, and governance for the organization's Microsoft ecosystem.

Pay Rate: $55.00-$60.00/Hour

Responsibilities:

• Architect, design, and maintain enterprise-level Microsoft Active Directory environments, including forest/domain structures, trusts, replication topology, and identity synchronization with Azure AD/Entra ID.
• Lead Group Policy design and lifecycle management, implementing security baselines and automation for configuration consistency.
• Manage and optimize DNS and DHCP infrastructure across multiple sites and domains to ensure high availability, redundancy, and security.
• Develop and maintain enterprise-level identity and access management (IAM) strategies, integrating SSO, MFA, and Conditional Access policies.
• Oversee advanced domain migrations, consolidations, and upgrades, including hybrid and cloud identity projects.
• Act as a subject matter expert (SME) for Windows Server, Microsoft , and Azure infrastructure environments, ensuring secure and reliable operation.
• Collaborate with cybersecurity teams to ensure compliance with best practices, including auditing, least privilege, and role-based access controls (RBAC).
• Utilize PowerShell scripting and automation frameworks to streamline administration, reporting, and configuration enforcement.
• Provide tier IV escalation support for domain-related incidents and performance optimization.
• Mentor and provide technical direction to Systems Administrators IIII and IT project teams.
• Develop comprehensive documentation, runbooks, and policy guidelines for enterprise systems.
• Partner with leadership to evaluate emerging Microsoft technologies, propose improvements, and lead implementation initiatives aligned with business goals.

Required Qualifications:

• Bachelor's Degree in Computer Science, Information Systems, or related field; Master's Degree preferred.
• Twelve (12+) years of progressive systems administration experience with at least seven (7+) years focused on Microsoft domain and identity services in large enterprise environments.
• Expert-level understanding of Active Directory architecture, replication, and security; Group Policy design; DNS, DHCP, and name resolution architecture; Windows Server (//); Azure AD / Entra ID and hybrid identity synchronization.
• Strong background in PowerShell scripting and infrastructure automation.
• Demonstrated experience leading enterprise domain projects, including forest restructuring, migration, and modernization.
• Familiarity with PKI, ADFS, Azure AD Connect, Intune, and MDM policies.
• Deep understanding of ITIL processes, change management, and cybersecurity compliance frameworks (HIPAA, NIST, SOC 2, etc.).
• Excellent leadership, communication, and documentation skills.
• Quality Standards: Models professionalism, integrity, and confidentiality at all times. Maintains expert-level awareness of Microsoft best practices, security standards, and emerging technologies. Communicates effectively with technical and non-technical stakeholders. Provides mentorship and fosters a culture of knowledge sharing and collaboration. Ensures compliance with all organizational, regulatory, and security policies.
• Required Microsoft Certifications: Microsoft Certified: Windows Server Hybrid Administrator Associate, Azure Administrator Associate, or Azure Solutions Architect Expert Microsoft Certified: Active Directory and Identity Management (MCSE or equivalent legacy certification acceptable)

If hired, you will enjoy the following ECLARO Benefits:

• k Retirement Savings Plan administered by Merrill Lynch
• Commuter Check Pretax Commuter Benefits
• Eligibility to purchase Medical, Dental & Vision Insurance through ECLARO

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