Senior Systems Engineer (R5443)
$150,000–$200,000 year
On-siteSan Diego, California, United States
Job Summary
Administer, maintain, and optimize enterprise Windows, Linux, and macOS systems supporting corporate business operations. Design, implement, configure, and support infrastructure including cloud services, identity management, and endpoint management platforms like Microsoft Intune and JAMF. Analyze system performance, availability, and metrics to proactively improve reliability, scalability, and security. Plan and execute infrastructure upgrades, migrations, patch management, and lifecycle replacement initiatives while leading technical implementation of enterprise IT projects. Troubleshoot complex infrastructure, operating system, cloud, and application issues using root cause analysis methodologies. Develop automation using PowerShell, Bash, or similar scripting languages to improve operational efficiency. Maintain accurate system documentation, architecture diagrams, and knowledge base articles. Manage enterprise hardware and software assets throughout their lifecycle including procurement, deployment, and decommissioning. Participate in incident response, change management, disaster recovery planning, and business continuity activities. Mentor junior administrators and provide technical guidance across the Enterprise IT organization.
Required Qualifications
- Bachelor's degree in information technology, Computer Science, or equivalent practical experience
- 5+ years of progressively responsible experience administering enterprise IT infrastructure and systems
- Strong experience supporting Windows, Linux, and macOS operating systems within enterprise environments
- Advanced knowledge of Microsoft Active Directory, Azure AD (Entra ID), Group Policy, DNS, DHCP, and identity management
- Experience administering Microsoft 365 services including Exchange Online, Teams, SharePoint, and Intune
- Experience managing endpoint platforms such as JAMF, Intune, or Microsoft Endpoint Manager
- Working knowledge of networking fundamentals including TCP/IP, routing, VPN, DNS, firewalls, and network troubleshooting
- Experience supporting enterprise cloud infrastructure and SaaS platforms
- Strong troubleshooting, analytical, and root cause analysis skills across operating systems, infrastructure, and enterprise applications
- Experience implementing system upgrades, migrations, and enterprise infrastructure projects
- Experience with scripting and automation using PowerShell, Bash, or similar tools
- Excellent written and verbal communication skills with the ability to work effectively across technical and non-technical teams
- Ability to manage multiple priorities while maintaining high operational standards
- Willingness to participate in an on-call rotation and support planned maintenance activities
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