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# Infrastructure Engineer

- **Company:** TEKSYSTEMS INC.
- **Location:** Monterey Park, CA, United States
- **Experience:** Expert
- **Salary:** $166,400.0 - $197,600.0
- **Contract:** Temporary contract
- **Skills:** Microsoft Windows, Active Directory, Backup Devices, Cloud Computing, Cloud Engineering, Collaborative Software, Cyber Security, Information Systems, Data Recovery, Dynamic Host Configuration Protocol, Domain Name System (DNS), Hyper-V, Networking Hardware, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Security, Simple Mail Transfer Protocols, Microsoft Office, Microsoft Software, Windows Servers, Routing, Network Administration, Windows PowerShell, Azure Active Directory, Security Software, Microsoft SharePoint, Virtualization Technology, Software Vulnerability Management, Wireless Networks, Computer Networking Systems, Transport Layer Security, File Transfer Protocol (FTP), Connectivity Problems, Firewalls (Computer Science), Falcon Platform, Information Technology, Nessus, Splunk, Vmware
- **Published:** August 22, 2026
- **Apply:** https://dejobs.org/x/x/86CC7CD2C01E41DDAB2412200B59A969/job/

## About the Role

* 4+ years Systems and Network administration experience, * Bachelor's degree in Computer Science, Information Systems, or a related field OR
 * Four (4) additional years of qualifying experience beyond the minimum experience requirement in lieu of a degree

Technical RequirementsMicrosoft Infrastructure

 * Windows Server Administration
 * Active Directory
 * Microsoft Entra ID
 * Microsoft 365 / Office 365
 * SharePoint Administration and Support

Networking

Core Protocols

 * DNS
 * DHCP
 * SMTP
 * HTTP/HTTPS
 * SFTP

Networking Hardware

 * Cisco Meraki
 * VPN Appliances

Security

 * CrowdStrike or similar enterprise endpoint security platform
 * Network Security
 * VPNs
 * ACLs
 * IPSec
 * SSL
 * Cybersecurity and Privacy Best Practices
 * Nessus
 * Splunk

Collaboration Platforms

 * Microsoft Teams Administration
 * Zoom Administration
 * SharePoint Support
 * Website/Intranet Support

Automation

 * PowerShell Scripting
 * Process Automation
 * Administrative Script Development

Virtualization & Cloud

 * VMware
 * Hyper-V
 * Cloud Architecture Experience

Backup & Recovery

 * Rubrik Backup and Recovery

## Description

Our client is seeking a Senior Infrastructure Engineer to support a large enterprise environment consisting of Microsoft technologies, virtualization platforms, networking infrastructure, cybersecurity tools, backup solutions, and collaboration platforms.

This organization manages a large, complex public-sector environment supporting multiple locations, business units, and end users. The role is responsible for maintaining highly available infrastructure, strengthening security posture, supporting enterprise operations, and driving automation and continuous improvement initiatives., * Administer and support Windows Server, Active Directory, Entra ID, Microsoft 365, Teams, and SharePoint environments

 * Support enterprise infrastructure across physical, virtual, and cloud-connected systems
 * Manage VMware and Hyper-V environments
 * Configure and support Cisco Meraki firewalls, switches, wireless infrastructure, and VPN connectivity
 * Troubleshoot DNS, DHCP, routing, switching, and network connectivity issues
 * Monitor infrastructure performance, availability, and security
 * Administer security tools including CrowdStrike, Nessus, and Splunk
 * Support vulnerability management and remediation efforts
 * Manage enterprise backup and recovery operations using Rubrik
 * Develop PowerShell scripts and automation solutions
 * Perform root cause analysis and recommend long-term infrastructure improvements
 * Create SOPs, technical documentation, and knowledge articles
 * Provide Tier III support for escalated infrastructure, networking, and security issues


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