First U.S. Community Credit Union · 20 hours ago
Network and Security Administrator
Corporate Office/University Branch, Sacramento, CA, US
Full-time
Onsite
Mid Level
$38.28/hr - $57.42/hr
3+ years expFirst U.S. Community Credit Union is seeking a Network and Security Administrator to support and maintain their core IT infrastructure and contribute to cybersecurity operations. The role involves systems administration, network management, and ensuring high availability and security of technology environments.
Financial Services
Responsibilities
Deploy, configure, and maintain Windows Server environments (physical and virtual)
Administer Azure Active Directory and hybrid Active Directory, including SAML SSO integrations
Manage Microsoft 365 tenants, security configurations, permissions, and application settings
Maintain server patching, OS updates, application patching, and endpoint protection policies
Support backup, replication, SAN/NAS storage, and data protection technologies
Monitor and optimize system performance, uptime, capacity, and resource utilization
Maintain alerting, monitoring, and system health-check processes
Document system configurations, lifecycle changes, and infrastructure behaviors
Administer and support the credit union’s VDI platform (e.g., VMware Horizon, Citrix, AVD, or equivalent)
Deploy, update, and maintain gold images, application layers, and virtual workstation pools
Monitor VDI performance, utilization, and user session health
Troubleshoot login issues, profile errors, application performance problems, and connectivity issues
Implement VDI security controls, including access policies, MFA integration, and profile restrictions
Ensure virtual desktops remain compliant with patching, antivirus, and configuration baselines
Assist with VDI capacity planning, scaling, and lifecycle updates
Document VDI processes, master image changes, and update procedures
Support and administer network infrastructure including switching, routing, VPN, wireless, and firewalls
Troubleshoot advanced LAN/WAN issues such as VLANs, routing, DNS, DHCP, VPN tunnels, QoS, and SD-WAN components
Monitor network health, performance, and availability; assist with optimization and segmentation strategies
Work with vendors to resolve network outages, performance issues, or configuration updates
Assist with firewall rule management, security policies, content filtering, and network hardening
Perform continuous monitoring of system, network, identity, and security events
Support vulnerability management by reviewing scan results, prioritizing findings, and implementing remediation
Apply OS, M365, firmware, and application patches in alignment with security requirements
Assist with third-party risk assessments, vendor security reviews, and evidence collection
Analyze audit logs and alerts for anomalies, suspicious activity, or policy violations
Participate in incident response activities and implement corrective actions
Assist with identity governance, least-privilege standards, and periodic access reviews
Support cybersecurity initiatives such as MFA, endpoint protection, email security, and network hardening
Provide advanced troubleshooting for server, network, VDI, cloud, and security incidents
Resolve escalated support tickets within defined SLAs and document resolutions thoroughly
Serve as a technical escalation point for the help desk and provide guidance, documentation, and support
Conduct root-cause analysis on recurring issues and implement long-term solutions
Participate in system upgrades, infrastructure enhancements, migrations, and security initiatives
Evaluate new technologies, recommend solutions, and assist with architectural improvements
Support planning, testing, deployment, and documentation for new systems and application upgrades
Manage patching, updates, hardware refreshes, lifecycle planning, and end-of-life replacement cycles
Produce and maintain documentation for infrastructure configurations, security processes, VDI images, and network diagrams
Maintain runbooks, SOPs, disaster recovery documentation, and system inventories
Provide KPI reporting, infrastructure health metrics, and security posture updates
Prepare logs, evidence, and documentation required for audits, risk assessments, and regulatory reviews
Qualification
Required
Bachelor's degree in IT, Computer Science, Cybersecurity, or equivalent or formal industry certifications recognized as equivalent experience
3–5+ years of experience in systems administration, network engineering, or infrastructure roles
Experience administering VDI environments (Citrix, VMware Horizon, AVD, etc.)
Experience with security monitoring, vulnerability remediation, and compliance practices
Deep experience with Windows Server, Active Directory, Azure AD, and Microsoft 365
Strong understanding of LAN/WAN networking, including routing, switching, VLANs, VPN, and firewall technologies
Strong troubleshooting skills across servers, networks, cloud systems, and security tools
Knowledge of cybersecurity best practices and hardening standards
Excellent written and verbal communication skills
Ability to work in a fast-paced, highly regulated environment and maintain confidentiality
Preferred
CompTIA Security+ or CySA+
Microsoft Certified: Azure Administrator Associate
Microsoft 365 Certified: Enterprise Administrator Expert
Cisco CCNA or equivalent
VMware VCP, Citrix CCA-V, or Azure Virtual Desktop certifications
Fortinet NSE 3–5 (if applicable)
CompTIA Network+
CISA or CISSP (nice-to-have)
Company
First U.S. Community Credit Union
Since 1936, First U.S.
51-200 employees
H1B Sponsorship
First U.S. Community Credit Union has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
Funding
Current Stage
Growth StageLeadership Team
Shonna Shearson
Chief Executive Officer
Company data provided by crunchbase